Guillermo Rauch is a software engineer and entrepreneur who founded Vercel, the web infrastructure platform behind the modern frontend ecosystem. Guillermo Rauch's Twitter Score is 304 out of 1000 (an Excellent rating) as of July 2026, ranking #1,064 (top 0.5%) among 531,432 tracked accounts.
Guillermo Rauch founded Vercel and serves as its CEO, building it into a major platform for frontend developers. He also founded Cloudup and was previously affiliated with LearnBoost. He is affiliated with the MACH Alliance. Vercel secured a $21 million Series A in 2020 with Accel and CRV as lead investors, and went on to raise a $250 million Series E at a $3.25 billion valuation in 2024.
Guillermo Rauch co-designed and co-authored Next.js, the widely adopted React framework that underpins much of the modern web. He also authored Socket. IO, whose engine powers real-time sync in Notion and the first trading product at Coinbase. These open-source contributions established him as a significant figure in JavaScript infrastructure well before Vercel's rise. Guillermo Rauch has 690,166 followers as of July 2026 and has published 52,450 posts. He has been mentioned by 270 accounts a total of 580 times.
As an angel investor, Guillermo Rauch has backed Magic Labs, Tenderly and Artificial Analysis.
Who follows Guillermo Rauch on X?
The accounts that follow Guillermo Rauch include 1,525 founders, 301 angel investors, 335 influencers and 20 VCs. Among his notable followers are Balaji, Marc Andreessen, Sam Altman, Ansem, Toly and ZachXBT.