
Rowan Stone Sapien
Rowan Stone — CEO of Sapien, Rowan is leading the growth of a decentralized AI training and human‑labeling network for enterprises and LLMs. Formerly Director of On‑chain Business Development at Coinbase, he spearheaded growth initiatives across DeFi, gaming, social, and NFT products like cbETH and USDC. Rowan was COO of Totle (a DEX aggregation platform acquired by Coinbase), co‑founder of Horizen Labs (launching and scaling the Horizen ecosystem), and Managing Director at Launch Code Capital. With over a decade’s experience in engineering and energy project leadership—including a JV between Sulzer and Wood PLC—Rowan blends deep technical chops with on‑chain biz strategy. His mission at Sapien: to revolutionize AI model training through blockchain‑incentivized human annotation and scalable data infrastructure.