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 366 out of 1000 (an Excellent rating) as of September 2026, ranking #696 (top 0.5%) among 486,860 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 848,794 followers as of September 2026 and has published 53,077 posts. He has been mentioned by 392 accounts a total of 745 times.
As an angel investor, Guillermo Rauch has backed Magic Labs, Tenderly, Artificial Analysis, Dub.co, ComfyUI, Pocket, Nell and Superlogical.
Who follows Guillermo Rauch on X?
The accounts that follow Guillermo Rauch include 1,778 founders, 425 angel investors, 311 influencers and 23 VCs. Among his notable followers are Balaji, Marc Andreessen, Nikita Bier, Sam Altman, Ansem and Toly.