Independent software testing company providing comprehensive QA automation, functional testing, and quality engineering services.
Rising Star15+ YearsMid-Size
QA & Test AutomationTop 10 Elite
The very best • View detailed Top 10
Agencies 11–25
Strong contenders • View detailed Top 25
#11
#12
#13
#14
#15
#16
#17
#18
#19
#20
#21
#22
#23
#24
#25
a1qa
Georgia
Applause
Massachusetts
Qualitest
New York
QualityKiosk
California
Testrig Technologies
Texas
KiwiQA
Massachusetts
QualityWorks
California
Appsierra
California
Cigniti Technologies
Texas
TestingXperts
Pennsylvania
Testlio
Texas
Beta Breakers
California
Perfecto
Minnesota
QA Mentor
New York
BugRaptors
California
Agencies 26–50
Quality agencies for deeper exploration
Enterprise testing platform providing AI-powered test automation, continuous testing, and quality engineering for complex applications.
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AI-powered test automation platform providing intelligent testing, self-healing tests, and cloud-based QA automation services.
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Leading software QA outsourcing company offering AI-driven testing, automation, and manual QA services for startups to Fortune 500 companies.
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QA and software testing company specializing in automation, manual, and performance testing with streamlined SDLC integration.
Rising Star15+ YearsBoutique
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Software testing and development company providing comprehensive QA services including automation, API testing, and DevOps practices.
Rising Star15+ YearsLarge Team
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US-based software testing company with 35+ years providing onshore QA automation, functional testing, and accessibility services.
Rising Star15+ YearsMid-Size
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Software testing and performance engineering company providing test automation, load testing, and quality assurance consulting.
Rising StarGoogle PartnerAWS Partner+3 more
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QA services provider offering mobile app testing, functional testing, automated testing, and comprehensive quality assurance solutions.
Rising Star15+ YearsMid-Size
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Intelligent test automation platform providing low-code testing, AI-powered insights, and seamless CI/CD integration for modern teams.
Rising StarGoogle Partner10+ Years+1 more
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GUI test automation tool providing comprehensive testing for desktop, web, and mobile applications with codeless and coded approaches.
Rising Star15+ YearsSmall Team
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Software testing company providing test automation, performance testing, and quality assurance with modern methodologies.
Rising Star5+ YearsMid-Size
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Modern QA company providing comprehensive testing services including automation, performance, and security testing for digital products.
Rising StarBoutique
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QA consulting firm focused on test automation and DevOps, providing staff augmentation and specialized testing for diverse industries.
Rising Star15+ YearsSmall Team
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QA and test automation company with 250+ specialists delivering AI-enhanced testing solutions and full-scale quality assurance.
Rising Star15+ YearsMid-Size
QA & Test Automation
Independent software testing and QA consulting company providing AI-based automation, performance engineering, and full-cycle testing.
Rising Star10+ YearsMid-Size
QA & Test Automation
Mobile testing platform providing real device cloud, scriptless automation, and continuous testing for mobile applications.
10+ YearsMid-Size
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Dynamic QA company specializing in test automation and quality assurance using advanced tools for efficient bug-free product delivery.
10+ YearsSmall Team
QA & Test Automation
Software testing company providing test automation, functional testing, and quality assurance with focus on technical excellence.
15+ YearsBoutique
QA & Test Automation
US-based QA company offering flexible, on-demand testing services including automation and manual testing without long-term contracts.
10+ YearsSmall Team
QA & Test Automation
Software testing company focusing on automation alignment with business objectives, CI/CD integration, and sustainable QA practices.
10+ YearsBoutique
QA & Test Automation
QA testing platform combining no-code test automation with crowdsourced testing for rapid quality assurance and continuous testing.
10+ YearsSmall Team
QA & Test Automation
Blockchain and software development company offering DevOps services with focus on platform extensibility and application delivery automation.
10+ YearsMid-Size
DevOps & CI/CDAI/ML Development
DevOps consulting and implementation services provider focusing on continuous integration, delivery, testing, and deployment automation.
10+ YearsEnterprise
DevOps & CI/CDQA & Test AutomationComplete Top 50 QA & Test Automation Agencies
Full numbered list of all 49 agencies
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Complete Top 50 QA & Test Automation Agencies
Full numbered list of all 49 agencies
- 1.ScienceSoft — Texas
- 2.PixelCrayons — California
- 3.XBOSoft — Colorado
- 4.hikeQA — Texas
- 5.QA Wolf — Washington
- 6.QualiTest Group — California
- 7.Microexcel — Massachusetts
- 8.QA TestLab — Texas
- 9.SmartBear — Massachusetts
- 10.Sauce Labs — California
- 11.a1qa — Georgia
- 12.Applause — Massachusetts
- 13.Qualitest — New York
- 14.QualityKiosk — California
- 15.Testrig Technologies — Texas
- 16.KiwiQA — Massachusetts
- 17.QualityWorks — California
- 18.Appsierra — California
- 19.Cigniti Technologies — Texas
- 20.TestingXperts — Pennsylvania
- 21.Testlio — Texas
- 22.Beta Breakers — California
- 23.Perfecto — Minnesota
- 24.QA Mentor — New York
- 25.BugRaptors — California
- 26.TestCo — Texas
- 27.Tricentis — Texas
- 28.Functionize — California
- 29.QASource — California
- 30.OnPath Testing — Colorado
- 31.LogiGear — California
- 32.QualityLogic — Idaho
- 33.RTTS — New York
- 34.TestMatick — New York
- 35.mabl — Massachusetts
- 36.Ranorex — Texas
- 37.QualiTLabs — Texas
- 38.Testaify — Texas
- 39.tapQA — Minnesota
- 40.TestFort — Wyoming
- 41.ImpactQA — New York
- 42.Kobiton — Georgia
- 43.QACraft — New York
- 44.QualityLogic Testing — Washington
- 45.Mindful QA — California
- 46.TestAces — Massachusetts
- 47.Rainforest QA — California
- 48.HashCash Consultants — California
- 49.Qentelli — Texas
Top 50 QA & Test Automation Agencies — FAQ
Common questions about the best qa & test automation agencies.
Who is the #1 qa & test automation agency in the USA in 2026?
As of 2026, the top-ranked qa & test automation agency in the USA on AgencyCluster is ScienceSoft, with an AgencyCluster Score of 100/100. Rankings are based on verified evidence across credibility, proof of work, reputation, category specialization, delivery maturity, and freshness. Rankings are updated periodically as new evidence becomes available.
How were the top 50 qa & test automation agencies in the USA selected?
This list features 49 agencies selected from AgencyCluster's curated directory. Each agency was evaluated using the AgencyCluster Score (0–100), with particular weight on demonstrated expertise in qa & test automation. Only agencies with verified credentials are eligible, and rankings cannot be purchased. The agencies on this list average 18+ years of experience. For full methodology details, see our How We Rank page.
What should I look for when choosing a qa & test automation agency from this list?
Ask about their test automation framework experience (Selenium, Cypress, Playwright, Appium). Check if they can create a test strategy, not just execute test cases. Ask about their approach to CI/CD integration and how they handle test environment management. For enterprise, ask about their experience with performance testing and security testing.
How much do the top qa & test automation agencies typically charge?
Test automation framework setup costs $15K–$50K. Ongoing QA retainers run $5K–$20K/month. Performance testing engagements cost $10K–$40K. Comprehensive test strategy development costs $10K–$30K.
Trusted Rankings
Every agency on this list has been reviewed by our editorial team. Rankings are based on our transparent methodology which evaluates credibility, outcomes, and reputation.
No paid rankingsVerified credentialsUpdated regularly
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