How Much Did OpenAI Startup Fund Raise? Funding & Key Investors

Date August 22, 2025
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OpenAI Startup Fund

COMPANY INFO

OpenAI Startup Fund, founded in 2021 and based in San Francisco, California, is a corporate venture capital firm investing $175 million in early-stage AI startups across transformative industries such as healthcare, law, education, energy, infrastructure, and sciences. Managed by a dedicated team including Ian Hathaway and Brad Lightcap, the fund aims to empower startups that push the boundaries of artificial intelligence to have a profound, positive impact on the world. Their website is https://www.openai.fund.

How Much Did OPENAI STARTUP FUND MANAGEMENT, LLC Raise? Funding & Rounds and Investors

OPENAI STARTUP FUND MANAGEMENT, LLC, founded in 2021, is a prominent venture capital fund headquartered in San Francisco, California. Specializing in investing in early-stage artificial intelligence startups, the firm deploys its $175 million in capital across transformative industries, including healthcare, law, education, energy, infrastructure, and the sciences. The fund is managed by a dedicated team that includes Ian Hathaway and Brad Lightcap, and is affiliated with OpenAI. With a commitment to supporting startups that push the boundaries of AI for positive global impact, the OpenAI Startup Fund has become a sought-after source of growth capital for leading AI innovators.

The funding journey of the OPENAI STARTUP FUND MANAGEMENT, LLC demonstrates a strategic and diversified approach to capital formation. The fund has raised approximately $114.2 million across five Special Purpose Vehicles (SPVs) as of December 2024, following an initial fundraise of $175.25 million in 2021. Operating independently from OpenAI (which is not a direct investor), the fund leverages partnerships with major technology players like Microsoft and other strategic partners. Its funding strategy combines a mix of equity rounds and SPVs, allowing for opportunistic investments in disruptive startups. Notable investments include legal AI startup Harvey and AI note-taking app Mem. Leadership of the fund transitioned to Ian Hathaway in April 2024, marking a new phase in its investment strategy. Through its multiple funding rounds, the OPENAI STARTUP FUND MANAGEMENT, LLC continues to play a vital role in advancing artificial intelligence entrepreneurship globally.

Funding Rounds

Series F - $40B - March 31, 2025

This latest Series F round was aimed at pushing the frontiers of AI research and scaling the compute infrastructure necessary to support breakthrough advancements. The capital will further bolster investments in next-wave AI startups and infrastructure.

Conventional Debt - $4B - October 7, 2024

The debt financing round provided vital operational capital and enabled further expansion of the fund’s infrastructure, supporting the ongoing administrative and operational needs that come with a growing portfolio of investments.

Series E - $6.6B - October 2, 2024

This Series E round was executed to fuel AI research and further scale the operational infrastructure. The funding attracted a syndicate of leading global investors committed to expanding AI capabilities.

Series E - $10B - January 23, 2023

This earlier Series E round was focused on accelerating AI research and product development, as well as supporting market expansion for AI-powered solutions and startups.

Series D - $1B - July 22, 2019

A milestone Series D round facilitated critical scaling and product development initiatives, forming the foundation for subsequent high-impact investments in the AI ecosystem.

Seed - $120K - 2016

The seed round provided essential capital for the fund’s initial launch and early-stage development, setting the groundwork for its long-term growth and investment strategy.

Key Investors

Microsoft

Microsoft is a cornerstone investor in the OPENAI STARTUP FUND MANAGEMENT, LLC, playing a strategic role in its major funding rounds. As a global technology giant, Microsoft not only provides financial capital but also strategic guidance and collaboration opportunities for AI startups in the fund’s portfolio.

Other OpenAI Partners

A broad network of OpenAI partners serves as key investors for the fund, contributing not only funding but also deep AI expertise and industry knowledge. These partners help direct the fund’s investments toward startups with the highest growth and impact potential.

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