Meticulous builds a fully autonomous end-to-end testing platform for web frontends. Engineering teams install a lightweight recorder script that captures real user sessions in development and staging. From those sessions, Meticulous automatically generates and continuously maintains a comprehensive visual test suite — covering every user flow and edge case across a codebase — without developers writing or maintaining a single test. On every pull request, the platform replays those flows, detects visual and behavioral regressions down to the pixel level, and posts results in under two minutes. The core thesis: AI coding agents now generate code faster than any team can review it, so testing becomes the new bottleneck. Meticulous positions itself as the quality gate that makes shipping AI-generated code safe. Customers include Dropbox, Wiz, Notion, and Mercor. The company is profitable and claims to be 10x-ing ARR annually. Founded in 2021 by brothers Gabriel Spencer-Harper (ex-Dropbox) and Quentin Spencer-Harper (ex-Palantir, decade leading Foundry frontend).