# John Serafini

> John Serafini is a seed investor at HawkEye 360 (Boston) backing Wireless and Energy. See 4 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [HawkEye 360](https://shizune.co/investors/profile/hawkeye-360-2)
- Location: Boston, United States
- Total investments: 4
- Last investment: Nov 2016
- Lead investor: 75%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/john-serafini-950793a

John Serafini is a seed investor at HawkEye 360 in Boston focused on Wireless and Energy. John Serafini is based out of Herndon, Virginia and is the Founder & CEO of HawkEye 360. John previously worked at BridgeComm as a Board Member. John Serafini attended the Harvard Business School.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Wireless | 2 | 50% |
| Energy | 1 | 25% |
| Aerospace | 1 | 25% |
| Analytics | 1 | 25% |
| Space Travel | 1 | 25% |

7 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 2 | 50% |
| Series A | 2 | 50% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Star Catcher | Star Catcher creates first energy grid for space. Star Catcher's orbital infrastructure will transform how satellites are powered. | $65M | Series A | May 12, 2026 |  |
| HawkEye 360 | HawkEye 360 is a data analytics company that develops space-based radio frequency mapping. The company operates a commercial satellite constellation to identify, process, and geolocate a broad set of RF signals. Its products include maritime domain awareness and spectrum mapping and monitoring; our customers include a wide range of commercial,government, and international entities.It was founded in 2015 and is headquartered in Herndon, Virginia. | $11M | Series A | Nov 28, 2016 |  |
| HawkEye 360 | HawkEye 360 is a data analytics company that develops space-based radio frequency mapping. The company operates a commercial satellite constellation to identify, process, and geolocate a broad set of RF signals. Its products include maritime domain awareness and spectrum mapping and monitoring; our customers include a wide range of commercial,government, and international entities.It was founded in 2015 and is headquartered in Herndon, Virginia. |  | Seed |  |  |
| BridgeComm | BridgeComm is a satellite communications company that provide high-bandwidth and security solutions . |  | Seed |  |  |

4 of 4 investments shown.

## Co-investors
- [B Capital](https://shizune.co/investors/profile/b-capital-group) — VC Fund, 2 deals together
- [Cerberus Ventures](https://shizune.co/investors/profile/cerberus-ventures) — VC Fund, 1 deal together
- [GreatPoint Ventures](https://shizune.co/investors/profile/greatpoint-ventures) — VC Fund, 1 deal together
- [Helena](https://shizune.co/investors/profile/helena-bf81) — VC Fund, 1 deal together
- [MVP Ventures](https://shizune.co/investors/profile/modern-venture-partners) — VC Fund, 1 deal together
- [Oceans](https://shizune.co/investors/profile/oceans-9747) — VC Fund, 1 deal together

## About HawkEye 360

VC Fund · Herndon, United States

HawkEye 360 is a data analytics company that develops space-based radio frequency mapping. The company operates a commercial satellite constellation to identify, process, and geolocate a broad set of RF signals. Its products include maritime domain awareness and spectrum mapping and monitoring; our customers include a wide range of commercial,government, and international entities.It was founded in 2015 and is headquartered in Herndon, Virginia.

4 contacts available at HawkEye 360.

| Name | Title | Profile |
| --- | --- | --- |
| John Serafini | Founder & CEO | https://shizune.co/investors/profile/john-serafini |
| Alison Alfers | Chief Legal Officer | https://shizune.co/investors/profile/alison-alfers |
| Beau Jarvis | Chief Revenue Officer | https://shizune.co/investors/profile/beau-jarvis |
| Rob Rainhart | Senior Vice President, Engineering | https://shizune.co/investors/profile/rob-rainhart |

## 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 John Serafini invest in?

John Serafini invests primarily in Wireless, Energy and Aerospace startups, most often at Seed and Series A stage. Most of the 4 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 John Serafini last invest?

The most recent investment recorded for John Serafini closed in Nov 2016. Shizune tracks 4 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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