Top 10 QA & Test Automation Agencies in California (2026)

As of 2026, the top-ranked qa & test automation agency in California on AgencyCluster is PixelCrayons, with an AgencyCluster Score of 96/100. 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.

This list features 10 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 22+ years of experience. For full methodology details, see our How We Rank page.

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.

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.