Devin Finzer is best known as co-founder and CEO of OpenSea, the peer-to-peer NFT marketplace he launched in 2017 alongside co-founder Alex Atallah. Alongside running OpenSea, he has made a small number of angel investments in early-stage Web3 and NFT-adjacent startups, with publicly tracked deal count sitting at roughly seven. His check sizes and fund structure are not disclosed publicly – he operates as an individual angel, not through a named vehicle or registered fund.
Finzer studied computer science at Brown University. Before OpenSea he co-founded Clipped, a social bookmarking tool that Pinterest acquired in 2015. He joined Pinterest as a software engineer before leaving to build OpenSea full-time. That engineering-first background shapes his investment thesis: he tends toward protocol-level infrastructure and NFT tooling rather than purely financial products.
Notable investments
Specific portfolio names from Finzer's angel activity have limited public disclosure. His investments are tracked on Crunchbase but most entries lack announced deal terms or confirmed amounts. Given his professional focus on NFT infrastructure and creator tooling through OpenSea, portfolio bets are reported to sit in adjacent Web3 verticals – NFT minting protocols, creator marketplaces, and on-chain identity projects. Public information about individual portfolio companies is limited beyond what Crunchbase aggregates from third-party sources.
Team
Finzer invests as a solo angel. There is no disclosed partnership structure or investment team. Deal sourcing appears largely relationship-driven – founders in the NFT and Ethereum ecosystem who intersect with OpenSea's network.
Recent activity
OpenSea launched a rebuilt v2 platform in early 2024 and filed confidentially for an IPO in late 2024, moves that significantly occupied Finzer's time. New angel deals announced after mid-2024 are not on the public record as of this writing. The IPO process, if completed, may increase transparency around his personal investment activity through SEC disclosures.
As one of the earliest operators in the NFT space, Finzer carries meaningful signal value for Web3 founders seeking his backing – his network spans Andreessen Horowitz, Paradigm, and the broader Ethereum developer community. His angel portfolio remains small and selective. Investors tracking the NFT infrastructure layer should watch OpenSea's IPO filing for any new disclosures on related-party investments or conflicts of interest.