opensea
(2)
Alex Atallah
Alex Atallah is the CEO and co-founder of OpenRouter, the unified API and marketplace that routes developer requests across hundreds of large language models. He previously co-founded OpenSea, the NFT marketplace, where he was CTO before leaving in 2022 to build from zero to one again. A Stanford computer scientist and Palantir alum, he turned a side project that connected browsers to AI models into infrastructure now routing roughly 25 trillion tokens a week, and raised a $113M Series B in 2026.
Brian Roberts
Brian Roberts is a General Partner at Andreessen Horowitz (a16z), where he works across the American Dynamism and AI Apps funds. Known as BK to those in the know, Roberts is a serial CFO turned investor who took Lyft public at a $24 billion valuation, helped Splunk get acquired by Cisco for $28 billion, and was OpenSea's first CFO during the NFT boom. With 30+ years spanning investment banking at Evercore, corporate development at Microsoft and Walmart, and C-suite finance roles at some of tech's most pivotal companies, he joined a16z in October 2024 to bring an operator's lens to early and growth-stage investments in enterprise software, fintech, and America's strategic tech infrastructure.