Top Software Testing Companies in Sofia

Ratings Updated: July 9, 2026

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Featured

What are Featured Providers?
QA Wolf

4.9 64 reviews
Premier Verified

$5,000+

Undisclosed

50 - 249

Serves Sofia, Bulgaria

Services provided

100% Application Testing

QA Wolf, a specialized company in QA Testing and Software Quality Assurance services, consistently receives positive feedback for its robust automation capabilities and responsive support. Approximately 85% of reviews highlight their ability to enhance automated test coverage, while 70% commend their professional and collaborative project management. Clients appreciate their seamless integration into existing workflows and rapid response to issues, making them a reliable partner in Application Quality Assurance.

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48 of 62 Application Testing reviews are 5 stars

6 new reviews for Application Testing in past 6 months

$10,000 – $49,000 avg. project cost

Application Testing PROJECT HIGHLIGHT

Application Testing for Financial Services Company
5.0 — QA Wolf is providing application testing services to a financial services company. The team defines and builds out the testing environment as well as runs and oversees the validation Read more
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Industry Experience

QA Wolf has received positive feedback across multiple industries, including financial services, arts and entertainment, insurance, and telecommunications. Clients commend their expertise in automation and end-to-end testing, highlighting strengths in responsiveness, project management, and the ability to integrate seamlessly with client workflows. The overall sentiment is favorable, with notable success in enhancing test coverage, reducing manual testing efforts, and improving product quality. Companies seeking QA services in these sectors can benefit from QA Wolf's robust testing solutions and commitment to quality.
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Software Logistics & Supply Chain Other industries Telecommunications Gambling Manufacturing Arts, entertainment & music Automotive Advertising & marketing Education Healthcare Media Consulting eCommerce Information technology Agriculture Financial services Engineering Insurance

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Average Project Cost Breakdown

$50,000 to $199,999 (11) $10,000 to $49,000 (3) Less than $10,000 (1) $200,000 to $999,999 (1)

What Clients Have Said
QA Wolf provides strong value for money, as highlighted by clients who commend their cost-effective solutions and alignment with budgetary constraints. For instance, a client noted a significant reduction in manual testing efforts, allowing their team to focus on development. Overall, feedback suggests a positive sentiment regarding pricing, with clients appreciating the high-quality service relative to the investment, although some expressed a desire for more flexible pricing structures.
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United States (57) Canada (2) Australia (1) Colombia (1)

This provider is fluent in 1 language:

English

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Simform

4.8 86 reviews
Premier Verified

$25,000+

$25 - $49 / hr

1,000 - 9,999

Serves Sofia, Bulgaria

Services provided

20% AI Development

20% Cloud Consulting & SI

10% CRM Consulting and SI +5 services

10% Custom Software Development

10% E-Commerce Development

10% ERP Consulting and SI

10% Enterprise App Modernization

10% Mobile App Development

Simform is a versatile software development company specializing in App Testing, QA Testing, and Software Quality Assurance services. Clients consistently highlight their timely delivery, effective communication, and commitment to project success. Nearly all reviews mention their strong project management and adaptability to client needs, with 100% praising their commitment and technical expertise.

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Reviews mention Passionate about their work
Clients consistently highlight Simform's passion for their work, noting their integration into company culture and commitment to customer success. One client emphasized that the Simform team is 'passionate about our product' and described their developers as 'cooperative, independent, and fast learners.' Overall, the sentiment reflects a strong appreciation for Simform's dedication and the positive impact this has on project outcomes.

Staff Augmentation for Software Company

5.0 May 10, 2023

Together with the customer success team of Simform and the talents provided to us, they are cooperative, independent and fast learners. They are also passionate about our product and helps us drive customer success.
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3 of 3 reviews are 5 stars

$50,000 – $199,999 avg. project cost

Reviewed 3 times in the past 6 months
Recent client feedback for Simform highlights a strong emphasis on professionalism, responsiveness, and collaboration. Clients appreciate the team's ability to understand project requirements deeply, as demonstrated by one client's remark on their strategic partnership approach. Another client noted timely delivery and adherence to budget constraints. However, a recurring suggestion for improvement includes enhancing end-user documentation and knowledge transfer. Overall, sentiment is highly positive, with clients valuing Simform's commitment to building sustainable solutions.
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Average Project Cost Breakdown

$50,000 to $199,999 (21) $10,000 to $49,000 (16) $200,000 to $999,999 (14) Less than $10,000 (1)

What Clients Have Said
Client feedback on Simform highlights a strong perception of value for money, with many noting that their pricing aligns well with project budgets. Clients appreciate the quality of work delivered, stating that Simform's services provide good value for the costs incurred. For instance, one client mentioned that Simform's pricing fit their budget while delivering high-quality development. Overall, the sentiment is positive, with clients feeling that they receive professional services that meet or exceed expectations, although some noted the need for improved documentation in certain areas.
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United States (50) Canada (6) England (4) Germany (4) United Arab Emirates (2) Switzerland (2) Netherlands (1) Norway (1) Singapore (1) Sweden (1) Israel (1) Ireland (1) Hungary (1) Finland (1)

This provider is fluent in 1 language:

English

This provider is available in 4 time zones:

Central Standard Time (CST)

Eastern Standard Time (EST)

Pacific Standard Time (PST)

Mountain Standard Time (MST)

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QualityLogic

4.9 32 reviews
Premier Verified

$5,000+

$25 - $49 / hr

50 - 249

Serves Sofia, Bulgaria

Services provided

100% Application Testing

QualityLogic is a reputable company specializing in Software Quality Assurance and Testing Services, including App Testing and QA Testing. According to client reviews, QualityLogic is praised for their excellent communication and detailed documentation, with approximately 90% of responses highlighting their professional project management and adherence to budget. Clients frequently commend their flexibility and the successful implementation of testing protocols, underscoring QualityLogic's ability to enhance software quality and mitigate risks effectively.

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Reviews mention Detail-oriented
QualityLogic has consistently received positive feedback regarding their detail-oriented approach. Clients highlighted their meticulous documentation of test cases and proactive communication, which facilitated effective collaboration. For instance, one client noted that QualityLogic's test cases were as detailed as they would have created themselves, significantly reducing bug escape rates. Another client appreciated their thoroughness in identifying bugs, stating that their attention to detail made the process smoother and more efficient. Overall, the sentiment reflects a high level of satisfaction with QualityLogic's commitment to detail.

Manual QA Testing for Robotics Company

5.0 Sep 20, 2022

QualityLogic was a very collaborative, communicative partner who paid close attention to detail. They were kind and dependable, which made the process easier for us. We had daily stand-ups via Google Meet and used Jira to manage the project.
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QA for Assessment Provider for School Districts

5.0 Sep 24, 2019

This is a unique collaboration for us, but their flexibility, experience, attention to detail, and communication all stand out. They're very communicative, and their status reports have the perfect amount of information.
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Application Testing for Mobile Content Creation App

5.0 Sep 4, 2019

At first, our development team thought QualityLogic was overly picky or going too far into detail, but when the first engagement ended, our team asked for them to come back immediately because they knew how much value they added. I think that showed that the level of detail they provide makes things easier for all of us. They do such a robust job of testing different devices and browsers. Every ticket has a video or a screenshot associated with it. They’re saving us mental energy, effort, and time.
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Quality Testing for Transportation App

5.0 Apr 3, 2019

QualityLogic integrated seamlessly with our business and provided high-quality services. Their attention to detail was notable. The high-energy team was engaged throughout the partnership.
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QA Support for OTT Ad Tech Firm

5.0 Jun 19, 2020

QualityLogic also gives detailed descriptions of how they found the issue and where, along with how to reproduce it. They have a very good process for that. We discuss what should be tested during the week, and they give us daily updates on any issues they find and report them in Jira.
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20 of 22 Application Testing reviews are 5 stars

$50,000 – $199,999 avg. project cost

Application Testing PROJECT HIGHLIGHT

Application Testing & QA for Cybersecurity Company
5.0 — QualityLogic provided QA services for a cybersecurity company. Their work included creating automation tests, test cases, and test plans, as well as executing those test cases and plans as manual QA Read more
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More responsive than most other service providers

QualityLogic 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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United States (26) Canada (1) Singapore (1) Spain (1)

This provider is fluent in 1 language:

English

This provider is available in 3 time zones:

Central Standard Time (CST)

Pacific Standard Time (PST)

Mountain Standard Time (MST)

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Cleverix - Software Engineering

5.0 7 reviews

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Premier Verified

$5,000+

$25 - $49 / hr

10 - 49

Sofia, Bulgaria

Services provided

40% Application Testing

30% Mobile App Development

15% UX/UI Design +1 service

15% Web Development

Cleverix - Software Engineering is a specialized software testing company, offering comprehensive services like App Testing, QA Testing, and Software Quality Assurance. Across reviews, 100% of clients praised their technical expertise, responsiveness, and ability to integrate into teams seamlessly. Clients noted significant improvements in product quality, testing coverage, and release velocity, with no reported areas for improvement.

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6 of 6 Application Testing reviews are 5 stars

3 new reviews for Application Testing in past 6 months

$10,000 – $49,000 avg. project cost

Application Testing PROJECT HIGHLIGHT

Application Testing for Academic Research Sharing Website
5.0 — Cleverix - Software Engineering tested an academic research sharing website's functionality. The team provided a detailed report with recommendations. Read more
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Average Project Cost Breakdown

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

What Clients Have Said
Clients consistently commend Cleverix for their competitive pricing and excellent value for money. One client noted that their pricing fit the budget while providing great cultural alignment and value for cost. Another highlighted their ability to deliver high-quality services on time, often exceeding expectations. Overall, sentiment is overwhelmingly positive, with clients expressing satisfaction with the cost-effectiveness of their engagements and the quality of deliverables received.
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More responsive than most other service providers

Cleverix - Software Engineering 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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$2,000 Essential QA $5,000 Enhanced QA $8,000

QA Managed Service
Cleverix’s QAaaS model delivers end-to-end QA services tailored to your needs. Our ISTQB-certified QA engineers match your technical requirements, handling sprint-based testing to complex automation. Prices are indicative and may vary. A customized offer will be provided following the free discovery phase to align with your specific needs.
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Scalefocus

4.9 38 reviews
Premier Verified

$1,000+

$50 - $99 / hr

250 - 999

Sofia, Bulgaria

Services provided

10% Application Testing

25% Custom Software Development

20% AI Development +3 services

20% Mobile App Development

15% Web Development

10% IT Managed Services

Scalefocus is a comprehensive software development company providing services such as backend, frontend, and UX/UI design. Their reviews indicate a strong cultural fit, professional project management, and a collaborative approach. Approximately 90% of reviews highlight their adaptability, technical excellence, and ability to integrate seamlessly with clients' internal teams, while around 70% note their proactive communication and commitment to delivering high-quality solutions.

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Reviews mention Innovative
Scalefocus received positive feedback regarding their innovative solutions, particularly highlighted by a client who praised the 'LLM-as-a-Judge' concept, which introduced a data-driven evaluation methodology for AI models. This innovation provided lasting value by enabling a repeatable process for model upgrades. Another client noted Scalefocus's ability to revitalize a legacy mobile app, incorporating smart functionalities and enhancing user experience, which resulted in a significant increase in user engagement and revenue. Overall, clients expressed strong satisfaction with Scalefocus's innovative approach and effective project management.

Mobile App Dev & Design for Gambling Company

4.5 Dec 21, 2023

What stands out most impressively about this company is their exceptional self-motivation, dedication, and creativity. They consistently demonstrated an ability to devise solutions that were not only effective but also innovative and efficient. Additionally, their project managers, who exhibit a deep investment in our product, ensured swift and clear communication.
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AI Module Modernization for Risk Management Firm

5.0 Mar 9, 2026

What truly stood out was the LLM-as-a-Judge concept. Rather than simply building an integration, Scalefocus has introduced a genuinely innovative evaluation methodology that gives us lasting value. The platform doesn’t just tell us which model is better – it explains why, scores each dimension of incident extraction, and even factors in cost. This turned what could have been a one-time model swap into a repeatable, data-driven process we can use every time a new model is released.
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2 of 2 reviews are 5 stars

$200,000 – $999,999 avg. project cost

Reviewed 2 times in the past 6 months
Recent reviews of Scalefocus highlight their strong technical capabilities and collaborative approach. Clients commend their ability to deliver high-quality solutions, such as a modernized learning platform and an innovative AI evaluation framework. The teams demonstrated effective communication and adaptability, ensuring alignment with project goals. Notably, clients reported significant improvements in operational efficiency and user experience. Overall, the sentiment is overwhelmingly positive, with clients appreciating Scalefocus's cultural fit and commitment to delivering results.
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Industry Experience

Scalefocus has demonstrated expertise across various industries including Education, Business Services, Energy & Natural Resources, Automotive, Gaming, Gambling, and Telecommunications. Positive feedback highlights their strong technical capabilities, agile project management, and effective communication. Clients praised their ability to integrate seamlessly with internal teams, deliver high-quality solutions, and enhance user experience. Overall sentiment is highly favorable, particularly in Education and Energy sectors, suggesting Scalefocus is well-suited for projects requiring robust software solutions and collaborative partnerships.
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Energy & natural resources Automotive Gaming Gambling Transportation Consulting IT Services Information technology Healthcare Manufacturing Government Media Other Industry Hospitality & leisure Software Nonprofit Education Business services Advertising & marketing Telecommunications

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More responsive than most other service providers

Scalefocus 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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Featured

What are Featured Providers?

BetterQA

4.9 64 reviews
Premier Verified

$5,000+

Undisclosed

50 - 249

Serves Sofia, Bulgaria

Services provided

80% Application Testing

10% Application Management & Support

10% Other IT Consulting and SI

BetterQA is a specialized company offering Software Quality Assurance and Application Testing services. They have received overwhelmingly positive feedback, with clients highlighting their expertise, flexibility, and integration into client teams. Notably, 85% of reviews emphasize their exceptional project management and ability to adapt to client needs. Their services consistently result in improved software quality, reduced bugs, and efficient testing processes.

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36 of 40 Application Testing reviews are 5 stars

$10,000 – $49,000 avg. project cost

Application Testing PROJECT HIGHLIGHT

QA/Software Testing for Security/Defense Consultancy
4.5 — BetterQA provided QA and software testing services for a security and defense consultancy. The team created a QA strategy and test cases, automated test scripts, and conducted performance and Read more
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Industry Experience

BetterQA has demonstrated substantial expertise across various industries, including Construction, Real Estate, Financial Services, eCommerce, and Media. They are praised for their comprehensive QA solutions, proactive communication, and ability to deliver high-quality results on time. Clients consistently noted improvements in efficiency, reduced bugs, and enhanced user experiences. With a strong focus on collaboration and tailored strategies, BetterQA proves to be a valuable partner for organizations seeking robust software testing and quality assurance across diverse sectors.
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Real estate Construction Advertising & marketing Human Resources Financial services Media Software Fitness Consulting Food & Beverages Chemicals & Biotechnology Retail Logistics & Supply Chain Engineering Wellness & Fitness Healthcare Banks IT Services eCommerce Other Industry Information technology

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United States (18) Romania (8) England (4) Germany (4) Switzerland (3) France (2) Kenya (1) Belgium (1) Russia (1) Singapore (1) Sweden (1) India (1) United Arab Emirates (1) Hong Kong (1) Canada (1)

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QAlified

4.9 21 reviews
Verified

Undisclosed

$25 - $49 / hr

10 - 49

Serves Sofia, Bulgaria

Services provided

100% Application Testing

QAlified is a distinguished software testing company specializing in Application Quality Assurance, Software QA, and Testing Services. With 100% positive feedback across reviews, clients commend their reliability, precision, and effective project management. Notably, 85% of reviewers highlight their excellent communication and adaptability, while 70% appreciate the alignment with company values and culture.

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1 of 1 reviews is 5 stars

1 new review for Application Testing services

Unknown avg. project cost

Reviewed 1 time in the past 6 months
In the last six months, QAlified has received positive feedback for their quality assurance services, highlighting their strong project management and adaptability. Clients noted a significant reduction in high-severity issues post-release and praised the team's transparency and effective communication. One client specifically appreciated QAlified's cultural alignment with their team, describing them as a true partner. Opportunities for further improvement were identified, particularly in early automation integration, but overall sentiment remains highly favorable.
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14 of 15 Application Testing reviews are 5 stars

1 new review for Application Testing in past 6 months

$50,000 – $199,999 avg. project cost

Application Testing PROJECT HIGHLIGHT

App Testing for Content Creation Platform
5.0 — QAlified provides ongoing app testing and automation services for a content creation platform. The team builds and maintains test cases and documents test case failures. Read more
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Average Project Cost Breakdown

Less than $10,000 (3) $10,000 to $49,000 (3) $50,000 to $199,999 (3) $200,000 to $999,999 (2) $1,000,000 to $9,999,999 (1)

What Clients Have Said
Clients consistently highlight QAlified's competitive pricing and excellent value for money. Feedback from multiple reviews indicates that the pricing fits budgets while delivering high-quality services. For instance, one client noted, 'Good value for cost,' while another emphasized that QAlified's services allowed for a '25% to 35% reduction in bugs.' Overall, clients express satisfaction with the financial investment relative to the quality and effectiveness of the outcomes achieved.
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United States (9) Uruguay (7) Argentina (1) Germany (1)

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Reactive Hive Ltd

5.0 11 reviews

$1,000+

$25 - $49 / hr

10 - 49

Sofia, Bulgaria

Services provided

100% Application Testing

Reactive Hive Ltd is a company specializing in Application Testing and Software Quality Assurance, with a strong focus on e-commerce platforms like Magento and Adobe Commerce. Across their reviews, 100% of clients commend their efficient integration and thorough QA processes, highlighting their ability to seamlessly slot into existing workflows and rapidly identify and resolve issues. Their communication and expertise are universally praised, driving high client satisfaction and project success.

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4 of 4 reviews are 5 stars

4 new reviews for Application Testing services

Unknown avg. project cost

Reviewed 4 times in the past 6 months
In recent reviews, Reactive Hive Ltd received consistently positive feedback for their QA support, with clients noting their seamless integration into existing teams and strong understanding of e-commerce platforms. One client highlighted their efficiency in scaling resources, while another praised the thoroughness of their testing, resulting in no customer complaints post-release. Overall, the sentiment is overwhelmingly favorable, with no reported areas for improvement.
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Average Project Cost Breakdown

$10,000 to $49,000 (2)

What Clients Have Said
Clients consistently highlight Reactive Hive Ltd's impressive value for money, noting their affordable pricing and high-quality deliverables. For instance, one client emphasized that Reactive Hive provided 'great value for cost' and was 'absolutely affordable for even small startups.' Another client praised their ability to deliver thorough testing and bug reports, contributing to improved project outcomes without exceeding budget constraints. Overall, the sentiment reflects satisfaction with both the cost and the quality of service provided.
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Ukraine (2) United States (2) England (2) Australia (1) Bulgaria (1) Germany (1) Netherlands (1)

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1 of 1 Sofia-based review is 5 stars

1 Sofia-based review for Application Testing in past 6 months

Unknown avg. project cost for Application Testing services in Sofia

Application Testing project highlight

E-Commerce Software Testing for Furtniture Marketplace
5.0 — Reactive Hive was hired by a furniture marketplace to support their manual testing efforts. They're tasked with documenting new features, doing automated tests, and assisting in field tech issue Read more
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App Streams Ltd

5.0 9 reviews

$25,000+

$25 - $49 / hr

10 - 49

Sofia, Bulgaria

Services provided

15% Application Testing

30% Web Development

25% Mobile App Development +3 services

10% AI Development

10% IoT Development

10% UX/UI Design

App Streams Ltd is a software development and application testing company renowned for its expertise in QA Testing, Software Quality Assurance, and App Quality Testing. With positive feedback from 100% of reviewers, they are praised for their rapid response times, deep understanding of client needs, and ability to deliver high-quality, bug-free solutions promptly. Their exceptional project management skills and strong team culture are consistently highlighted.

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2 of 2 reviews are 5 stars

2 new reviews for Application Testing services

$50,000 – $199,999 avg. project cost

Reviewed 2 times in the past 6 months
Recent reviews of App Streams Ltd reflect a highly positive sentiment, highlighting their exceptional responsiveness and effective collaboration. Clients praised their ability to meet tight deadlines and deliver high-quality work. Specific feedback includes their success in stabilizing critical applications and exceeding expectations in product design and development. One client noted the team's dedication, often working late to ensure timely project completions. Overall, App Streams Ltd is recognized as a reliable partner, with no significant areas for improvement identified.
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More responsive than most other service providers

App Streams Ltd 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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Bulgaria (4) United States (2) England (2)

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Review Rating from Clients

5.0/5.0

Quality

5.0

Schedule

5.0

Cost

5.0

Willing to Refer

4.5

Local clients praise App Streams Ltd for their responsiveness and clear communication in developing web and mobile systems, including a successful e-bike fleet management platform. They emphasize professionalism and a good culture fit, highlighting the company's ability to deliver on time and meet project goals.
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Wiser Technology

4.9 42 reviews

$25,000+

$50 - $99 / hr

250 - 999

Sofia, Bulgaria

Services provided

10% Application Testing

70% Custom Software Development

20% IT Managed Services

Wiser Technology is a company specializing in Testing Services, including Software Testing and Software Quality Assurance. Reviews indicate a high level of satisfaction with their services, with 100% of feedback highlighting their skilled and dedicated QA testers and efficient project management. Clients appreciate their seamless integration and commitment to meeting project timelines.

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Reviews mention Timely
Overall sentiment regarding timeliness in client feedback for ITIDO is highly positive. Clients consistently noted that ITIDO delivered projects on time, with one client stating they completed their app a month ahead of schedule. Another emphasized the team's strong commitment to timelines and proactive communication, ensuring that all tasks were addressed promptly. This dedication to timely delivery not only met but often exceeded client expectations, contributing to a seamless and satisfactory project experience.

Software & App Dev for Mobile Network Optimization Company

5.0 Dec 13, 2023

The project management was carried out using a Kanban board, where the ITIDO resource integrated into our production cycle. They delivered on-time high-quality software and were flexible in accommodating our product needs. ITIDO can react very quickly to our requests.
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Web & Mobile App Dev for Media Company

5.0 Jun 13, 2022

The solutions were delivered on time with excellent quality. Any issues arising were addressed with the needed focus, ensuring quick and effective resolution. Their project management style was excellent, fast, and supportive.
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Custom Software Dev for Financial Services Company

4.5 Jun 6, 2022

They deliver the projects in a timely and sound manner, and the products work efficiently. ITIDO tackled technical issues and delivered on time, fulfilling tasks in line with the budget. They have regular calls and video calls to keep track of the project.
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Dev Staff Augmentation for Software Development Company

5.0 Mar 14, 2022

We work with our end customer on a scrum basis, and so far, the deliveries are being produced according to plan. ITIDO meets deadlines and is open to receiving and sharing feedback for improvement. There is good collaboration between us.
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IT Staff Augmentation for Software Dev Company

5.0 Dec 15, 2021

ITIDO's expertise enabled us to complete the project on time; everything was perfect. They were a cooperative team that seamlessly integrated themselves into our processes. We communicated via Microsoft Teams and relied on Jira for project management.
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Industry Experience

Wiser Technology has demonstrated expertise across multiple industries, including telecommunications, healthcare, insurance, and information technology. Clients commend their strong technical skills, innovative problem-solving, and adept project management, leading to successful outcomes and on-time deliverables. Overall sentiment is overwhelmingly positive, as they are recognized for their adaptability and ability to understand client needs, making them a strong candidate for various sectors seeking reliable development and digital transformation services.
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Other industries Telecommunications Information technology Real estate Media Financial services Business services Education Advertising & marketing Energy & natural resources

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Bulgaria (20) Germany (5) United States (4) Finland (3) Canada (2) Switzerland (2) England (2) Ireland (1) Norway (1) Singapore (1) United Arab Emirates (1)

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Review Rating from Clients

5.0/5.0

Quality

5.0

Schedule

4.9

Cost

4.7

Willing to Refer

5.0

Local clients praise Wiser Technology for their expertise in diverse projects, including web apps, digital transformation, and complex IoT platforms. They emphasize the company's ability to deliver scalable, high-quality solutions on time, with effective communication and a collaborative approach that meets demanding business needs.
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Stanga

4.8 9 reviews

$5,000+

$50 - $99 / hr

250 - 999

Sofia, Bulgaria

Services provided

10% Application Testing

20% Custom Software Development

15% IT Staff Augmentation +5 services

15% Web Development

10% CRM Consulting and SI

10% Cloud Consulting & SI

10% Cybersecurity

10% Mobile App Development

Stanga is a software development company specializing in full-stack development, mobile app creation, and cloud technologies. Reviews praise their technical expertise, efficient project management, and proactive problem-solving, with 100% positive feedback highlighting their exceptional communication and commitment to quality. Their adaptability and seamless team integration were frequently noted, making them a reliable partner in Software QA and Application Testing services.

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Industry Experience

Stanga1 has demonstrated expertise across various industries, including Software, Healthcare, Automotive, and Hospitality. In Software, they excelled in full-stack development and data architecture, leading to enhanced operational efficiency and user adoption. Their responsiveness and technical accuracy in Healthcare were noted, while in Automotive, they provided thorough technical audits and quality assurance. In Hospitality, their staff augmentation services facilitated timely project delivery and integration. Overall, Stanga1 is recognized for their technical proficiency, adaptability, and effective communication, making them a strong candidate for projects in these sectors.
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Software Healthcare Automotive Hospitality & leisure

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Average Project Cost Breakdown

What Clients Have Said
Stanga1 has received consistent feedback highlighting their strong value for cost. Clients have noted their 'good value for cost' in multiple reviews, emphasizing that their services provide tangible benefits, including increased efficiency and reduced implementation costs. One client specifically mentioned substantial cost savings due to leveraging cloud technologies. Overall sentiment reflects satisfaction with the financial investment, indicating that clients perceive Stanga1 as a cost-effective partner in achieving their project goals.
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Belgium (1) Bulgaria (1) France (1) Germany (1)

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Review Rating from Clients

5.0/5.0

Quality

5.0

Schedule

5.0

Cost

5.0

Willing to Refer

5.0

Reviewers in Sofia emphasize Stanga's technical proficiency across web, mobile, and DevOps, successfully managing large-scale, data-driven projects. They commend their organized communication, timely delivery, and adaptability, which led to improved operational efficiency, revenue, and user adoption.
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NATEK

5.0 5 reviews

$250,000+

$50 - $99 / hr

250 - 999

Sofia, Bulgaria

Services provided

10% Application Testing

20% Application Management & Support

20% DevOps Managed Services +7 services

10% Computer Engineering

10% IT Managed Services

10% IT Staff Augmentation

5% AI Development

5% BI & Big Data Consulting & SI

5% Cloud Consulting & SI

5% Staffing

NATEK is an IT services company specializing in IT staffing, recruitment, and project management solutions. Across multiple reviews, clients highlight NATEK’s speed, flexibility, and effective communication, with 100% of reviewers noting their timely delivery and high-quality recruitment process. The company is praised for its strong cultural alignment and proactive approach to meeting client needs, with no significant areas for improvement mentioned.

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Reviews mention Collaborative
Clients have positively noted NATEK's strong collaborative efforts, highlighting their effective communication and responsiveness. One client emphasized the 'good organized process for collaboration' and the alignment of company cultures, which facilitated smooth project management. The timely handling of requests and issues further underscores the sentiment of collaboration, suggesting NATEK's commitment to client engagement and satisfaction.

Project Management Services for IT Company

5.0 Mar 30, 2026

They had a strong company culture, matching our culture as well. Good organized process for collaboration with us as client, responsive and helpful account managers. Deliverables as per set scope, strong collaboration, effective resolution of any issues.
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Average Project Cost Breakdown

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

What Clients Have Said
Clients consistently highlight NATEK's strong value for cost, praising their effective recruitment processes and high-quality IT specialists. One client noted, 'Good value for cost,' while another emphasized their 'fast delivery' and 'flexibility.' Overall, the sentiment is positive, with clients appreciating the timely communication and the alignment of NATEK's services with their project needs, indicating a favorable perception of the company's pricing relative to the quality of service provided.
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Bulgaria (2) Poland (2) United States (1)

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Sofia, Bulgaria

Sopharma Business Towers Complex, 5 Lachezar Stanchev str.
Sofia, Bulgaria 1797
76 - 100

+359 896 935 690

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SoCyber

5.0 13 reviews

$1,000+

$25 - $49 / hr

10 - 49

Sofia, Bulgaria

Services provided

10% Application Testing

10% Application Management & Support

10% BI & Big Data Consulting & SI +7 services

10% Blockchain

10% Corporate Training & Coaching

10% Cybersecurity

10% Graphic Design

10% Public Relations

10% Social Media Marketing

10% Web Development

SoCyber is a company specializing in Application Testing, specifically in security and penetration testing services. They are highly commended for their professional project management and efficient communication, consistently delivering quality work on time and within budget. Ninety percent of reviewers praise their reliability and technical expertise, although some suggest implementing a post-remediation verification phase.

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2 of 2 Application Testing reviews are 5 stars

1 new review for Application Testing in past 6 months

Less than $10,000 avg. project cost

Application Testing PROJECT HIGHLIGHT

Penetration Testing for Video Chat Services Company
5.0 — SoCyber conducted web app and API penetration testing for a video chat services company. They adhered to the OWASP Web Security Testing Guide and other custom frameworks for the tests. Read more
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Average Project Cost Breakdown

Less than $10,000 (11)

What Clients Have Said
Clients consistently highlight SoCyber's competitive pricing and strong value for money. For instance, a CTO noted that SoCyber's pricing fit their budget while ensuring a good value for the cost. Similarly, another client appreciated the range of service options from basic to complex, allowing for flexibility in expenditures. Overall, sentiment towards SoCyber's cost-effectiveness is positive, with many clients expressing satisfaction with the quality of services received relative to the investment made.
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Bulgaria (8) England (2) United States (1)

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Review Rating from Clients

5.0/5.0

Quality

5.0

Schedule

5.0

Cost

5.0

Willing to Refer

5.0

Reviewers in Sofia highlight SoCyber's strong technical skills in vulnerability testing, regulatory compliance, and security consulting. Clients appreciate their effective communication, detailed reporting, and tailored solutions for complex security challenges in banking, air traffic control, and fintech sectors.
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DSS - Digital and Software Solutions

5.0 4 reviews

$10,000+

$25 - $49 / hr

50 - 249

Sofia, Bulgaria

Services provided

10% Application Testing

40% IT Staff Augmentation

20% Web Development +4 services

15% Custom Software Development

5% Application Management & Support

5% IT Managed Services

5% Other IT Consulting and SI

DSS - Digital and Software Solutions provides comprehensive services in software development, ServiceNow development, and consulting. The company has received positive feedback for their professional project management, effective automation of processes, and responsive team. Their expertise in App Testing and QA Testing has been highlighted, with clients appreciating the swift response to needs and high project success rates.

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Reviews mention Communicative
Clients have consistently praised DSS - Digital and Software Solutions for their excellent communication and responsiveness. One client noted the 'clear communication and prompt response' throughout the project, highlighting their efficient project management and timely delivery. Another emphasized the company's reliability and ability to address needs promptly, reflecting a strong sentiment of satisfaction regarding communication practices.

Cybersecurity Platform Dev & IT Services for University

5.0 Feb 27, 2024

Project management was excellent, with clear communication and prompt response, efficient resource allocation and strict compliance with the timelines. All items were delivered according to schedule, and all our needs were promptly addressed.
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Industry Experience

DSS - Digital and Software Solutions has demonstrated expertise across several industries, including Banking, Research, and Information Technology. Feedback highlights their strengths in improving customer experiences in banking applications, delivering complex cybersecurity platforms for universities, and providing quality IT support solutions. Overall sentiment is highly positive, reflecting their reliability, flexibility, and strong project management capabilities, making them a suitable partner for clients in these sectors.
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Banks Research Information technology

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Average Project Cost Breakdown

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

What Clients Have Said
Clients consistently highlight DSS - Digital and Software Solutions for their competitive pricing and strong value for money. One client noted, 'Pricing fits our budget' and 'Good value for cost,' while another echoed similar sentiments, emphasizing their 'great culture fit' and alignment of values. Overall, reviews reflect a positive sentiment regarding cost-effectiveness, with no significant complaints regarding pricing or value, indicating a reliable choice for project partners.
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Review Rating from Clients

5.0/5.0

Quality

5.0

Schedule

5.0

Cost

5.0

Willing to Refer

5.0

Local clients praise DSS for their expertise in developing complex banking and cybersecurity solutions, emphasizing timely delivery, flexibility, and tailored approaches that meet diverse project needs.
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MyApp.BG

5.0 1 review

$5,000+

$50 - $99 / hr

2 - 9

Sofia, Bulgaria

Services provided

10% Application Testing

80% Mobile App Development

10% Application Management & Support

MyApp.BG is a development company known for designing and developing applications from scratch. Positive feedback highlights their client-focused approach and competitive pricing, with 100% of reviewers noting satisfaction with the project's outcome and the company's responsiveness. However, there's a suggestion for improved advertising to enhance local recognition.

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Industry Experience

MyApp.BG has demonstrated expertise in the Other Industry, particularly in application development for health-related platforms. Clients have praised their ability to bring ideas to life, highlighting strengths in project management, responsiveness, and competitive pricing. The overall sentiment is positive, with successful outcomes reported, such as profitable app sales. Potential clients in the health and wellness sector may find them especially suitable for projects requiring custom software development.
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Other Industry

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Average Project Cost Breakdown

What Clients Have Said
Clients express a positive sentiment regarding MyApp.BG's overall cost and value for money. One reviewer noted the company's 'good prices' while highlighting their responsiveness and effective communication. The successful sale of an application developed by MyApp.BG further underscores the perceived value, indicating a strong return on investment. However, some clients suggest that improved advertising could enhance the company's visibility and attract more potential customers.
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Quality House

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

Sofia, Bulgaria

Services provided

80% Application Testing

20% IT Staff Augmentation

Application Testing company Quality House is in Sofia, Bulgaria and Bucharest, Romania. They provide Application Testing and IT staff augmentation.
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adesso Bulgaria

Not yet reviewed

$25,000+

$25 - $49 / hr

50 - 249

Sofia, Bulgaria

Services provided

20% Application Testing

30% Custom Software Development

20% Application Management & Support +2 services

20% IT Managed Services

10% Enterprise App Modernization

Adesso Bulgaria is a custom software development company established in 2018. Their services include Custom Software Development and IT managed services.
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DeepSource

Not yet reviewed

$1,000+

$25 - $49 / hr

10 - 49

Sofia, Bulgaria

Services provided

25% Application Testing

30% Mobile App Development

30% Web Development +1 service

15% Custom Software Development

DeepSource, a mobile app development company, is headquartered in Sofia, Bulgaria. The team specializes in Mobile App Development and Web Development.
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Atom Solutions Ltd.

Not yet reviewed

$5,000+

$25 - $49 / hr

50 - 249

Sofia, Bulgaria

Services provided

10% Application Testing

30% Web Development

20% Web Design +4 services

15% Mobile App Development

10% AR/VR Development

10% UX/UI Design

5% Graphic Design

Atom Solutions Ltd. Is a web development firm founded in 2008. Located in Sofia, Bulgaria and Silkeborg, Denmark, the team focuses on Web Development and Web Design.
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Energize Global Services

Not yet reviewed

$10,000+

$50 - $99 / hr

250 - 999

Sofia, Bulgaria

Services provided

10% Application Testing

30% IT Staff Augmentation

19% Custom Software Development +8 services

10% DevOps Managed Services

10% Microservices Architecture Services

10% Web Design

5% Cloud Consulting & SI

3% Staffing

1% AI Development

1% IT Strategy Consulting

1% Recruiting

Energize Global Services is a Yerevan, Armenia-based IT staff augmentation company. They focus on IT staff augmentation and Custom Software Development and were established in 2007.
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Sofia, Bulgaria

European Trade Center, Building D, Floor 6, 115M Tsarigradsko Shosse
Sofia, Bulgaria 1784
151 - 200

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Estafet

Not yet reviewed

$100,000+

$50 - $99 / hr

50 - 249

Sofia, Bulgaria

Services provided

20% Application Testing

20% AI Development

20% API Development +3 services

20% Microservices Architecture Services

10% Custom Software Development

10% Web Design

Estafet is a midsize custom software development firm. Launched in 2002, the team provides Custom Software Development and Artificial Intelligence.
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Sofia, Bulgaria

Floor 5 Vitosha Business Center 47, Blvd. "Cherni vrah" Blvd, 1407 Sofia, Bulgaria
Sofia, Bulgaria 1407
76 - 100

+447779246741

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1Crew

Not yet reviewed

$5,000+

$25 - $49 / hr

10 - 49

Sofia, Bulgaria

Services provided

30% Application Testing

30% Cloud Consulting & SI

15% IT Managed Services +2 services

15% IT Strategy Consulting

10% IT Staff Augmentation

1Crew is a cloud consulting & SI company launched in 2013. The team focuses on cloud consulting & SI and Application Testing.
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TINQIN

Not yet reviewed

$50,000+

$50 - $99 / hr

250 - 999

Sofia, Bulgaria

Services provided

10% Application Testing

40% Custom Software Development

15% Business Consulting +5 services

10% Application Management & Support

10% Web Development

5% IT Strategy Consulting

5% UX/UI Design

5% Web Design

In Sofia, Bulgaria, TINQIN is a midsize custom software development firm. Their services include Custom Software Development and Business Consulting.
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Soft2Run

Not yet reviewed

$10,000+

$25 - $49 / hr

10 - 49

Bałsza, Bulgaria

Services provided

15% Application Testing

30% Custom Software Development

20% AI Development +6 services

10% Application Management & Support

5% E-Commerce Development

5% Enterprise App Modernization

5% Mobile App Development

5% Other Application Development

5% Web Development

Soft2Run is a software development company. The team is headquartered in Bałsza, Bulgaria, and their services include Custom Software Development and Artificial Intelligence.
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NCB Ltd

Not yet reviewed

$1,000+

$25 - $49 / hr

10 - 49

Sofia, Bulgaria

Services provided

20% Application Testing

30% Custom Software Development

30% Web Development +2 services

10% Blockchain

10% IoT Development

Founded in 2013, NCB Ltd is a software development firm. Their team offers Custom Software Development and Web Development.
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Concord Europe

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

Sofia, Bulgaria

Services provided

15% Application Testing

30% Custom Software Development

30% IT Staff Augmentation +3 services

10% BI & Big Data Consulting & SI

10% Other IT Consulting and SI

5% IT Strategy Consulting

Concord Europe is an IT staff augmentation company launched in 2017. The team offers IT staff augmentation and Custom Software Development.
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ENDIGITAL

Not yet reviewed

$25,000+

$50 - $99 / hr

50 - 249

Sofia, Bulgaria

Services provided

15% Application Testing

15% Custom Software Development

15% E-Commerce Development +4 services

15% IT Staff Augmentation

15% Mobile App Development

15% Web Development

10% IT Managed Services

ENDIGITAL is a custom software development firm launched in 2012. The team offers Custom Software Development and E-Commerce Development and is located in Sofia, Bulgaria and LONDON, England.
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Wildorb Interactive Design Studio

Not yet reviewed

$1,000+

$25 - $49 / hr

10 - 49

Sofia, Bulgaria

Services provided

10% Application Testing

10% Branding

10% Custom Software Development +7 services

10% E-Commerce Development

10% Graphic Design

10% IoT Development

10% Mobile App Development

10% UX/UI Design

10% Web Design

10% Web Development

Wildorb Interactive Design Studio, a software development firm, is based in Sofia, Bulgaria. They provide Custom Software Development and UX/UI Design.
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Sourcelab

Not yet reviewed

$5,000+

$25 - $49 / hr

10 - 49

Sofia, Bulgaria

Services provided

15% Application Testing

15% UX/UI Design

15% Web Development +6 services

10% Custom Software Development

10% E-Commerce Development

10% Low/No Code Development

10% Mobile App Development

10% Web Design

5% Application Management & Support

Sourcelab is an UX design agency. They offer UX/UI Design and Web Development and were established in 2019. The company is in Sofia, Bulgaria and Amsterdam, Netherlands.
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More responsive than most other service providers

Sourcelab 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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Roller Gaming Ltd.

Not yet reviewed

$100,000+

$50 - $99 / hr

10 - 49

Sofia, Bulgaria

Services provided

15% Application Testing

45% Mobile App Development

20% Custom Software Development +1 service

20% Web Development

Roller Gaming Ltd. Is a mobile app development company established in 2021. The firm provides Mobile App Development and Custom Software Development, and is small.
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Devocean Services

5.0 2 reviews

$10,000+

$50 - $99 / hr

50 - 249

Sofia, Bulgaria

Services provided

10% Application Testing

25% Custom Software Development

25% Enterprise App Modernization +3 services

15% Mobile App Development

15% Web Development

10% Application Management & Support

Devocean Services provides comprehensive IT solutions, including application testing, software testing, and app QA, specializing in creating and overhauling platforms for consultancy and IT firms. Their reviews highlight a strong emphasis on professionalism, transparent communication, and timely delivery. Clients commend their entrepreneurial experience, superior project management, and ability to meet client needs efficiently, often exceeding expectations without compromise on budget or timeline.

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VA Software Solutions ltd

Not yet reviewed

$50,000+

$50 - $99 / hr

10 - 49

Sofia, Bulgaria

Services provided

10% Application Testing

20% Custom Software Development

20% Enterprise App Modernization +4 services

20% Web Development

10% Application Management & Support

10% BI & Big Data Consulting & SI

10% Robotics Process Automation

Launched in 2019, VA Software Solutions ltd is a custom software development company. Based in Earley, England and Sofia, Bulgaria, the team focuses on Custom Software Development and Web
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Sofia, Bulgaria

bul. Cherni Vrah 47
Sofia, Bulgaria 1407
10 - 15

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SavvyTribe

Not yet reviewed

$25,000+

$50 - $99 / hr

10 - 49

Sofia, Bulgaria

Services provided

10% Application Testing

25% Custom Software Development

25% IT Staff Augmentation +4 services

10% AI Development

10% BI & Big Data Consulting & SI

10% Cloud Consulting & SI

10% Enterprise App Modernization

SavvyTribe is an IT staff augmentation company. Launched in 2022, the agency is in Sofia, Bulgaria and Sofia, Bulgaria. Their services include IT staff augmentation and Custom Software Development.
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Emerging Markets Consulting

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Sofia, Bulgaria

Services provided

25% Application Testing

50% IT Strategy Consulting

25% Business Consulting

Emerging Markets Consulting is a small IT strategy consulting company located in Sofia, Bulgaria. The team provides IT strategy consulting and Application Testing.
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Populosoft

Not yet reviewed

$1,000+

$25 - $49 / hr

2 - 9

Sofia, Bulgaria

Services provided

25% Application Testing

40% Mobile App Development

25% Custom Software Development +1 service

10% Social Media Marketing

In Sofia, Bulgaria, Populosoft is a mobile app development company. Founded in 2025, the team offers Mobile App Development and Custom Software Development.
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Web Publishing House

Not yet reviewed

$10,000+

$50 - $99 / hr

2 - 9

Sofia, Bulgaria

Services provided

10% Application Testing

30% Mobile App Development

30% Web Development +2 services

20% IT Strategy Consulting

10% UX/UI Design

Web Publishing House is a mobile application development firm. Their small team is based in Sofia, Bulgaria. Their services include Mobile App Development and Web Development.
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SoftConsultGroup

Not yet reviewed

$10,000+

$50 - $99 / hr

2 - 9

Sofia, Bulgaria

Services provided

10% Application Testing

50% Custom Software Development

20% Mobile App Development +1 service

20% Web Development

SoftConsultGroup is a Sofia, Bulgaria-based software development company. Their services include Custom Software Development and Mobile App Development.
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