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Top Software Testing Companies of 2025
DeviQA team
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Software testing is a key part of building a reliable digital product. It helps you find and fix problems early, cut costs, and launch faster. Poor testing can hurt your brand, slow your release, and increase risks. That’s why many teams partner with dedicated software testing providers instead of relying only on in‑house resources.
Top software testing companies
Whether you're a founder or CTO, this list will help you discover QA providers for fast, reliable, and cost‑effective testing support. These companies cover functional, performance, automation, security, and QA consulting. Whether you're launching a startup or managing a large enterprise, you’ll find partners here with the skills to support your goals.
1. DeviQA
Founded: 2010
Headquarters: Poland, Ukraine, United States, United Kingdom, Mexico
Company size: 250+
Rating: 5.0
Key services: QA outsourcing, QA consulting, managed testing services, automation testing, manual testing, performance testing, functional testing, full cycle testing, mobile app testing, web app testing, API testing.
Description: DeviQA helps companies extend testing without building teams from scratch. The team designs QA processes from the ground up, improves existing workflows, or augments in‑house teams.
Reviews:
Highlights: strong automation and manual QA, fast issue turnaround, clear communication, long‑term relationships; occasional note about pricing.
Best fit: startups and enterprises needing dependable QA at pace.
2. QA Mentor
Founded: 2010
Headquarters: United States
Company size: 313
Rating: 4.9
Key services: automation QA services, security testing, QA performance engineering and optimization, QA audit and process improvement, QA environment management.
Description: QA Mentor is an ISO‑certified independent software testing company headquartered in New York with twelve testing operation centers worldwide. It offers a wide range of services and a global delivery model.
Reviews:
Highlights: wide service coverage (manual, automation, advisory), responsive PM, ability to plug into client teams; occasional comment about time‑zone overlap.
Best fit: teams that want a scalable partner and QA leadership.
3. Testrig Technologies
Founded: 2015
Headquarters: Pune, India | Locations: UK, USA
Company size: 51–200
Rating: 5.0
Key services: quality assurance, DevOps QA, automation testing, cloud migration assurance, AI/ML testing, agile QA, web & mobile testing, security & penetration testing, blockchain testing, QA consulting.
Description: Testrig Technologies focuses on quality engineering, test automation, performance engineering, and continuous testing. Services fit SMEs and enterprises.
Reviews:
Highlights: test automation focus, clear reporting, collaborative way of working.
Best fit: product teams looking to boost automation coverage.
4. TestFort
Founded: 2002
Headquarters: United States
Company size: 160
Rating: 5.0
Key services: manual testing, test automation, testing consulting, testing outsourcing, functional testing, UI testing, usability testing, compatibility testing.
Description: TestFort delivers thorough testing with transparent communication, concise documentation, and predictable delivery.
Reviews:
Highlights: mobile/fintech QA, detailed reporting, reliable schedules; a few clients asked for more strategic input early on.
Best fit: companies needing steady hands for mobile and security‑sensitive apps.
5. Solvd
Founded: 2011
Headquarters: United States
Company size: 600+
Rating: 5.0
Key services: functional testing, performance testing, compatibility testing, usability testing, security testing, and end‑to‑end testing.
Description: Solvd is a software development and consulting company with strong testing practice across Healthcare, FinTech, Logistics, EdTech, and Media.
Reviews:
Highlights: test automation and CI/CD support, clear PM, measurable drop in defects; one note about speed trade‑offs due to thorough testing.
Best fit: teams scaling automation alongside development.
6. ScienceSoft
Founded: 1989
Headquarters: United States
Company size: 75+
Rating: 4.8
Key services: functional testing, performance testing, compatibility testing, accessibility testing, security testing, usability testing.
Description: ScienceSoft provides testing for mobile, web, desktop, DWH, and SaaS, including Big Data, IoT, AR, blockchain, and microservices.
Reviews:
Highlights: broad tech stack, staff‑augmentation strength, quick responses (often within 24h); isolated remarks about time‑zone coordination.
Best fit: complex, multi‑stack projects and security testing needs.
7. KiwiQA
Founded: 2009
Headquarters: Sydney, Australia
Company size: 51–200
Rating: 4.9
Key services: test automation (AI & traditional), load & performance testing, security testing, functional & integration testing, cross‑compatibility testing, accessibility testing.
Description: KiwiQA provides functional, automation, performance, security, and accessibility testing with frameworks like K‑SPARC and experience across Salesforce and Microsoft D365.
Reviews:
Highlights: security and load testing, on‑time delivery, flexible roadmap changes; pricing seen as fair, with a couple of asks to lower rates.
Best fit: SMEs needing hands‑on security and performance testing.
8. QualySec
Founded: 2020
Headquarters: India
Company size: up to 50
Rating: 4.9
Key services: penetration testing services.
Description: QualySec specializes in penetration testing for web, mobile, cloud, IoT, and blockchain, with reports that include steps to reproduce and remediation guidance. The team follows OWASP and SANS standards and also covers automation, manual, functional, and load testing.
Reviews:
Highlights: penetration testing across web/mobile/cloud, clear remediation guidance, quick turnaround; one suggestion to refine FDA‑style documentation format.
Best fit: compliance‑driven security testing (e.g., SOC 2, HIPAA, FDA).
9. Luxe Quality
Founded: 2016
Headquarters: United States, Spain, Ukraine
Rating: 5.0
Key services: functional testing, automated testing, security testing, performance testing, usability testing, web app testing, mobile app testing, API testing, QA consulting.
Description: Luxe Quality has delivered 200+ projects for clients in 30 countries and holds a 5‑star rating on Clutch.
Reviews:
Highlights: mobile/web/API testing, gains in automation coverage, fast feedback cycles; a single note to deepen end‑user understanding further.
Best fit: startups and data‑product teams scaling automation.
10. Cigniti Technologies
Founded: 1998
Headquarters: India (global presence)
Rating: 4.9
Key services: DevOps testing, compatibility testing, functional testing, performance testing, security testing, test automation, crowdsourced testing, quality engineering.
Cigniti supports global brands across 20+ countries with quality engineering and assurance.
11. AppSierra
Founded: 2015
Headquarters: India
Company size: 150+
Rating: 4.9
Key services: compatibility testing, functional testing, performance testing, automation testing, usability testing, localization testing, QA engineering.
AppSierra offers software development and QA services for businesses of all sizes. The team covers microservices, blockchain, IoT, Big Data, and CRM testing.
12. Aegis Softtech
Founded: 2005
Headquarters: India
Key services: functional testing, performance testing, usability testing, automation testing, browser testing.
Aegis Softtech provides software testing services and supports digital transformation with modern tools and practices. The QA team focuses on risk reduction and predictable delivery.
13. A1QA
Founded: 2003
Headquarters: United States and United Kingdom
Company size: 1100+
Rating: 4.9
Key services: functional testing, performance testing, cybersecurity testing, usability testing, integration testing, regression testing, compatibility testing, localization testing.
A1QA is an ISO‑certified company focused on testing with 24/7 delivery options and experience across blockchain, CRM, ERP, AR/VR, Cloud, IoT, desktop, mobile, and web.
14. TestScenario
Founded: 2014
Headquarters: India
Company size: 41+
Rating: 4.9
Key services: automation testing, web app testing, mobile testing.
TestScenario serves startups, SMEs, and enterprises with cross‑platform testing, real‑world test design, and automation.
15. QA Madness
Founded: 2013
Headquarters: Lithuania
Rating: 4.8
Key services: automated testing, manual testing, cybersecurity, mobile app testing, web app testing, desktop app testing, wearables testing, QA audit and consulting.
QA Madness provides end‑to‑end QA services and can set up and manage QA activities, including audits and test documentation.
16. Mindful QA
Founded: 2018
Headquarters: United States
Rating: 5.0
Key services: automation testing, manual testing, website testing, mobile app testing, security testing, accessibility testing, QA recruiting.
Mindful QA is a US‑based company that donates 10% of profit to charity and works with well‑known brands.
17. HikeQA
Founded: 2020
Headquarters: India
Rating: 5.0
Key services: mobile app testing, QA outsourcing, performance testing, automation testing, functional testing.
HikeQA serves startups and SMEs across various industries.
18. ImpactQA
Founded: 2011
Headquarters: United States
Company size: 250+
Rating: 4.6
Key services: automation testing, functional testing, mobile app testing, security testing, IoT testing, performance testing.
ImpactQA provides QA consulting and testing for healthcare, e‑learning, eCommerce, media, logistics, and real estate.
19. QATestLab
Founded: 2005
Headquarters: Cyprus
Company size: 250+
Rating: 4.5
Key services: functional testing, UX/usability testing, compatibility testing, integration testing, performance testing, penetration testing, localization testing, GUI testing, security testing, acceptance testing.
QATestLab covers manual and automated testing with experience across games, IoT, web, mobile, desktop, and cloud.
20. QASource
Founded: 2002
Headquarters: United States
Company size: 1400+
Rating: 4.8
Key services: automation testing, manual testing, security testing, performance testing, mobile QA, API testing, QA analysis, blockchain testing, IoT testing.
QASource supports on‑time delivery and customized engagement models for a range of industries.
21. Luvina
Founded: 2004
Headquarters: Vietnam, Japan, United States
Company size: 750+
Key services: automation testing, manual testing, performance testing, functional testing, end‑to‑end testing, mobile app testing, web app testing, API testing, UAT testing, system testing.
Luvina helps detect errors early and streamline testing with tailored cases and tooling.
22. TestingXperts
Founded: 1996
Headquarters: United Kingdom, United States
Company size: 2500+
Key services: manual testing, automation testing, security testing, performance testing, accessibility testing, test consulting.
TestingXperts operates 12 offices worldwide and works with AI/ML, blockchain, Big Data, Cloud, and IoT.
23. Netow Solutions
Founded: 2012
Headquarters: Nigeria
Company size: 15
Key services: QA and software testing, resource augmentation, QA training.
Netow Solutions offers API/web services testing, security, usability, compatibility, UAT, regression, integration, and end‑to‑end testing. The team also trains new specialists at Netow Solutions Academy.
Other software testing companies
Ranking methodology
The ranking uses third‑party review data with a focus on Clutch, GoodFirms, and G2 (where a services profile exists). We look at:
Each factor has a weight; scores are combined for the final order. Data is checked at the time of the article update.
How to select the right software testing provider
When choosing a testing partner, consider:
Additional tips
What is the typical cost of hiring a software testing company?
Costs vary by location and scope.
Some providers price by sprints, features, or coverage.
How do QA companies scale testing efforts for different project sizes?
Most providers offer modular teams. For a small app, one or two testers may be enough. For a large system, vendors assign full teams with leads, automation engineers, and performance specialists. They plug into CI/CD to run tests as the product evolves.
Why AI‑driven capabilities matter in testing
AI can help with:
Challenges of outsourcing QA
Mitigate these with a careful vendor selection, clear SLAs, and steady communication.
Conclusion
Finding a reliable QA partner takes effort, but the payoff is a smoother release path and better user experience. From global players to niche experts, these QA companies adapt to varied needs. If you want to suggest a company for this list, email [email protected] with the subject “Top 20 Leading Software Testing Companies.”