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 247 out of 1000 (an Excellent rating) as of August 2026, ranking #1,575 (top 0.5%) among 483,944 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 17,320 followers as of August 2026 and 4,773 posts. Justin has been mentioned by 57 accounts a total of 100 times.
Who follows Justin on X?
The accounts that follow Justin include 717 founders, 241 angel investors, 332 influencers and 8 VCs, among them Toly, Ansem, Laura Shin, Chris Burniske, Kyle Samani and Mert.