- AngelList; Founder and CEO, Chairman
- He previously co-founded Epinions (which went public as part of Shopping.com) and Vast.com. He is an active Angel investor, including Twitter, Uber, Yammer, Stack Overflow and Wanelo.”
- Adviser at Stellar
- Algorand; advisor (12-2-2020)
- BloXroute; advisor
- Celo; advisor and investor (24-6-2021).
- Agoric. Has funded (21-2-2020) Agoric.
- Anchor; Do Kwon mentioned them as part of a $20M raise, calling the participants the 'Anchor whales' (16-3-2021)
- Anchorage. Invested in Anchorage and is also an advisor on their team
- dYdX. Participated in a $10M Series A round investing in dYdX
- Fei Protocol; part of a $19M raise (9-3-2021).
- InstaDapp. Was part of a $2.4M seed round (1-10-2019) in InstaDapp.
- Gitcoin; was part of a $11.4M raise for them (14-4-2021).
- Kine; listed as one of the backers (15-3-2021).
- OpenSea; part of a $23M raise (18-3-2021).
- Polymarket. Participated in a $4M raise for Polymarket (19-10-2020).
- Radicle; one of the backers named as an early supporter (17-2-2021).
- SIREN Markets; part of a $4M raise (2-3-2021).
- StarkWare; according to DeFi Weekly (9-3-2021).
- Investor in ZCash