# Jason Portnoy

> Jason Portnoy is a seed investor at Oakhouse Partners backing Robotics and 3D Printing. See 3 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Oakhouse Partners](https://shizune.co/investors/profile/oakhousepartners)
- Total investments: 3
- Last investment: Aug 2021
- Lead investor: 33%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/jasonportnoy/

Jason Portnoy is a seed investor at Oakhouse Partners focused on Robotics and 3D Printing. Jason Portnoy

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Robotics | 1 | 33% |
| 3D Printing | 1 | 33% |
| Mechanical Design | 1 | 33% |
| Advanced Materials | 1 | 33% |

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 1 | 33% |
| Series A | 1 | 33% |
| Series B | 1 | 33% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| ICON | ICON develops advanced construction technologies that advance humanity. Using proprietary 3D printing robotics, software, and advanced materials, ICON is shifting the paradigm of home building on Earth and beyond. The company was founded in 2017 and is headquartered in Austin, Texas. | $207M | Series B | Aug 24, 2021 |  |
| ICON | ICON develops advanced construction technologies that advance humanity. Using proprietary 3D printing robotics, software, and advanced materials, ICON is shifting the paradigm of home building on Earth and beyond. The company was founded in 2017 and is headquartered in Austin, Texas. | $35M | Series A | Aug 19, 2020 |  |
| ICON | ICON develops advanced construction technologies that advance humanity. Using proprietary 3D printing robotics, software, and advanced materials, ICON is shifting the paradigm of home building on Earth and beyond. The company was founded in 2017 and is headquartered in Austin, Texas. | $9M | Seed | Oct 17, 2018 |  |

3 of 3 investments shown.

## Co-investors
- [Citi Impact Fund](https://shizune.co/investors/profile/citi-impact-fund) — VC Fund, 3 deals together
- [Moderne Ventures](https://shizune.co/investors/profile/moderne-ventures) — VC Fund, 3 deals together
- [CAZ Investments](https://shizune.co/investors/profile/caz-investments) — VC Fund, 2 deals together
- [Ensemble VC](https://shizune.co/investors/profile/ensemble-7d23) — VC Fund, 2 deals together
- [Trust Ventures](https://shizune.co/investors/profile/trust-ventures) — VC Fund, 2 deals together
- [Vulcan Capital](https://shizune.co/investors/profile/vulcan-capital) — VC Fund, 2 deals together

## About Oakhouse Partners

VC Fund · San Francisco, United States

Oakhouse Partners invests in companies that use breakthrough technologies to radically improve millions of lives. We believe mission-driven companies who better humanity on a global scale produce the best VC returns. Oakhouse Partners is no longer actively investing.

5 contacts available at Oakhouse Partners.

| Name | Title | Profile |
| --- | --- | --- |
| Andrew Maguire | Investing Partner | https://shizune.co/investors/profile/andrew-maguire |
| Stephanie Fernandez | Director of Operations | https://shizune.co/investors/profile/stephanie-fernandez |
| Jason Portnoy | Managing Partner | https://shizune.co/investors/profile/jason-portnoy |
| Jason Portnoy | Founder and Managing Partner | https://shizune.co/investors/profile/jason-portnoy-be46 |
| Jason Portnoy | Managing Director of the General Partner | https://shizune.co/investors/profile/jason-portnoy-a28f |

## Similar investors

### Similar stage
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund
- [Right Side Capital Management](https://shizune.co/investors/profile/right-side-capital-management) — VC Fund

## FAQ

### What does Jason Portnoy invest in?

Jason Portnoy invests primarily in Robotics, 3D Printing and Mechanical Design startups, most often at Seed and Series A stage. Most of the 3 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Jason Portnoy last invest?

The most recent investment recorded for Jason Portnoy closed in Aug 2021. Shizune tracks 3 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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