Justin Barlow is a blockchain executive and venture partner who serves as Executive Director of the Sei Development Foundation, an independent U.S. nonprofit dedicated to the advancement and adoption of Sei. Justin's Twitter Score is 242 out of 1000 (an Excellent rating) as of July 2026, ranking #1,831 (top 0.5%) among 389,587 tracked accounts.
Justin works at Sei Development Foundation, a role announced in April 2025 when Sei launched the U.S.-based foundation. Sei is a Layer 1 blockchain that combines Ethereum's development standard with Solana's performance, having launched its mainnet in 2023. The Sei ecosystem has received backing from Multicoin, Jump, and Coinbase Ventures. Justin also works at Faction VC as a Venture Partner, and previously worked at Solana. Justin is also a two-time founder.
Justin's account has accumulated 17,373 followers as of July 2026 and 4,767 posts. Justin has been mentioned by 57 accounts a total of 100 times.
Who follows Justin on X?
The accounts that follow Justin include 627 founders, 206 angel investors, 462 influencers and 19 VCs, among them Toly, Laura Shin, Ansem, Chris Burniske, Threadguy and Mert.