github-integration
(5)
BitPatrol
BitPatrol is an AI-powered code security company that scans source code on every commit to catch exposed secrets - API keys, database passwords, and auth tokens - the moment they are pushed. Founded by former Stripe engineer and top-2% HackerOne researcher Christopher Lambert, it replaces legacy regex scanners with a proprietary machine-learning model that reads code context and cross-references billions of public commits to cut false positives. Part of Y Combinator's Spring 2025 (X25) batch, the company was acquired in 2025.
ion design
ion design is a San Francisco AI company (YC W24) building tools that let non-engineers ship real UI changes to a live codebase. It started by turning Figma designs into clean React code, grew into a Figma-like visual editor that opens branches and pull requests against your GitHub, and now runs autonomous AI product-design agents that create and test on-brand pages to grow revenue. Founded in 2023 by Samraaj Bath, it targets the gap between people who can ship code and the PMs, designers, and marketers who cannot.
Mesmer
Mesmer is an AI 'chief of staff' for engineering organizations that watches the work itself - code, specs, designs and meetings - to give founders and CTOs a live picture of what is shipping, what is stalling and where the friction is, without pulling teams into more status meetings. Founded in 2025 by three repeat founders out of Origin Financial and Glio, the Y Combinator-backed company pitches itself as 'Cursor for CTOs' and says it has reviewed 70M+ lines of code for customers with a combined valuation north of $3B.
TesterArmy
TesterArmy is a Y Combinator-backed (P26) startup building AI agents that test web and mobile apps the way a human would. Teams describe tests in plain English; the agent launches a real browser or device, clicks and types through user flows, handles logins, OAuth and OTP, then returns screenshots, recordings and actionable bug reports. It runs on every GitHub pull request and on a schedule against production, aiming to catch broken flows before customers do.
Greptile
Greptile is an AI code review company that builds agents which read a pull request against the full context of a codebase - not just the diff. It indexes a repository into a graph of files, functions and dependencies, then runs parallel agents to catch bugs, anti-patterns and security risks, leaving inline comments and PR summaries. Founded in 2023 by three Georgia Tech alumni and backed by Y Combinator, Initialized Capital and Benchmark, Greptile has reviewed over a billion lines of code for teams including Brex, Substack and Retool.