OpenAI Startup Fund
VC Fund
San Francisco, United States
OpenAI Startup Fund is a VC fund in San Francisco focused on Artificial Intelligence and Software. OpenAI Startup Fund invests in startups, especially in artificial intelligence companies.
- Total investments:
- 50
- Last investment:
- Lead investor:
- 40%
- Fund size:
- $44M
- Last fund:
Last updated:
For AI agents: llms.txt
Industries OpenAI Startup Fund invests in
Stages OpenAI Startup Fund invests in
Countries OpenAI Startup Fund invests in
Round sizes
Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Round size
- Seed
- $3.5M–$10M
- Series A
- $12M–$400M
- Series B
- $20M–$81M
Investment Focus
Industry
- Artificial Intelligence 17 (34%)
- Software 6 (12%)
- Information Technology 5 (10%)
- Machine Learning 4 (8%)
- Health Care 3 (6%)
Stage
- Seed 11 (22%)
- Series A 9 (18%)
- Series B 7 (14%)
- Series C 2 (4%)
- Series E 2 (4%)
Country
- United States 20 (40%)
- Canada 1 (2%)
- Norway 1 (2%)
Team
| Name | Title | Investments | Links | |
|---|---|---|---|---|
Ian Hathaway
Partner
|
Partner | Total investments: 13 | Find email |
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Biossil is an applied AI drug discovery platform to create specialized treatments for distinct patients. | $153M / Venture - Series Unknown / Sep 28, 2026 | ||
| Adaptive Security is a computer network security company that focuses on deepfake attacks and provides cybersecurity services. | $81M / Series B / Dec 16, 2025 | ||
| Accounting software that does the work for you | $10M / Seed / Nov 03, 2025 | ||
| Harvey is an artificial intelligence technology service provider. | $59M / Series E / Oct 06, 2025 | ||
| Endex is an innovative AI agent designed to work natively within Excel, significantly speeding up financial modeling and data analysis, transforming tasks that traditionally took hours into minutes. The company is supported by OpenAI's technology, improving operational efficiency by utilizing advanced AI models, thus enabling more detailedworkflows with reduced latency. | $14M / Aug 06, 2025 | ||
| Endex is an innovative AI agent designed to work natively within Excel, significantly speeding up financial modeling and data analysis, transforming tasks that traditionally took hours into minutes. The company is supported by OpenAI's technology, improving operational efficiency by utilizing advanced AI models, thus enabling more detailedworkflows with reduced latency. | $14M / Venture - Series Unknown / Aug 06, 2025 | ||
| The Modern B2B Marketing Automation Platform | $28M / Series A / Jul 30, 2025 | ||
| Conversion provides AI-powered tools to help businesses create and manage online ad campaigns and websites. The platform includes features like Adwin, which automates the creation, management, and optimization of Google ad campaigns, and Crafta, which assists in building and optimizing websites for small businesses. These tools aim to enhanceonline presence and improve SEO without requiring extensive manual effort from users. | $28M / Series A / Jul 30, 2025 | ||
| Ambience Healthcare develops an AI operating system used for documentation, coding, and clinical workflows in healthcare settings. The company builds an AI medical scribe that captures clinician-patient conversations in real time and converts them into clinical notes. Its scribe tool includes speech recognition, real-time documentation, and AIfeatures designed to integrate with electronic medical record systems. The tool generates notes within seconds and allows customization based on user preferences. | $243M / Series C / Jul 29, 2025 | ||
| Our vision is to reinvent how outbound sales works. | $40M / Series B / Jul 15, 2025 | ||
| See all 50 investments → | |||
Co-Investors
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FAQ
What does OpenAI Startup Fund invest in?
OpenAI Startup Fund invests primarily in Artificial Intelligence, Software and Information Technology startups, most often at Seed and Series A stage. Most of the 50 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What round sizes does OpenAI Startup Fund invest in?
OpenAI Startup Fund typically joins rounds of $3.5M–$10M at Seed, $12M–$400M at Series A and $20M–$81M at Series B. These are whole funding-round sizes, not OpenAI Startup Fund's own check, which is rarely disclosed: the 10th–90th percentile of the confirmed public funding rounds OpenAI Startup Fund took part in.
How do I contact OpenAI Startup Fund?
Public channels for OpenAI Startup Fund include the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
Who are the partners at OpenAI Startup Fund?
The team at OpenAI Startup Fund includes Ian Hathaway (Partner). The Team section lists each member with their title, investment count and links.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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