Pure-play software testing company with 1,000+ QA engineers providing full-cycle testing, automation, and specialized QA services.
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QA testing firm providing end-to-end automation services with adaptable engagement approaches and industry-wide expertise.
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Global digital assurance and engineering services company with AI-led platforms, serving Fortune 500 and Global 2000 enterprises.
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Global leader in Digital Assurance and Quality Engineering with 1,100+ specialists providing comprehensive testing services.
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QA & Test AutomationComplete Top 25 QA & Test Automation Agencies
Full numbered list of all 25 agencies
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Complete Top 25 QA & Test Automation Agencies
Full numbered list of all 25 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
Top 25 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 25 qa & test automation agencies in the USA selected?
This list features 25 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 20+ 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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