Velt

Velt is a San Francisco developer-tools startup that ships a full-stack SDK and APIs letting product teams embed contextual comments, notifications, presence, async recordings, huddles, and CRDT-based multiplayer editing directly inside their apps in days rather than months. Founded in 2020 by ex-Google product manager Rakesh Goyal and part of Y Combinator's W22 batch, Velt has evolved from a general collaboration toolkit into a review-and-approval layer where AI and humans review work together and nothing ships until a human approves. It is developer-first, enterprise-ready (SOC 2 Type II, HIPAA), and used by companies including Google, Pendo, HeyGen, and LambdaTest.