Greg Brockman is the President, Chairman, and Co-Founder of OpenAI, where he has served since the company’s 2015 founding. See portfolio and contact routes.
Greg Brockman is the President, Chairman, and Co-Founder of OpenAI, where he has served since the company’s 2015 founding, progressing from founding engineer to CTO before assuming his current leadership role[1][2]. As an angel investor, he focuses primarily on artificial intelligence, developer tools, and SMB software, typically investing at the Pre-seed and Seed stages[5]. His stated investment range is $100,000 to $5.0 million, with a $1.5 million sweet spot, and he often participates as a follow investor rather than a lead[5]. Notable portfolio companies include Lambda, Sandbar, Uplimit, Lumos, Baseten, and Braintrust, the latter offering an AI stack for data management and evaluations[5][7]. Brockman previously served as CTO at Stripe before co-founding OpenAI, grounding his investment thesis in deep technical infrastructure experience[2][5]. While he is active on Twitter discussing AI and entrepreneurship, there is no widely cited public writing or distinctive investment philosophy beyond his focus on early-stage AI and developer ecosystems[2][4].
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