Meticulous

Meticulous builds software that automatically writes and maintains end-to-end frontend browser tests, so engineering teams get test coverage without manually authoring or updating tests. Founded in 2021 by Gabriel and Quentin Spencer-Harper, the London-based, Y Combinator-backed company records real user sessions and auto-generates visual regression tests that adapt as the application changes. The product targets frontend and full-stack developers seeking reliable coverage with minimal maintenance overhead. Meticulous has raised about $4M in seed funding. Investors include Coatue, Soma Capital, Y Combinator, and angels such as Vercel founder Guillermo Rauch and Adobe's Scott Belsky.