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Ian Hathaway
Ian Hathaway
Partner at OpenAI Startup Fund · San Francisco
Active now
Check size
Recent cheques $8M–$300M
Lead stage
seed
Deals tracked
27
Sectors
AI, Healthcare
AI Healthcare Legal Tech Education Energy Infrastructure seed Series A Early-stage Seed
United States San Francisco Bay Area

About Ian
Ian Hathaway is an Executive Officer at OpenAI Startup Fund II, L.P., a venture capital fund focused on artificial intelligence and machine learning investments. As an active allocator, he has deployed $400.0M across the fund's portfolio. Hathaway specializes in identifying and supporting AI/ML-focused startups at various stages of development
Investment thesis
Partners with early-stage AI companies building transformative applications across high-impact sectors.
Ian Hathaway leads OpenAI's venture investing strategy, deploying capital into early-stage AI startups where artificial intelligence can create transformative step-change improvements in regulated, high-margin sectors. The fund targets healthcare, law, education, energy, and infrastructure, where distribution, trust, regulatory integration, and domain expertise matter as much as model performance. Hathaway functions as both capital provider and technical partner, collapsing the traditional gap between financial backing and commercial infrastructure access by leveraging OpenAI's platform capabilities. The fund invests in companies building AI-native solutions for professional workflows and critical infrastructure, often securing early access to specialized model variants and technical support as part of its strategic value proposition
Investment philosophy
Focused on early-stage AI startups where AI can create step-change improvements in healthcare, law, education, energy, infrastructure, and related fields. Hathaway has also overseen the OpenAI accelerator program, Converge, and has led investments in companies such as Harvey, Cursor, Ambience Healthcare, Speak, and Descript.
Investment focus
Hathaway focuses on venture capital investments in artificial intelligence and machine learning companies. His allocation strategy emphasizes backing founders building transformative AI/ML technologies
Areas of expertise
AI/ML Venture Capital Deep Tech Startup Investing Technology
Recent activity
October 2023 AI coding startup; led seed round
2024 AI-native legal workflows; early backer
2024-2025 Clinical administration automation
2024-2025 Workplace intelligence and monitoring
April 2025 UK blockchain and high-performance computing provider
Aug 2026 Filed Form D — Investment vehicle · $400,000,000 raised
Live platform data · proprietary, citable layer
Notable portfolio
Cursor (Anysphere) Harvey Descript Mem Speak Ambience Healthcare Worktrace AI XY Miners Kick Unify Adaptive Figure AI Physical Intelligence Cursor

Frequently asked
Does Ian Hathaway invest at seed stage?
Yes. They invest at seed, Series A, Early-stage stage. Their geographic focus includes United States, San Francisco Bay Area.
What is their typical check size?
Ian Hathaway's typical check size is Recent cheques $8M–$300M. They currently invest through OpenAI Startup Fund.
What sectors does Ian Hathaway focus on?
Ian Hathaway primarily invests in AI, Healthcare, Legal Tech, Education.

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