Paul Graham
Co-Founder & Partner @ Y Combinator
Mountain View, United States
Paul Graham is a seed investor at Y Combinator in Mountain View focused on Artificial Intelligence and Software. Paul Graham is the Founder of Y Combinator.
- Total investments:
- 91
- Last investment:
- Lead investor:
- 8%
Last updated:
For AI agents: llms.txt
Industries Paul Graham invests in
Stages Paul Graham invests in
Countries Paul Graham invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Seed
- $1M–$13M
- Angel
- $70k–$700k
- Series A
- $3.5M–$30M
Investment Focus
Industry
- Artificial Intelligence 26 (29%)
- Software 25 (27%)
- SaaS 8 (9%)
- Developer Tools 8 (9%)
- Information Technology 7 (8%)
Stage
- Seed 57 (63%)
- Series A 11 (12%)
- Angel 6 (7%)
- Series B 4 (4%)
- Pre-Seed 3 (3%)
Country
- United States 64 (70%)
- Canada 2 (2%)
- Egypt 1 (1%)
- India 1 (1%)
- Kazakhstan 1 (1%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Molagri is an agricultural biotechnology company that develops crop protection solutions using biological approaches, focusing on products such as bioinsecticides to help manage pests and support crop health in agriculture. | $5.8M / Seed / Oct 14, 2026 | ||
| Hop Aero develops hypersonic rocket cargo systems that provide rapid point-to-point delivery across long distances. The company focuses on rocket cargo vehicles designed to transport supplies to austere and contested locations within minutes. Its systems aim to support logistics operations that require fast response times and resilient supply chains. Hop Aero positions its technology as part of a broader physical internet concept, enabling high-speed movement of physical goods similar to data on the internet. The company targets users that need time-critical delivery capabilities in challenging operational environments. | $11M / Seed / Sep 30, 2026 | ||
| Solva automates insurance claims by deploying AI agents that assess claims, detect leakage and fraud, and eliminate repetitive manual tasks. | $6M / Seed / Aug 21, 2026 | ||
| Apollo Atomics is the developer of a nuclear technology designed to provide sustainable power and to meet energy demands with deployment. | $26M / Seed / Aug 20, 2026 | ||
| AI agents that discover new materials for semiconductor chips. | $9M / Seed / Aug 10, 2026 | ||
| Kopra Bio is a Biotechnology Research firm offering that cure cancer through viral immunotherapy technology. | $9.1M / Seed / Jun 16, 2026 | ||
| Luel develops AI training data marketplace that supplies training datasets to connect AI enterprises and content contributors. | $31M / Seed / May 15, 2026 | ||
| AgentMail provides an API-first email platform that enables AI agents to send, receive, and manage emails with automation and analytics. | $6M / Seed / Mar 10, 2026 | ||
| QFEX is the 24/7 exchange for traditional financial markets. We let you trade US equities, commodities and FX pairs with (or without) leverages of up to 50x. On QFEX, UX comes first: brokerless market access, seamless integration with traditional payment rails, and ultra-efficient Perpetual Futures offered over all asset classes. Trading hasnever been simpler or cheaper than with QFEX.Founded by Quants and Engineers from Citadel & Tower Research who saw an opportunity to make markets how they always should have been, QFEX will eventually replace the entire $100 billion exchange and clearing industry. | $9.5M / Seed / Mar 05, 2026 | ||
| Autosana offers an AI-powered mobile app quality assurance platform that automates end-to-end testing using natural language instructions. Teams can describe test scenarios without writing code, and Autosana generates and runs the tests across iOS and Android environments. The tool integrates with CI/CD pipelines, adapts to interface changesthrough self-healing tests, and provides session replays for visual verification and debugging. It supports app frameworks like React Native, Flutter, Swift, and Kotlin, aiming to reduce the time and effort spent on manual or brittle automated testing. | $2.7M / Seed / Feb 17, 2026 | ||
| See all 91 investments → | |||
Co-Investors
About Y Combinator
Y Combinator invests a standard amount of capital in exchange for equity and through uncapped safe agreements. Participants engage in a three-month intensive cycle that focuses on product development and preparations for fundraising. The firm offers access to a private networking platform for knowledge sharing and hosts events featuring speakers from various sectors. This program culminates in a presentation event where founders showcase their businesses to a curated group of investors.
Y Combinator Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Boris Jabes
Visiting Partner
|
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Luther Lowe
Head of Public Policy
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Max Kolysh
Visiting Partner
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Brad Flora
Group Partner
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Calvin French-Owen
Visiting Group Partner
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FAQ
What does Paul Graham invest in?
Paul Graham invests primarily in Artificial Intelligence, Software and SaaS startups, most often at Seed and Series A stage. Most of the 91 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 Paul Graham invest in?
Paul Graham typically joins rounds of $1M–$13M at Seed, $70k–$700k at Angel and $3.5M–$30M at Series A. These are whole funding-round sizes, not Paul Graham's own check, which is rarely disclosed: the 10th–90th percentile of the confirmed public funding rounds Paul Graham took part in.
How do I contact Paul Graham?
Public channels for Paul Graham include LinkedIn, X (Twitter) and 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.
When did Paul Graham last invest?
The most recent investment recorded for Paul Graham closed in Oct 2026. Shizune tracks 91 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.
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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