# Emmett Shear

> Emmett Shear is a seed investor at OpenAI (San Francisco) backing Software and Health Care. See 37 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [OpenAI](https://shizune.co/investors/profile/openai)
- Location: San Francisco, United States
- Total investments: 37
- Last investment: Dec 2025
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/emmettshear/
- X (Twitter): http://twitter.com/eshear

Emmett Shear is a seed investor at OpenAI in San Francisco focused on Software and Health Care. Emmett Shear was the Founder and CEO of Twitch (www.twitch.tv), the world’s leading video platform and community for gamers. Mr. Shear was also a Co-Founder of Justin.tv and a part-time Partner at venture capital firm Y Combinator, where he advises fledgling startups on product and strategy. Mr. Shear graduated from Yale University in 2005 and in2012 was included in Forbes Magazine on their 30 under 30 list. Twitch launched in 2011, and in 2014 The Wall Street Journal cited the brand as having the 4th largest peak internet traffic in the U.S.

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $1M–$11M |
| Angel | $950k–$60M |
| Series A | $6.5M–$17M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 8 | 22% |
| Health Care | 6 | 16% |
| Information Technology | 5 | 14% |
| Artificial Intelligence | 5 | 14% |
| Gaming | 3 | 8% |

82 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 23 | 62% |
| Series A | 5 | 14% |
| Angel | 4 | 11% |
| Funding Round | 2 | 5% |
| Pre-Seed | 1 | 3% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 29 | 78% |
| Singapore | 1 | 3% |
| United Kingdom | 1 | 3% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Lemon Slice | Lemonslice provides translation and localization services for businesses to adapt content across multiple languages and markets. | $10.5M | Seed | Dec 23, 2025 |  |
| Blueprint Bryan Johnson | Blueprint is Bryan Johnson’s protocol made accessible to everyone. Everything from measurements to protocols and therapies. | $60M | Angel | Oct 28, 2025 |  |
| DianaHR | DianaHR is an AI-Powered HR Person | $3.7M | Seed | Sep 15, 2025 |  |
| Monumental Labs | Monumental Labs is building AI-enabled robotic stone carving factories. | $9M | Seed | Jul 08, 2025 |  |
| Created by Humans | Created by Humans enables creators to sell licensing rights for AI training and be reimbursed by AI firms. | $5.5M | Seed | Jan 28, 2025 |  |
| Yuma AI | Yuma is an AI ticket assistant that integrates with people's help desk software and automates the drafting of responses. | $5M | Seed | Oct 30, 2024 |  |
| Blue | Blue is an AI-powered EHR purpose-built for healthspan/longevity practices that gives doctors superhuman abilities, synced seamlessly with a personal health superapp for me and you.Imagine a healthcare system that actually takes care of your health *in advance* rather than fumbling to pick up the pieces after things go wrong.We'repassionate about a future in which far more diseases are prevented than treated, and it's effortless to improve your day-to-day quality of life, in both well-being and performance.Science >> Snake Oil |  | Pre-Seed | Jul 04, 2024 |  |
| Forge | Forge is fast, automatic, always-on game capture. Users can download Forge for free. It costs nothing and there are zero ads, just gaming entertainment. | $11M | Seed | Oct 18, 2023 |  |
| Monumental Labs | Monumental Labs is building AI-enabled robotic stone carving factories. | $1M | Seed | Sep 26, 2023 |  |
| Pilot AI | Pilot AI operates as a tool that automatically turns call recording into structured information. | $2.2M |  | Mar 21, 2023 |  |

10 of 37 investments shown.

## Co-investors
- [Y Combinator](https://shizune.co/investors/profile/y-combinator) — VC Fund, 7 deals together
- [Caffeinated Capital](https://shizune.co/investors/profile/caffeinated-capital) — VC Fund, 6 deals together
- [Soma Capital](https://shizune.co/investors/profile/soma-capital) — VC Fund, 6 deals together
- [SV Angel](https://shizune.co/investors/profile/sv-angel) — VC Fund, 5 deals together
- [Initialized Capital](https://shizune.co/investors/profile/initialized-capital) — VC Fund, 4 deals together
- [Giant Ventures](https://shizune.co/investors/profile/giant-ventures-global) — VC Fund, 3 deals together

## About OpenAI

VC Fund · San Francisco, United States

OpenAI is an AI research and deployment company that conducts research and develops machine learning technologies. OpenAI works on projects that involve autonomous learning and task performance. It serves industries such as technology, healthcare, and education.

5 contacts available at OpenAI.

| Name | Title | Profile |
| --- | --- | --- |
| Hemal Shah | Product | https://shizune.co/investors/profile/hemal-shah |
| Hessam Bagherinezhad | Member of Technical Staff | https://shizune.co/investors/profile/hessam-bagherinezhad-b28a |
| Sarah Friar | CFO | https://shizune.co/investors/profile/sarah-friar |
| Scott Gray | Member of Technical Staff | https://shizune.co/investors/profile/scott-gray-4 |
| Venkat Venkataramani | VP of Platform Infrastructure | https://shizune.co/investors/profile/venkat-venkataramani |

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## FAQ

### What does Emmett Shear invest in?

Emmett Shear invests primarily in Software, Health Care and Information Technology startups, most often at Seed and Series A stage. Most of the 37 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Emmett Shear's check size?

Emmett Shear typically joins rounds of $1M–$11M at Seed, $950k–$60M at Angel and $6.5M–$17M at Series A. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Emmett Shear participates in.

### When did Emmett Shear last invest?

The most recent investment recorded for Emmett Shear closed in Dec 2025. Shizune tracks 37 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 Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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