Top Back Office Outsourcing Companies in Bulgaria

Ratings Updated: May 6, 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 Great project management
Clients consistently praised TECHSPEED INC for their exceptional project management capabilities. One client noted their 'highly effective' management, highlighting timely communications and adaptability. Another emphasized their 'tight feedback loop' and proactive problem-solving, which made them feel like an extension of their team. Overall, sentiments reflect a strong appreciation for their organized, responsive, and accountable approach, contributing to the success of various projects without notable areas for improvement.

Lead Gen & Market Research for SaaS Business Mgmt. Provider

5.0 Feb 8, 2023

They did great from a project management standpoint, as they were highly responsive to our feedback and concerns. We typically communicated through email and had video calls when needed.
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Call Center & Data Entry for Healthcare Revenue Cycle Co

5.0 Nov 13, 2024

We had a pretty tight feedback loop on any issues. Since the product was new, bugs came up frequently, and the team was great at raising flags. They were excellent at project management and became an extension of our staff. We communicated using Slack and used Zoom, Google Meet, and GoTo Meeting. Most of our operations happened via Google Sheets.
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Customer Service Outsourcing for Home Care Agency

5.0 Sep 29, 2025

Their project management was highly effective. They had clear timelines, communicated updates regularly, and stayed on schedule. All deliverables were completed on time or ahead of deadline. They were also very responsive—any time I had a question or needed support, they got back to me quickly and made necessary adjustments without delay. Their project management was organized and reliable. What stood out most was their proactive communication and customer-first mindset.
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2 of 2 reviews are 5 stars

Unknown avg. project cost

Reviewed 2 times in the past 6 months
Recent reviews for TECHSPEED INC highlight their exceptional data management and project execution capabilities. Clients praised their professionalism, responsiveness, and ability to deliver accurate information swiftly. One client noted their impressive handling of WordPress data, enhancing both user experience and SEO value. Another commended the volume and speed of election-related data they provided. Overall, feedback indicates high satisfaction, with no significant areas for improvement identified.
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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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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 Results-oriented
Clients have consistently highlighted Growth Hub's results-oriented approach, emphasizing their effectiveness in driving growth. One client noted the booking of over 150 meetings within 10 months, attributing this success to Growth Hub's deep understanding of their business and personalized outreach strategies. The collaborative workflow and minimal required input from the client further underscore their commitment to delivering tangible outcomes, with no significant areas for improvement identified.

Appointment Setting for Financial Technology Company

5.0 Sep 21, 2022

Growth Hub have booked over 150 meetings for us in the last 10 months. Their ability to understand us and our clients is impressive and to put an effective strategy in place to get the job done.
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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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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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Industry Experience

Big Outsource has demonstrated notable expertise across various industries, including Information Technology, eCommerce, Healthcare, Financial Services, and Consumer Products. Clients commend their ability to enhance operational efficiency, improve customer service response times, and maintain a high standard of quality. Overall sentiments reflect a strong alignment of values, professionalism, and effective communication, making them a suitable partner for businesses seeking reliable support in these sectors.
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Healthcare Software Financial services Chemicals & Biotechnology Other industries Wellness & Fitness Beauty Education Medical Real estate Retail Telecommunications Beauty & Cosmetics Arts, entertainment & music Legal Supply Chain, Logistics, and Transport Consulting Consumer Products Information technology eCommerce

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United States (19) Canada (2) Australia (1) India (1) Serbia (1) Switzerland (1) England (1)

This provider is fluent in 1 language:

English

This provider is available in 8 time zones:

Central European Time (CET)

Central Standard Time (CST)

Eastern Standard Time (EST)

Pacific Standard Time (PST)

Australia Central Time (ACT)

Australia Eastern Time (AET)

Mountain Standard Time (MST)

Singapore Standard Time (SGT)

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MarKam Solutions

5.0 9 reviews

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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 Knowledgeable
Clients consistently highlight MarKam Solutions' extensive industry knowledge and expertise as a significant asset. One client noted their 'in-depth industry knowledge, data-driven approach, and adaptability,' while another emphasized their 'extensive knowledge of this industry' and the valuable insights provided. Overall, the sentiment regarding their knowledgeability is overwhelmingly positive, with multiple clients expressing satisfaction with the quality of talent and strategic insights offered throughout their collaborations.

Call Center Services for Logistics & Supply Chain Company

5.0 Nov 7, 2024

Their in-depth industry knowledge, data-driven approach, and adaptability to the business's ever-changing needs were impressive. They were very structured and detail-oriented in their approach, always making data-driven decisions to support the needs of the business. Communication was professional and on point and they were very adaptive and responsive.
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Call Center Services for Furniture Manufacturer

5.0 Nov 1, 2024

Their in-depth knowledge of the latest technology and customer service frameworks impressed us. All project deliverables were met in professional and timely manner. Increased customer attention and number of returning customers.
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Call Center Services for Auto Transport Broker

5.0 Mar 19, 2025

Their extensive knowledge of this industry and not only the quality of the folks they have brought to our sales and dispatch teams but also the insights they bring to our team.
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Sales Outsourcing & Lead Gen for Advertising Account Co

5.0 Feb 13, 2025

MarKam Solutions' in-depth process knowledge and technology stack awareness were impressive. 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.
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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 client feedback for MarKam Solutions highlights their exceptional project management and flexibility. Clients praised their proactive communication and ability to tailor solutions to meet specific needs, with one noting a 50% increase in lead generation due to their strategic approach. The overall sentiment is highly positive, with clients appreciating the company's commitment to quality and timely delivery. No significant areas for improvement were identified, reinforcing their reputation as a reliable partner.
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Industry Experience

MarKam Solutions has demonstrated expertise across various sectors, including Advertising & Marketing, Supply Chain & Logistics, Manufacturing, Transportation, and Information Technology. Clients commend their ability to enhance operational efficiency, boost sales, and improve customer satisfaction. The overall sentiment is highly positive, particularly within Supply Chain & Logistics, where they provided significant cost reductions and revenue growth. Their strengths lie in adaptability, effective communication, and a strong understanding of industry-specific needs, making them a suitable partner across these diverse fields.
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Advertising & marketing Information technology Supply Chain, Logistics, and Transport Manufacturing Transportation

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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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Pontica Solutions

4.7 3 reviews
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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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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France (2) Switzerland (1)

This provider is fluent in 5 languages:

English

French

German

Italian

Bulgarian

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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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Reviews mention Patient
The sentiment regarding patience in Mercatus' service is generally positive. Clients appreciate the need for patience in the initial stages of lead generation campaigns, acknowledging that results may take time to materialize. One client emphasized, "Be patient during the first month because all campaigns need some time," indicating a realistic expectation set by Mercatus. Overall, clients commend the company's communication and responsiveness, which fosters a supportive environment during the campaign initiation phase.

Lead Generation Services for Cloud-Based Solution

5.0 Sep 19, 2024

Focus on one or two markets for lead generation. Be patient during the first month because all campaigns need some time. Mercatus will save you time; they're in charge of the campaigns, and I’m happy I don’t spend time on them.
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1 of 1 reviews is 5 stars

$50,000 – $199,999 avg. project cost

Reviewed 1 time in the past 6 months
In recent reviews, clients have expressed satisfaction with Mercatus's lead generation and outreach services, particularly noting their effectiveness in the Bulgarian market. A client from Leadership Support highlighted the successful appointment settings and increased product visibility, attributing some purchase orders to Mercatus's efforts. However, there are suggestions for improvement, particularly regarding outreach strategies in the UK market. Overall, the sentiment is positive, with clients appreciating the proactive communication and project management.
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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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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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Reviews mention High-quality work
Clients consistently highlight OWORKERS' high-quality work, particularly their effective problem-solving abilities and quick decision-making. One client praised their capacity to set up a BPO team within three weeks, emphasizing their impressive responsiveness. Another noted the significant improvement in monitoring coverage and user experience for their live streaming app, attributing this success to OWORKERS' dedication and ownership. Overall, feedback indicates strong satisfaction with the quality of services provided.

Application Management Services for Live Streaming Platform

5.0 May 20, 2020

The quality of services experienced by users has increased as a result of their efforts. Their commitment to doing their best with ownership was particularly noteworthy.
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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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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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Average Project Cost Breakdown

$50,000 to $199,999 (4) $10,000 to $49,000 (2) $200,000 to $999,999 (2) Less than $10,000 (1)

What Clients Have Said
Flat Rock Technology is perceived as offering good value for money, with clients frequently highlighting their cost-effectiveness and the quality of service provided. One client noted they selected Flat Rock for their 'good value for cost,' while another appreciated the 'high-quality' work despite a fluctuating payment model. Overall, clients express satisfaction with their investment, indicating that Flat Rock delivers on time and meets project requirements, suggesting a positive sentiment regarding cost and value.
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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 High-quality work
Clients commend InfoSource Bulgaria Ltd for delivering high-quality work consistently. One client highlighted their impressive focus on customer satisfaction, noting the company's responsiveness and fair pricing. The COO of FD Mediagroup remarked on the reliable support in data analysis, stating that InfoSource's project management was always timely and proactive. Overall, the sentiment reflects strong approval of the company's commitment to quality and client needs.

Financial Services for Financial & Economic Media Company

5.0 Sep 14, 2023

We have always been very happy to work with Infosource for different reasons: They focus on customer happiness, high quality for a fair price, very responsive, easygoing and great to work with.
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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 Timely
Callbox has received positive feedback regarding their timeliness in responding to customer inquiries. Clients noted a significant reduction in complaints about unanswered calls and emails, highlighting their quick adaptation to business needs. One client specifically praised the speed of response on their Facebook page chat, stating that clients expressed satisfaction with the promptness. Overall, the sentiment reflects strong approval of Callbox's timely service delivery.

Call Center Services for Beach Resort

5.0 Sep 23, 2021

We no longer have customers who complain that we don't pick up the phone or that no one answers their emails. Also, several clients shared that they are satisfied with the speed of response in the chat on our Facebook page. They very quickly adapt to our requirements and way of working.
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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 Reliable
Clients consistently highlight MENA Software's reliability as a key strength. One client noted their need for a dependable partner for a platform development project, emphasizing that MENA Software delivered a reliable solution that enhanced customer service. Additionally, effective project management and a dedicated team were praised, contributing to the overall positive sentiment regarding the company's reliability in delivering high-quality results.

Platform Development for a Digital Design Agency

5.0 Dec 18, 2018

They provided a reliable solution and added value to how we service our customers. They had highly effective project management. The team worked fast and was cost-effective.
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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% Call Center Services

20% IT Managed Services +4 services

15% Customer Service Outsourcing

10% IT Staff Augmentation

10% Staffing

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 Unique expertise
Client feedback highlights Customer Umbrella's unique expertise in enhancing customer support operations for a gambling company. The CEO noted their team's impressive knowledge of the sports betting platform and their seamless integration into existing workflows. The commitment to outstanding service and proactive problem-solving was particularly commendable, leading to improved efficiency and positive user feedback. Overall, the sentiment reflects high satisfaction with their specialized skills and professionalism, contributing significantly to the project's success.

Customer Support Services for Sports Betting & Gambling Firm

5.0 Mar 3, 2024

The success of our partnership was greatly influenced by the truly impressive expertise and professionalism of their team. Their steadfast commitment to providing outstanding service was what made them most memorable. They constantly went above and beyond to make sure that our customers had a great and memorable experience with us.
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Industry Experience

Customer Umbrella demonstrates significant expertise across various industries, including Software, Gambling, Design, Manufacturing, Gaming, Retail, Healthcare, and Utilities. Their strengths lie in enhancing operational efficiency, customer support, and seamless integration with client teams. Reviews reflect a positive sentiment regarding their adaptability, responsiveness, and commitment to exceptional service. Clients in the Gaming and Healthcare sectors particularly commend their tailored solutions and proactive communication, making them a strong fit for businesses seeking reliable support in customer-centric environments.
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Software Gambling Design Manufacturing Gaming Retail Healthcare Utilities

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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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More responsive than most other service providers

Customer Umbrella 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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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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Perpetum Outstaffing

Not yet reviewed

$5,000+

Undisclosed

10 - 49

Sofia, Bulgaria

Services provided

10% Back Office Outsourcing

40% IT Staff Augmentation

20% Employer of Record (EOR) Services +2 services

20% Recruiting

10% Staffing

Perpetum Outstaffing is an IT staff augmentation company. Based in Sofia, Bulgaria, the team provides IT staff augmentation and Recruiting.
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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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Why Trust Clutch

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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Market presence
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This data powers tools like the Leaders Matrix, which helps you compare agencies directly. Our research team curates rankings by weighing verified reviews most heavily, so the most trusted and experienced providers rise to the top.

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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

29.8/40.0

15.6/20 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

28.1/40.0

15.2/20 Reviews

7.2/10 Clients & Experience

5.6/10 Market Presence

Service focus

30% Back Office Outsourcing

70% Other

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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Perpetum Outstaffing

$5,000+

Undisclosed

10 - 49

Sofia, Bulgaria

Ability to deliver

4.6/40.0

0/20 Reviews

0/10 Clients & Experience

4.6/10 Market Presence

Service focus

10% Back Office Outsourcing

90% Other

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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

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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

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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

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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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