Jason Choi is a Hong Kong-based crypto investor and podcaster best known as the former General Partner at The Spartan Group, a digital asset investment firm with operations across Hong Kong and Singapore. He left his role at Spartan around 2022 to focus on independent angel investing and content creation, maintaining a public profile through active commentary on market conditions and early-stage projects.
Choi gained wide recognition as the host of The Blockcrunch Podcast, one of the longer-running interview-format shows in crypto, where he interviewed founders, researchers, and investors from across the industry. The podcast gave him early access to many teams before they raised public rounds, informing his investment thesis around infrastructure and DeFi primitives. His investment approach as an angel leans toward pre-seed and seed stage, typically at the intersection of DeFi, Layer 1 and Layer 2 networks, and decentralized infrastructure.
Notable investments
Public information about Jason Choi's full angel portfolio is limited. As an independent angel, he does not regularly disclose deal terms or the complete list of projects he has backed. His known areas of focus – informed by his Spartan Group years and podcast work – include DeFi protocols, cross-chain infrastructure, and consumer crypto applications. Only a small number of his investments have been publicly confirmed, and the five portfolio entries attributed to him in public databases likely represent a fraction of his actual activity.
Team
Jason Choi operates as a solo angel investor following his departure from The Spartan Group. During his tenure at Spartan, he worked alongside co-founders Kelvin Koh and Casper Johansen, who continue to lead that firm. As an independent, Choi does not have a stated team structure. He co-invests with other angels and funds on a deal-by-deal basis.
Recent activity
Since 2023, Choi has maintained a presence on X (formerly Twitter) as one of the more followed independent voices in crypto, with commentary covering macro conditions, protocol launches, and market structure. He has been vocal about risk management and the importance of fundamental analysis in a sector dominated by narrative-driven speculation. Specific deal announcements from 2024 and 2025 have not been widely publicized, which is consistent with his style as a quiet, thesis-driven angel rather than a marketing-forward fund.
Given his background at one of Asia's more established crypto investment firms and his decade-long engagement with the founder community through Blockcrunch, Choi remains a recognizable name for early-stage teams seeking capital with operational experience attached. His geographic focus is Asia-Pacific, with a particular emphasis on Hong Kong and Singapore as deal-flow hubs, though his portfolio likely spans global projects. Public information on total deployed capital or AUM is not available, as angel activity of this kind is rarely disclosed formally.
