code-review
(4)
Canary
Canary is an AI QA engineer that reads your source code to understand developer intent, then automatically generates and runs end-to-end tests on every pull request. Instead of flaky DOM scraping or screenshot analysis, it reads the diff, works out what a change is meant to do, and tests the real user flows it touches - catching broken checkout, auth, and billing before code reaches production. Founded in 2026 by ex-Windsurf, Cognition, and Google engineers, the two-person San Francisco team is part of Y Combinator's Winter 2026 batch.
Corridor
Corridor is a San Francisco security company building an AI-native platform that embeds protection directly into AI coding workflows. Its Agentic Coding Security Management (ACSM) platform reviews every file edit and pull request in real time, catching vulnerabilities as code is generated by tools like Cursor and Claude Code rather than after it ships. Founded in 2025 by former CISA staffers Jack Cable and Ashwin Ramaswami with security veteran Alex Stamos, Corridor has raised $30.4M, including a $25M Series A at a $200M valuation in March 2026.
Cursor
Cursor is an AI-first code editor built by Anysphere, a San Francisco startup founded in 2022 by four MIT graduates. Originally a fork of Visual Studio Code, Cursor has evolved into a full agent-based development platform where autonomous AI handles everything from autocomplete to end-to-end feature building. With $2B+ in annualised revenue, over half the Fortune 500 as customers, and a valuation that reached $29.3B after its Series D in November 2025, Cursor has become the fastest-growing SaaS company ever from $1M to $500M ARR - turning the IDE from a code-writing tool into an AI orchestration layer.
Factory
Factory builds agent-native software development for enterprises. Its Droids - specialized AI agents for coding, reliability, product, and knowledge work - take tickets, write code, open PRs, and triage incidents alongside human engineers. Founded in 2023 by Matan Grinberg and Eno Reyes, the San Francisco company raised a $150M Series C in April 2026 at a $1.5B valuation led by Khosla Ventures.