TesterArmy

TesterArmy is a Y Combinator-backed company that aI QA agent that tests code before it ships. Based in San Francisco, USA, the company participated in the Spring 2026 batch of Y Combinator.

TesterArmy is an AI agent that tests your web app in a real browser before code ships. It runs automatically on every GitHub Pull Request, then posts recording, pass/fail results, and failure context as a PR comment. Teams also get a CLI for local/CI runs and an API for custom pipelines. We catch the regressions that code review misses.

TesterArmy was part of Y Combinator's Spring 2026 cohort, has a team of approximately 4 employees, and is actively operating.