Top Back Office Outsourcing Companies in Bulgaria

Ratings Updated: April 2, 2026

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23 Companies

Country: Bulgaria

Services: Back Office Outsourcing

List of the Top Bulgaria Back Office Outsourcing Service Providers

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TECHSPEED INC

4.9 18 reviews
Premier Verified

$1,000+

< $25 / hr

50 - 249

Serves Bulgaria

Services provided

20% Back Office Outsourcing

15% Customer Service Outsourcing

15% Data Annotation Services +5 services

15% Document Digitization & Management

10% Call Center Services

10% Content Moderation Services

10% Litigation Support Services

5% Transcription

TECHSPEED INC is a Business Process Outsourcing (BPO) company specializing in Back Office Services and Administrative Support Services. With consistently high ratings, clients commend their effective project management, proactive communication, and high accountability. They maintain a high accuracy rate in data entry and efficiently manage large product catalogs, with 100% of reviewers highlighting their reliable and responsive service.

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Reviews mention Well-organized projects
Clients have consistently praised TechSpeed LLC for their well-organized project management, highlighting their efficiency in handling complex data entry tasks. One client noted, "Their level of organization and willingness to tackle the project with an expectation of perfection" was particularly impressive. Another emphasized that the project was always completed on time and with little to no errors, stating, "We have come to rely on Techspeed to complete this project successfully for our organization." Overall sentiment reflects high satisfaction with their structured approach.

Data Entry for Scholarship Fund

5.0 Jul 11, 2019

Most impressive is their level of organization and their willingness to tackle the project with an expectation of perfection. They understand that it takes hard work on the front side of a technical data entry project to achieve a successful conclusion. Their level of consistency in being efficient, responsive, and error-free is something to be admired.
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Data Entry & Mobile App Dev for Boutique Design Firm

5.0 Dec 17, 2018

We had a single point of contact who kept things clear and organized.
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2 of 2 Back Office Outsourcing reviews are 5 stars

2 new reviews for Back Office Outsourcing in past 6 months

Less than $10,000 avg. project cost

Back Office Outsourcing PROJECT HIGHLIGHT

Customer Service Outsourcing for Home Care Agency
5.0 — TECHSPEED INC provides data entry and call center services for a home care agency. The team handles data entry tasks, including renaming, splicing, and entering data. Read more
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Average Project Cost Breakdown

Less than $10,000 (6) $10,000 to $49,000 (5)

What Clients Have Said
Clients consistently highlight TECHSPEED INC's competitive pricing and exceptional value for money. One client noted they chose TECHSPEED for their 'good value for cost,' emphasizing the superior volume and speed of deliverables compared to other vendors. Another pointed out that their pricing fit within budget while maintaining high-quality service. Overall, the sentiment reflects strong satisfaction with the cost-effectiveness and reliability of TECHSPEED's services, with multiple clients expressing no identified areas for improvement.
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United States (16) Canada (1)

This provider is fluent in 1 language:

English

This provider is available in 1 time zone:

Pacific Standard Time (PST)

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Growth Hub

4.8 16 reviews
Premier Verified

Undisclosed

< $25 / hr

50 - 249

Serves Bulgaria

Services provided

60% Back Office Outsourcing

25% AI Development

15% Data Annotation Services

Growth Hub is a Business Process Outsourcing company specializing in administrative support services such as data entry, research, and workflow management. The reviews highlight their efficiency, accuracy, and adaptability, with a 100% satisfaction rate among clients. Growth Hub's ability to deliver customized solutions promptly and their proactive approach to client needs are consistently praised across reviews.

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Reviews mention Easy to work with
Clients consistently highlight Growth Hub's ease of collaboration, noting their professionalism and responsiveness. The CEO of Pollen VC remarked on their communicative nature and described them as 'easy to work with,' while the Founder of Zendht Venture Studio emphasized their 'excellent' project management and effective services. Overall, the sentiment is overwhelmingly positive, with clients expressing satisfaction and a willingness to continue the partnership.

Lead Generation Services for Credit Line Provider

4.5 Jan 12, 2022

Growth Hub is quickly becoming a trusted advisor and there’s a lot we will work together on in the future. Their team is professional, communicative, and easy to work with.
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4 of 5 Back Office Outsourcing reviews are 5 stars

1 new review for Back Office Outsourcing in past 6 months

$10,000 – $49,000 avg. project cost

Back Office Outsourcing PROJECT HIGHLIGHT

Back Office Outsourcing & Task Automation for Finance Firm
5.0 — Growth Hub helped integrate a finance firm's CRM with the Pitchbook platform in order to identify 15,000 companies. The team also built proprietary applications that automated the client's Read more
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Industry Experience

Growth Hub has demonstrated expertise across various industries including Consulting, Financial Services, Medical, Software, Human Resources, and eCommerce. Clients commend their responsiveness, attention to detail, and ability to deliver tailored solutions. In Consulting and Financial Services, feedback highlights efficiency in data management and lead generation. The Medical sector feedback emphasizes effective appointment setting, while Software clients appreciated enhanced lead quality. Overall sentiment is positive across all sectors, indicating strong potential for collaboration in data-driven projects and lead generation.
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Consulting Financial services Other Industry Human Resources Medical Software Information technology Other industries eCommerce

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Average Project Cost Breakdown

Less than $10,000 (4) $50,000 to $199,999 (3) $10,000 to $49,000 (2)

What Clients Have Said
Clients consistently highlight Growth Hub's competitive pricing and exceptional value for money. Feedback indicates that their services fit within budget constraints while delivering high-quality results. For instance, one client noted that Growth Hub provided 'good value for cost' and facilitated significant lead generation success. Overall, the sentiment reflects satisfaction with the balance of cost and quality, suggesting that clients feel they receive more than what they pay for.
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Big Outsource

5.0 52 reviews
Premier Verified

$10,000+

< $25 / hr

250 - 999

Serves Bulgaria

Services provided

30% Back Office Outsourcing

40% Customer Service Outsourcing

20% Call Center Services +1 service

10% Finance & Accounting Outsourcing (FAO)

Big Outsource is a Business Process Outsourcing company specializing in Remote Office Support and Administrative Support Services. It consistently receives high praise for reliability and professionalism, with clients noting improvements in efficiency and communication. Approximately 95% of reviews highlight their ability to integrate seamlessly with existing workflows, while 70% commend their proactive communication. Opportunities for enhancement include expanding service hours and offering more proactive tool suggestions.

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Reviews mention Flexible
Overall sentiment regarding Big Outsource's flexibility is highly positive, with clients noting their adaptability to specific needs and creative workflows. One client emphasized their ability to balance structure amid creative chaos, stating they 'worked with our creative flow instead of trying to box us into a process that didn’t fit.' Another remarked on their responsiveness and willingness to adjust staffing as needed, showcasing a commendable level of flexibility that significantly improved operational efficiency.

Back Office Support & Graphic Design for E-Commerce Platform

5.0 Jul 29, 2023

They delivered on time, were responsive to our needs, and showed flexibility in their approach based on our feedback. Big Outsource's project management was commendable and they respond timely to our need.
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Data Entry for E-Commerce Company

5.0 Jul 26, 2023

While the initial stages of our partnership involved a bit of a learning curve, Big Outsource demonstrated commendable flexibility and responsiveness. They ensured that any minor hurdles were promptly addressed, and our collaboration took off smoothly from there.
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Video Editing Support for Real Estate Investment Company

5.0 May 20, 2025

They weren’t rigid. They worked with our creative flow instead of trying to box us into a process that didn’t fit. They knew how to balance structure with the creative chaos we tend to operate in. Super responsive and always on it.
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1 of 1 reviews is 5 stars

1 new review for Back Office Outsourcing services

$50,000 – $199,999 avg. project cost

Reviewed 1 time in the past 6 months
In the past six months, clients have praised Big Outsource for their responsiveness and ability to enhance project efficiency. One client noted a 30% improvement in turnaround time and appreciated the proactive communication and support provided by their assigned assistant. The alignment of company values and budget considerations were key factors in selecting Big Outsource. However, there is a suggestion for improvement in proposing new content tools, indicating room for further innovation.
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23 of 23 Back Office Outsourcing reviews are 5 stars

13 new reviews for Back Office Outsourcing in past 6 months

$50,000 – $199,999 avg. project cost

Back Office Outsourcing PROJECT HIGHLIGHT

Documentation & Transcription for Preservation Mgmt. Company
5.0 — Big Outsource provided editing and formatting services for a cultural institution. Their tasks included reformatting PowerPoint decks, creating trainer-facing guides, and transcribing Zoom Read more
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Average Project Cost Breakdown

$50,000 to $199,999 (15) $10,000 to $49,000 (1) $200,000 to $999,999 (1)

What Clients Have Said
Clients frequently commend Big Outsource for their competitive pricing and exceptional value for money. Many highlighted that the pricing fit their budgets while still delivering high-quality service. For instance, one client noted a 70% reduction in in-house admin workload and a 15% increase in client satisfaction, emphasizing the value derived from their partnership. Overall, the sentiment reflects strong satisfaction with cost versus the quality of service provided, underscoring Big Outsource's alignment with client needs and expectations.
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Pontica Solutions

4.7 3 reviews

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Premier Verified

Undisclosed

< $25 / hr

250 - 999

Sofia, Bulgaria

Services provided

30% Back Office Outsourcing

40% Customer Service Outsourcing

20% IT Staff Augmentation +2 services

5% AI Consulting

5% Generative AI

Pontica Solutions is a Business Process Outsourcing company specializing in Remote Back Office Solutions and Administrative Support Services. They provided efficient customer support for a transportation company, with 100% of feedback highlighting their flexibility, responsiveness, and ability to deliver on time. Their work led to reduced call wait times and enhanced customer satisfaction.

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1 of 1 Back Office Outsourcing reviews are 5 stars

1 new review for Back Office Outsourcing in past 6 months

$10,000 – $49,000 avg. project cost

Back Office Outsourcing PROJECT HIGHLIGHT

Call Center Services for Transportation Company
5.0 — Pontica Solutions provided call center services for an transportation company. The team handled customer inquiries via phone and email, managed bookings, resolved issues, and offered performance Read more
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Industry Experience

Pontica Solutions has demonstrated expertise across multiple industries, including Transportation, Financial Services, and Logistics & Supply Chain. Feedback indicates strong performance in customer service management, operational flexibility, and responsiveness, leading to measurable improvements in customer satisfaction and operational efficiency. Their ability to adapt to specific industry needs shows a solid fit for clients seeking reliable support in high-demand sectors, particularly in logistics and customer-facing services.
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Transportation Financial services Logistics & Supply Chain

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Average Project Cost Breakdown

$1,000,000 to $9,999,999 (1)

What Clients Have Said
Clients consistently highlight Pontica Solutions' competitive pricing and excellent value for money. For instance, a transportation company noted that Pontica's pricing fit their budget and provided good value relative to cost. Similarly, a Department Head at Qonto emphasized the company's strong alignment with their needs and great cultural fit, attributing this to the good value for cost. Overall, sentiment regarding pricing is positive, with clients appreciating the balance between cost and quality of service.
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MarKam Solutions

5.0 9 reviews
Premier Verified

$1,000+

< $25 / hr

50 - 249

Sofia, Bulgaria

Services provided

10% Back Office Outsourcing

30% Call Center Services

20% Customer Service Outsourcing +2 services

20% IT Managed Services

20% Sales Outsourcing

MarKam Solutions is a Business Process Outsourcing company specializing in Remote Back Office Solutions and Administrative Support Services. With 100% positive feedback, reviewers commend their flexibility, efficient management structure, and ability to integrate seamlessly with client workflows, enhancing Amazon account operations through dedicated virtual assistant teams.

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Reviews mention Proactive
Clients consistently highlight MarKam Solutions' proactive approach and effective communication. One client noted their 'clear and proactive' communication with regular updates, while another emphasized their 'exceptional project management' and ability to adapt swiftly to evolving needs. This responsiveness has led to improved outcomes, including a 50% increase in lead generation and efficient project execution. Overall, feedback reflects a strong sentiment towards MarKam's proactive engagement, which significantly enhances collaboration and results.

Sales Outsourcing & Lead Gen for Advertising Account Co

5.0 Feb 13, 2025

MarKam Solutions demonstrated exceptional project management throughout our collaboration. They maintained clear timelines, delivered every milestone on schedule, and proactively communicated progress at each stage. Their team was highly responsive, adapting quickly to our feedback and evolving priorities. Whenever new needs arose, they acted with agility — offering practical solutions, strategic insights, and a hands-on approach that ensured smooth execution and consistent results.
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Back Office Outsourcing for Creative Agency

5.0 Nov 5, 2025

They managed the project efficiently, delivering all tasks and deliverables on time. Communication was clear and proactive, with regular progress updates and performance reports. Their structured approach made coordination easy and ensured deadlines were consistently met.
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3 of 3 reviews are 5 stars

1 new review for Back Office Outsourcing services

$10,000 – $49,000 avg. project cost

Reviewed 3 times in the past 6 months
Recent reviews of MarKam Solutions reflect a strong overall sentiment, highlighting their exceptional project management, responsiveness, and ability to tailor solutions to client needs. Clients praised their effective communication and quick adaptation to changes, with one noting a 50% increase in lead generation. Another remarked on their personal approach and commitment to delivering quality services within budget constraints. No significant areas for improvement were identified, underscoring their reliability and professionalism.
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Average Project Cost Breakdown

$50,000 to $199,999 (3) $10,000 to $49,000 (1) $200,000 to $999,999 (1)

What Clients Have Said
Clients consistently praised MarKam Solutions for their competitive pricing and excellent value for money. One client highlighted that their pricing fit the budget while providing a 'good value for cost.' Another noted a 35% decrease in labor costs while meeting sales goals, emphasizing affordability without sacrificing quality. Overall, feedback reflects strong satisfaction with cost-effectiveness, suggesting that MarKam Solutions delivers substantial value relative to their fees.
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United States (4) Bulgaria (3) England (1)

This provider is fluent in 10 languages:

Arabic

English

Dutch

German

Romanian

Spanish

Swedish

Russian

Portuguese

Italian

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MWDN

4.9 22 reviews
Premier Verified

$25,000+

$25 - $49 / hr

50 - 249

Sofia, Bulgaria

Services provided

10% Back Office Outsourcing

15% Employer of Record (EOR) Services

15% IT Staff Augmentation +5 services

15% Recruiting

15% Staffing

10% Custom Software Development

10% Executive Search

10% Recruitment Process Outsourcing

MWDN is a versatile software development and outsourcing company, specializing in providing skilled development teams and technical solutions. Their services are marked by professionalism, flexibility, and effective project management, consistently delivering on time and adapting to the dynamic needs of their clients. Reviews reflect high satisfaction, with over 90% of clients praising MWDN for their cultural fit, value for cost, and quality of deliverables.

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Reviews mention Communicative
Clients consistently praised MWDN for their effective communication and responsiveness. Feedback highlighted their 'clear, proactive communication' and 'great culture fit,' which fostered a collaborative environment. One client noted the team's 'enthusiastic and very responsive' approach, while another emphasized 'smooth communication' and 'clear technical details.' Overall, the sentiment regarding MWDN's communicative abilities is overwhelmingly positive, indicating a strong alignment with client needs and expectations.

Custom Web App Development for Software Company

5.0 Feb 29, 2024

The communication was great too. I worked with a developer and did the project management. But their delivery was perfect. Everything was on time and the developer was super experienced. The communication was great too.
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Web & Mobile App Development for Wireless Solutions Co

5.0 Dec 12, 2023

Clear and transparent communication is a hallmark of our engagement with MWDN. From project updates to issue resolution, the open lines of communication fostered a sense of trust and collaboration. On-Time Delivery, MWDN consistently met project deadlines, resulting in the timely delivery of goods and services.
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Development for Workforce Management SaaS Firm

5.0 Sep 20, 2016

They were also enthusiastic, very responsive, and very good at communication and methodology. We had a very good interaction throughout this period of time. We did Agile software development. We use various cloud services for hosting servers, issue tracking, and progress tracking, all done through various tools and online services.
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iOS & Android Development for E-Learning Startup

5.0 Jul 27, 2016

Communication with MWDN was quite smooth. We had bi-weekly Skype calls during which MWDN provided clear technical details. Their English level was also quite good. In terms of delivery, MWDN stuck to our plan. There were small issues here and there, but compared to other companies that I used to work with, MWDN was very good.
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Custom Software Development for Predictive Analytics Company

5.0 Sep 8, 2025

MWDN managed the project very effectively, delivering all milestones on time. They were highly responsive to our needs, adapted quickly to feedback, and maintained clear, proactive communication throughout. MWDN stood out for their professionalism, responsiveness, and friendly, supportive approach.
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Industry Experience

MWDN has demonstrated expertise across various industries, including eCommerce, financial services, automotive, and advertising & marketing. Clients praised MWDN's professionalism, responsiveness, and ability to deliver high-quality solutions on time. In eCommerce, they efficiently scaled technical teams for data analysis, while in financial services, they integrated seamlessly into existing teams as valued members. Overall, MWDN's strengths lie in software development, technical staffing, and project management, making them a suitable partner across these sectors.
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Software eCommerce Automotive Consumer Products Education Other industries Information technology Human Resources Financial services IT Services Advertising & marketing Gaming Other Industry

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More responsive than most other service providers

MWDN is very responsive
They are a great candidate to start a conversation with. Send them a short message or project inquiry.
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Sofia, Bulgaria

Tsarigradsko Shose Blvd 111B, Sofia Tech Park
Sofia, Bulgaria 1784
2 - 5

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Mercatus

4.8 22 reviews
Verified

$5,000+

< $25 / hr

50 - 249

Sofia, Bulgaria

Services provided

10% Back Office Outsourcing

50% Customer Service Outsourcing

20% Sales Outsourcing +2 services

10% Call Center Services

10% IT Staff Augmentation

Mercatus is a lead generation and outreach company offering services such as LinkedIn campaigns, cold calling, and email outreach to increase client visibility and generate business leads. Feedback from clients is generally positive, with 90% highlighting impressive project management, open communication, and effective campaign execution. However, 20% noted challenges in expanding market reach, suggesting areas for improvement in targeting specific industries and markets.

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Industry Experience

Mercatus demonstrates strong expertise in lead generation across diverse industries including Consulting, IT Services, Engineering, Retail, Software, Consumer Products, Construction, and Financial Services. Clients commend their effective communication, project management, and ability to adapt to specific industry needs. Overall sentiment is positive, with notable success in enhancing sales pipelines and client engagement, particularly in IT and Consulting. Potential clients in these sectors may find Mercatus to be a suitable partner for their lead generation and outreach initiatives.
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Information technology Consulting IT Services Engineering Retail Software Consumer Products Construction Manufacturing Human Resources Financial services

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Average Project Cost Breakdown

Less than $10,000 (11) $10,000 to $49,000 (5) $50,000 to $199,999 (2)

What Clients Have Said
Clients consistently highlight Mercatus for providing good value for money, with feedback indicating that their pricing aligns well with budget expectations. One client noted, 'Pricing fit our budget' and described the service as 'good value for cost.' Another emphasized that their investment was repaid within a year. Despite some suggestions for lower prices, the overall sentiment remains positive, with clients appreciating the quality of services relative to the costs incurred.
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More responsive than most other service providers

Mercatus is very responsive
They are a great candidate to start a conversation with. Send them a short message or project inquiry.
Get in Touch

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Bulgaria (17) Romania (2) Estonia (1) Spain (1)

This provider is fluent in 24 languages:

English

Spanish

Arabic

Russian

Portuguese

German

French

Turkish

Italian

Polish

Ukrainian

Romanian

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This provider is available in 6 time zones:

Greenwich Mean Time (GMT)

Arabia Standard Time (AST)

Central European Time (CET)

Central Standard Time (CST)

Eastern European Time (EET)

Eastern Standard Time (EST)

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OWORKERS

4.5 2 reviews
Verified

$1,000+

< $25 / hr

250 - 999

Plovdiv, Bulgaria

Services provided

60% Back Office Outsourcing

20% Customer Service Outsourcing

20% Finance & Accounting Outsourcing (FAO)

OWORKERS is a BPO company specializing in document verification and app monitoring services across various regions. Reviews indicate a high level of satisfaction with their problem-solving abilities and quick feedback, with 100% of reviewers highlighting their effective communication and decision-making. Clients appreciate their ownership and dedication, with no significant areas for improvement mentioned.

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Industry Experience

OWORKERS has received positive feedback across the IT Services and Information Technology industries. Clients commend their expertise in establishing BPO teams for document verification and app monitoring, highlighting strengths in problem-solving, quick feedback, and operational efficiency. The overall sentiment reflects satisfaction with their ability to enhance service quality and monitoring effectiveness, making them a suitable partner for companies in need of robust support in these sectors.
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IT Services Information technology

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Average Project Cost Breakdown

$10,000 to $49,000 (1)

What Clients Have Said
Clients commend OWORKERS for their competitive pricing and value for money, noting that cost-effectiveness was a key factor in their selection process. One client highlighted their ability to solve problems quickly and effectively, while another praised their ownership and dedication to service quality. Overall, feedback indicates satisfaction with the balance of cost and service quality, reinforcing OWORKERS' reputation as a valuable partner.
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Estonia (1) South Korea (1)

This provider is fluent in 13 languages:

English

Spanish

Russian

Portuguese

German

French

Turkish

Cantonese

Italian

Polish

Ukrainian

Romanian

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This provider is available in 10 time zones:

Middle East Time (MET)

Greenwich Mean Time (GMT)

Central European Time (CET)

Central Standard Time (CST)

Eastern European Time (EET)

Eastern Standard Time (EST)

Pacific Standard Time (PST)

Phoenix Standard Time (PNT)

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Plovdiv, Bulgaria

Rilon center building, bul. “Konstantin Velichkov” 2, Office 1, floor 5, Sadiyski
Plovdiv, Bulgaria 4000
76 - 100

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Flat Rock Technology

4.7 14 reviews

$25,000+

$50 - $99 / hr

250 - 999

Varna, Bulgaria

Services provided

30% Back Office Outsourcing

30% Custom Software Development

15% Mobile App Development +3 services

10% IT Staff Augmentation

10% Web Design

5% UX/UI Design

Flat Rock Technology is a versatile technology company offering services in web and mobile app development, cloud infrastructure management, and custom software solutions. The company receives predominantly positive feedback, with around 90% of reviewers highlighting their professionalism, timely delivery, and ability to understand client needs. A recurring theme is their effective project management, although some suggest that communication can occasionally be improved. Overall, clients appreciate their adaptability and commitment to quality.

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Reviews mention Easy to reach
Clients have consistently noted the accessibility of Flat Rock Technology, praising their responsiveness and availability. One client highlighted, "They make themselves available to us, which is something we don’t always get from other providers," emphasizing a strong commitment to customer engagement. Overall, the sentiment reflects a positive experience with communication and project management, contributing to a smooth working relationship.

Chatbot Development for Telecommunications Company

5.0 May 4, 2020

Flat Rock takes us very seriously as a customer. They make themselves available to us, which is something we don’t always get from other providers. It’s been a great relationship.
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Industry Experience

Flat Rock Technology has garnered positive feedback across diverse industries including Advertising & Marketing, IT Services, Software, Telecommunications, Financial Services, Real Estate, Arts & Entertainment, Education, Retail, and Consumer Products. Clients commend their expertise in cloud infrastructure management, software development, and mobile applications. Overall sentiment is favorable, highlighting their responsiveness, effective communication, and ability to deliver high-quality results. Potential clients in need of reliable technical support, innovative solutions, and strong collaboration may find Flat Rock Technology a suitable partner.
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Advertising & marketing IT Services Software Telecommunications Financial services Real estate Arts, entertainment & music Education Retail Consumer Products Other Industry

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England (4) Israel (2) Spain (1) Sweden (1)

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Varna, Bulgaria

113 General Kolev str
Varna, Bulgaria 9002
251 - 300

+359 52 63 63 17

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CXG Business Process Outsourcing

5.0 1 review

Undisclosed

Undisclosed

50 - 249

Sofia, Bulgaria

Services provided

21% Back Office Outsourcing

25% Customer Service Outsourcing

24% Call Center Services +2 services

15% Recruiting

15% Staffing

CXG Business Process Outsourcing is a specialized BPO company known for its efficiency in scaling teams to manage shared services, AI training, and data analytics. Reviews highlight their professionalism, effective collaboration, and adaptability, with a 100% positive feedback rate. Clients appreciate their ability to backfill positions swiftly, ensuring seamless service delivery.

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Industry Experience

CXG Business Process Outsourcing has demonstrated strong expertise in the Software industry, particularly in managed and shared services for a SAAS company in Business Spend Management. The firm's strengths include rapid resource ramp-up, effective team integration, and AI training for invoice processing and data classification. Clients express satisfaction with CXG's professionalism and collaborative approach, resulting in seamless service delivery and team support. Overall, CXG is well-suited for clients in the Software sector seeking agile and efficient outsourcing solutions.
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Software

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Average Project Cost Breakdown

$200,000 to $999,999 (1)

What Clients Have Said
Clients generally perceive CXG Business Process Outsourcing as offering strong value for money. One client noted that CXG's pricing was competitive compared to IT-focused service providers, highlighting their specialization in BPO. The swift ramp-up of resources and the ability to fill positions quickly were also praised, emphasizing the cost-effectiveness of their services. Overall, the sentiment reflects satisfaction with both the cost and the quality of service provided.
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InfoSource Bulgaria Ltd

4.5 2 reviews

$1,000+

< $25 / hr

10 - 49

Sofia, Bulgaria

Services provided

20% Back Office Outsourcing

20% Call Center Services

20% Document Digitization & Management +3 services

20% Recruiting

10% Customer Service Outsourcing

10% Finance & Accounting Outsourcing (FAO)

InfoSource Bulgaria Ltd is a data management and analysis company specializing in extracting and structuring information from financial and executive reports. The company is consistently praised for its cost-effectiveness, attention to detail, and responsive project management. Approximately 100% of reviewers highlighted their satisfaction with the quality of service and customer-focused approach.

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Reviews mention Detail-oriented
Clients have consistently highlighted InfoSource Bulgaria Ltd's exceptional attention to detail and data accuracy. One client specifically noted that the project was completed with 'required precision and data accuracy,' emphasizing the company's detail-oriented approach. Furthermore, another reviewer remarked on their 'remarkable' attention to detail, which contributed significantly to the project's success. Overall, the sentiment regarding their detail-oriented nature is overwhelmingly positive.

Data Curation for Talent Sourcing Platform

4.0 Jul 26, 2022

They finished the project with the required precision and data accuracy. Their cost-effectiveness and attention to detail are remarkable.
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Industry Experience

InfoSource Bulgaria Ltd has demonstrated expertise primarily in the Media and Software industries. Clients in the Media sector praised their responsiveness, quality, and alignment with company values, resulting in successful data analysis of financial reports. In the Software industry, they were recognized for precision and attention to detail in manual curation projects, particularly in talent intelligence. Overall, client sentiment reflects satisfaction with cost-effectiveness and proactive communication, making them a strong option for companies in these fields.
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Software Media

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Average Project Cost Breakdown

$50,000 to $199,999 (1)

What Clients Have Said
Clients have consistently praised InfoSource Bulgaria Ltd for their cost-effectiveness and overall value for money. One client highlighted that their pricing fit the budget and provided good value, emphasizing their focus on customer satisfaction and high-quality service at fair prices. Another review specifically noted the company's remarkable cost-effectiveness and attention to detail, affirming their ability to deliver precision and accuracy in their work.
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Netherlands (1) United States (1)

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Callboxs

5.0 4 reviews

$5,000+

< $25 / hr

250 - 999

Burgas, Bulgaria

Services provided

20% Back Office Outsourcing

50% Call Center Services

30% Customer Service Outsourcing

Callboxs is an outsourcing service provider specializing in customer support and market strategy development. Clients commend them for their adaptability, creativity, and professionalism, with 100% of feedback indicating satisfaction. Notably, they helped one client increase sales by 100% in two months, showcasing their effectiveness in market penetration and customer service enhancement.

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Reviews mention Flexible
Callbox has received positive feedback regarding their flexibility in adapting to client needs. A COO noted their 'flexible approach and high professionalism,' which was instrumental in successfully entering the challenging Eastern European market. The client emphasized that Callbox's support through administrative services and tailored strategies significantly contributed to increased sales and overall project success. Overall, the sentiment reflects a strong appreciation for Callbox's adaptability and commitment to client objectives.

Business Consulting for Logistics Company

5.0 Sep 21, 2021

They are a stable partner, fully committed to achieving common goals. They have a flexible approach and high professionalism.
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Industry Experience

Callbox demonstrates strong expertise in the Hospitality and Manufacturing industries. Clients in Hospitality praised their adaptability, effective customer service, and proactive approach, leading to improved client satisfaction. In Manufacturing, they excelled in market entry strategies, contributing to a 100% sales increase in Eastern Europe. Overall, feedback indicates Callbox's strengths in communication, strategic planning, and professionalism, making them a suitable partner for companies in these sectors seeking growth and enhanced customer engagement.
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Hospitality & leisure Manufacturing

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Average Project Cost Breakdown

Less than $10,000 (1) $10,000 to $49,000 (1)

What Clients Have Said
Clients have praised Callboxs for their exceptional value for money, noting competitive rates such as $14 per hour and a strong return on investment through increased sales and enhanced customer satisfaction. One client highlighted the company's proactive approach and the added value of a complimentary customer satisfaction survey. Overall sentiment reflects a high level of satisfaction with the cost-effectiveness of their services and the quality of support provided.
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MENA Software

4.8 4 reviews

$5,000+

$25 - $49 / hr

10 - 49

Sofia, Bulgaria

Services provided

15% Back Office Outsourcing

25% Blockchain

10% BI & Big Data Consulting & SI +5 services

10% Business Consulting

10% Custom Software Development

10% IoT Development

10% Mobile App Development

10% Web Development

MENA Software is a versatile software development company specializing in platform development, blockchain solutions, and app creation. Their services have received overwhelmingly positive feedback, with approximately 100% of clients noting their effective project management and dedication. Clients consistently highlight the company's strong competence, high-quality output, and affordability, with no major areas for improvement suggested.

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Reviews mention Reasonable pricing
Clients have expressed positive sentiments regarding MENA Software's reasonable pricing. One client noted that the company provided software updates at an 'affordable price,' highlighting the value offered. Additionally, feedback emphasized their 'great prices' alongside commendable service quality, indicating that clients feel they receive excellent value for their investment. Overall, MENA Software is perceived as a cost-effective option for software development services.

Software Update for Online Consulting Service

5.0 Oct 19, 2018

The way they work and deal with customers is remarkable. They also offer great prices.
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Industry Experience

MENA Software has demonstrated expertise across several industries, including Information Technology, Advertising & Marketing, Gaming, and IT Services. Clients commend their project management effectiveness and technical competence, with particular praise for their ability to deliver high-quality solutions efficiently. Feedback indicates strong satisfaction in software development and design, particularly in blockchain and gaming projects, suggesting they are well-suited for clients in these sectors looking for reliable and innovative technology partners.
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Information technology Advertising & marketing Gaming IT Services

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Average Project Cost Breakdown

$10,000 to $49,000 (2) Less than $10,000 (1) $50,000 to $199,999 (1)

What Clients Have Said
MENA Software has received positive feedback regarding their overall cost and value for money. Clients highlighted their cost-effective solutions, with one stating that their services were 'affordable' and another noting that they provided 'excellent' service at great prices. Additionally, a client emphasized the team's efficiency and project management, describing them as 'cost-effective' and 'professional.' Overall, clients express high satisfaction with the value received for the investment made.
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Bulgaria (2) United Arab Emirates (1)

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ProcessFlows

Not yet reviewed

$1,000+

< $25 / hr

50 - 249

София, Bulgaria

Services provided

50% Back Office Outsourcing

10% Business Consulting

10% Custom Software Development +3 services

10% Customer Service Outsourcing

10% Finance & Accounting Outsourcing (FAO)

10% IT Managed Services

ProcessFlows, a Back Office Outsourcing company, focus on Back Office Outsourcing and Custom Software Development. They were launched in 1987.
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София, Bulgaria

Mandarin Centre 53B Nikola Vaptsarov Blvd. 2nd floor
София, Bulgaria 1407
50 - 75

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Flow Logic

Not yet reviewed

Undisclosed

Undisclosed

2 - 9

Sofia, Bulgaria

Services provided

100% Back Office Outsourcing

Flow Logic is a Back Office Outsourcing company. The small Sofia, Bulgaria-based team focuses on Back Office Outsourcing. The firm was launched in 2020.
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AppGreat

Not yet reviewed

$5,000+

$25 - $49 / hr

50 - 249

Sofia, Bulgaria

Services provided

10% Back Office Outsourcing

10% Custom Software Development

10% Customer Service Outsourcing +7 services

10% Cybersecurity

10% DevOps Managed Services

10% IT Managed Services

10% IT Staff Augmentation

10% Mobile App Development

10% UX/UI Design

10% Web Development

AppGreat is a midsize user experience company. They specialize in UX/UI Design and Cybersecurity and were founded in 2019.
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Remotek Ltd

Not yet reviewed

$1,000+

$25 - $49 / hr

2 - 9

Varna, Bulgaria

Services provided

100% Back Office Outsourcing

Back Office Outsourcing company Remotek Ltd was founded in 2008. The company offers Back Office Outsourcing.
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ODEON msc - A TTC brand

Not yet reviewed

$1,000+

$25 - $49 / hr

10 - 49

Sofia, Bulgaria

Services provided

10% Back Office Outsourcing

20% Finance & Accounting Outsourcing (FAO)

20% HR Consulting +5 services

10% Accounting

10% Business Consulting

10% Call Center Services

10% Customer Service Outsourcing

10% Sales Outsourcing

Established in 2019, ODEON msc - A TTC brand is a Finance & Accounting Outsourcing (FAO) company. The team offers Finance & Accounting Outsourcing (FAO) and HR Consulting.
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Sixty K Ltd

Not yet reviewed

$50,000+

< $25 / hr

1,000 - 9,999

Sofia, Bulgaria

Services provided

10% Back Office Outsourcing

80% Customer Service Outsourcing

10% Call Center Services

Sixty K Ltd is a large Customer Service Outsourcing company. Founded in 2008, the team focuses on Customer Service Outsourcing and Back Office Outsourcing.
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Software Group

Not yet reviewed

$10,000+

$50 - $99 / hr

250 - 999

Sofia, Bulgaria

Services provided

30% Back Office Outsourcing

40% IT Strategy Consulting

30% Other IT Consulting and SI

Software Group is an IT strategy consulting company launched in 2009. Their team offers IT strategy consulting and Back Office Outsourcing.
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Customer Umbrella

5.0 20 reviews

$1,000+

< $25 / hr

250 - 999

Varna, Bulgaria

Services provided

20% Back Office Outsourcing

20% IT Managed Services

20% Staffing +4 services

15% Customer Service Outsourcing

10% Call Center Services

10% IT Staff Augmentation

5% Recruiting

Customer Umbrella is a provider of Remote Back Office Solutions and Administrative Outsourcing services. The company receives overwhelmingly positive feedback, with 100% of reviews highlighting their expertise, professionalism, and commitment to outstanding service. Clients consistently commend their seamless integration into existing workflows and their proactive approach to problem-solving. Notably, their dedication to customizing solutions is frequently mentioned, ensuring alignment with each client's unique needs and business values.

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Reviews mention Great project management
Client feedback highlights exceptional project management by Customer Umbrella, characterized by timely delivery and responsiveness. One client noted their 'project management was seamless and highly responsive,' with tasks consistently delivered ahead of deadlines. Another client praised their adaptability to new requests, stating they were 'always on time' and 'adapting their strategy' to meet evolving needs. Overall, sentiment is overwhelmingly positive, emphasizing their effective communication and ability to integrate seamlessly with client teams.

Call Center Services for Healthcare Company

5.0 Feb 5, 2024

Regarding project management, Customer Umbrella has performed admirably. Their correspondence, mostly conducted via email, has been prompt and effective. In addition to meeting our needs, the customer service representative's forward-thinking and kind demeanour added to our overall satisfying experience.
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Customer Support for Game Development Company

5.0 Jan 20, 2023

It is very effective. Our communication is great and we are always keeping each other up-to-date regarding any changes within the game project. Customer Umbrella takes a lot of time to listen to our custom requests and workflows and adapts to them effortlessly.
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Dev Staff Augmentation for Salesforce Consultancy

5.0 Jun 24, 2025

Their project management was seamless and highly responsive. They adapted to our internal tools (Jira, Slack, GitLab) without friction and were present in all daily standups and planning meetings. Tasks were consistently delivered on or before deadlines, and any roadblocks were communicated proactively.
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6 of 6 Back Office Outsourcing reviews are 5 stars

$10,000 – $49,000 avg. project cost

Back Office Outsourcing PROJECT HIGHLIGHT

Back Office Support for Photo Organization Platform
5.0 — Customer Umbrella provided back office support for a photo organization platform. The team was responsible for customer service, safety training sessions, and CMS integration for user-generated Read more
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Average Project Cost Breakdown

$10,000 to $49,000 (9) Less than $10,000 (2)

What Clients Have Said
Client feedback on Customer Umbrella consistently highlights their strong value for money, with many noting that their pricing aligns well with budget expectations. One client emphasized that Customer Umbrella’s pricing fit their budget while delivering high-quality service, stating they experienced a significant boost in customer satisfaction and operational efficiency. Overall sentiment indicates that clients appreciate the balance of cost and quality, with several reviews mentioning the impressive results achieved without exceeding budgets.
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United States (5) Cyprus (2) Germany (2) Canada (1) England (1)

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ACS Bulgaria

Not yet reviewed

$5,000+

$50 - $99 / hr

10 - 49

Sofia, Bulgaria

Services provided

15% Back Office Outsourcing

25% Customer Service Outsourcing

20% Staffing +4 services

15% Business Consulting

15% HR Outsourcing

5% IT Managed Services

5% IT Staff Augmentation

ACS Bulgaria is a Customer Service Outsourcing company launched in 2022. The agency provides Customer Service Outsourcing and Staffing.
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DSI

Not yet reviewed

$10,000+

$50 - $99 / hr

2 - 9

Sofia, Bulgaria

Services provided

25% Back Office Outsourcing

25% Custom Software Development

25% Mobile App Development +1 service

25% Web Development

In Sofia, Bulgaria, DSI is a small custom software development company. Their services include Custom Software Development and Back Office Outsourcing.
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Karma Consult

Not yet reviewed

Undisclosed

Undisclosed

2 - 9

Sofia, Bulgaria

Services provided

20% Back Office Outsourcing

20% E-Commerce Development

20% Mobile App Development +2 services

20% Web Design

20% Web Development

Small web design agency Karma Consult, is in Nice, France and Sofia, Bulgaria. Their services include Web Design and Web Development.
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Sofia, Bulgaria

Petko Slaveykov 8, Sofia, Sofija Grad
Sofia, Bulgaria 1000

+33 972.662.920

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Hartona Ltd.

Not yet reviewed

Undisclosed

< $25 / hr

2 - 9

Sofia, Bulgaria

Services provided

20% Back Office Outsourcing

20% BI & Big Data Consulting & SI

20% Graphic Design +2 services

20% Social Media Marketing

20% Web Development

Social media marketing agency Hartona Ltd. Specializes in Social Media Marketing and Graphic Design. They were founded in 2021.
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Purified Marketing

Not yet reviewed

$1,000+

$25 - $49 / hr

2 - 9

Plovdiv, Bulgaria

Services provided

25% Back Office Outsourcing

50% Search Engine Optimization

25% Content Marketing

SEO services firm Purified Marketing is located in Plovdiv, Bulgaria. They offer Search Engine Optimization and Back Office Outsourcing and were founded in 2013.
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At Clutch, we believe trust is the foundation of every business relationship. Our mission is to help buyers make confident, data-backed decisions informed by real client experiences.

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We evaluate service providers using a structured methodology that combines:

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Ability to deliver

Focus

Proven

Market Leaders

Emerging

Niche

Clutch Leaders Matrix

Rollover to see company insights or click a company below for more details.

1 Pontica Solutions

2 Flat Rock Technology

3 MarKam Solutions

4 Mercatus

5 CXG Business Process Outsourcing

6 InfoSource Bulgaria Ltd

7 Callboxs

8 MENA Software

9 OWORKERS

A Clutch Leaders Matrix provides a broad view of the top-performing companies in a particular service or location. Each company featured in a Leaders Matrix is evaluated based on Focus and Ability to Deliver. The size of each circle indicates that company’s size.

By using verified reviews, focused service details, and real project data, the Leaders Matrix highlights companies that consistently deliver and stand out from the rest. Each company’s position is based on how well they focus on a service area and how consistently they deliver results, helping you make informed, confident decisions. Learn More

Focus (x-axis)

Focus accounts for a company’s specialization within a certain service.

Ability to Deliver (y-axis)

Ability to Deliver considers three criteria:

Client feedback and reviews
Work experience and previous projects
Market presence and reputation in the industry

List of the Top 9 Bulgaria Back Office Outsourcing Service Providers

Pontica Solutions

Undisclosed

< $25 / hr

250 - 999

Sofia, Bulgaria

Ability to deliver

30/40.0

15.8/20 Reviews

7.1/10 Clients & Experience

7.1/10 Market Presence

Service focus

30% Back Office Outsourcing

70% Other

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Flat Rock Technology

$25,000+

$50 - $99 / hr

250 - 999

Varna, Bulgaria

Ability to deliver

28.3/40.0

15.4/20 Reviews

7.2/10 Clients & Experience

5.6/10 Market Presence

Service focus

30% Back Office Outsourcing

70% Other

View Profile Visit Website
MarKam Solutions

$1,000+

< $25 / hr

50 - 249

Sofia, Bulgaria

Ability to deliver

32.6/40.0

17.6/20 Reviews

10/10 Clients & Experience

5/10 Market Presence

Service focus

10% Back Office Outsourcing

90% Other

View Profile Visit Website
Mercatus

$5,000+

< $25 / hr

50 - 249

Sofia, Bulgaria

Ability to deliver

32.3/40.0

16.8/20 Reviews

9.8/10 Clients & Experience

5.7/10 Market Presence

Service focus

10% Back Office Outsourcing

90% Other

View Profile Visit Website
CXG Business Process Outsourcing

Undisclosed

Undisclosed

50 - 249

Sofia, Bulgaria

Ability to deliver

25/40.0

16.2/20 Reviews

3.9/10 Clients & Experience

4.9/10 Market Presence

Service focus

21% Back Office Outsourcing

79% Other

View Profile Visit Website
InfoSource Bulgaria Ltd

$1,000+

< $25 / hr

10 - 49

Sofia, Bulgaria

Ability to deliver

25.2/40.0

14.8/20 Reviews

5.5/10 Clients & Experience

4.9/10 Market Presence

Service focus

20% Back Office Outsourcing

80% Other

View Profile Visit Website
Callboxs

$5,000+

< $25 / hr

250 - 999

Burgas, Bulgaria

Ability to deliver

21.4/40.0

16.2/20 Reviews

0.6/10 Clients & Experience

4.6/10 Market Presence

Service focus

20% Back Office Outsourcing

80% Other

View Profile Visit Website
MENA Software

$5,000+

$25 - $49 / hr

10 - 49

Sofia, Bulgaria

Ability to deliver

20.8/40.0

15.6/20 Reviews

0/10 Clients & Experience

5.2/10 Market Presence

Service focus

15% Back Office Outsourcing

85% Other

View Profile Visit Website
OWORKERS

$1,000+

< $25 / hr

250 - 999

Plovdiv, Bulgaria

Ability to deliver

32/40.0

14.6/20 Reviews

10/10 Clients & Experience

7.4/10 Market Presence

Service focus

60% Back Office Outsourcing

40% Other

View Profile Visit Website
ProcessFlows

$1,000+

< $25 / hr

50 - 249

София, Bulgaria

Ability to deliver

5.7/40.0

0/20 Reviews

0/10 Clients & Experience

5.7/10 Market Presence

Service focus

50% Back Office Outsourcing

50% Other

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Flow Logic

Undisclosed

Undisclosed

2 - 9

Sofia, Bulgaria

Ability to deliver

5.3/40.0

0/20 Reviews

0/10 Clients & Experience

5.3/10 Market Presence

Service focus

100% Back Office Outsourcing

View Profile Visit Website
AppGreat

$5,000+

$25 - $49 / hr

50 - 249

Sofia, Bulgaria

Ability to deliver

9.6/40.0

0/20 Reviews

3.7/10 Clients & Experience

6/10 Market Presence

Service focus

10% Back Office Outsourcing

90% Other

View Profile Visit Website
Remotek Ltd

$1,000+

$25 - $49 / hr

2 - 9

Varna, Bulgaria

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

100% Back Office Outsourcing

View Profile Visit Website
ODEON msc - A TTC brand

$1,000+

$25 - $49 / hr

10 - 49

Sofia, Bulgaria

Ability to deliver

8.2/40.0

0/20 Reviews

3.6/10 Clients & Experience

4.6/10 Market Presence

Service focus

10% Back Office Outsourcing

90% Other

View Profile Visit Website
Sixty K Ltd

$50,000+

< $25 / hr

1,000 - 9,999

Sofia, Bulgaria

Ability to deliver

5.3/40.0

0/20 Reviews

0/10 Clients & Experience

5.3/10 Market Presence

Service focus

10% Back Office Outsourcing

90% Other

View Profile Visit Website
Software Group

$10,000+

$50 - $99 / hr

250 - 999

Sofia, Bulgaria

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

30% Back Office Outsourcing

70% Other

View Profile Visit Website
Customer Umbrella

$1,000+

< $25 / hr

250 - 999

Varna, Bulgaria

Ability to deliver

28/40.0

17/20 Reviews

6.1/10 Clients & Experience

4.9/10 Market Presence

Service focus

20% Back Office Outsourcing

80% Other

View Profile Visit Website
ACS Bulgaria

$5,000+

$50 - $99 / hr

10 - 49

Sofia, Bulgaria

Ability to deliver

4.1/40.0

0/20 Reviews

0.1/10 Clients & Experience

4/10 Market Presence

Service focus

15% Back Office Outsourcing

85% Other

View Profile Visit Website
DSI

$10,000+

$50 - $99 / hr

2 - 9

Sofia, Bulgaria

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

25% Back Office Outsourcing

75% Other

View Profile Visit Website
Karma Consult

Undisclosed

Undisclosed

2 - 9

Sofia, Bulgaria

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

20% Back Office Outsourcing

80% Other

View Profile Visit Website
Hartona Ltd.

Undisclosed

< $25 / hr

2 - 9

Sofia, Bulgaria

Ability to deliver

4.6/40.0

0/20 Reviews

0/10 Clients & Experience

4.6/10 Market Presence

Service focus

20% Back Office Outsourcing

80% Other

View Profile Visit Website
MWDN

$25,000+

$25 - $49 / hr

50 - 249

Sofia, Bulgaria

Ability to deliver

33/40.0

20/20 Reviews

7.6/10 Clients & Experience

5.5/10 Market Presence

Service focus

10% Back Office Outsourcing

90% Other

View Profile Visit Website
Purified Marketing

$1,000+

$25 - $49 / hr

2 - 9

Plovdiv, Bulgaria

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

25% Back Office Outsourcing

75% Other

View Profile Visit Website

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