# John Giampetroni

> John Giampetroni is a Series B investor at Velvet Sea Ventures backing Database and Software. See 3 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Velvet Sea Ventures](https://shizune.co/investors/profile/velvet-sea-ventures)
- Location: Palm Beach, United States
- Total investments: 3
- Last investment: Feb 2024
- Lead investor: 67%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/john-giampetroni-315b7b1bb/

John Giampetroni is a Series B investor at Velvet Sea Ventures in Palm Beach focused on Database and Software. John Giampetroni is a co-founder and member of the Investment Committee of Rizvi Traverse. John Giampetroni has over 25 years of investing experience.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Database | 1 | 33% |
| Software | 1 | 33% |
| Aerospace | 1 | 33% |
| Mapping Services | 1 | 33% |

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series B | 1 | 33% |
| Venture - Series Unknown | 1 | 33% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| LeoLabs | LeoLabs is an aerospace company that supplies and provides low Earth orbit mapping and space situational awareness services. The company's software platform offers an open API and provides the basis for a new generation of SSA and traffic safety services. LeoLabs was founded in 2015 and is headquartered in Menlo Park, CA. | $29M | Venture - Series Unknown | Feb 12, 2024 |  |
| LeoLabs | LeoLabs is an aerospace company that supplies and provides low Earth orbit mapping and space situational awareness services. The company's software platform offers an open API and provides the basis for a new generation of SSA and traffic safety services. LeoLabs was founded in 2015 and is headquartered in Menlo Park, CA. | $65M | Series B | Jun 03, 2021 |  |
| LeoLabs | LeoLabs is an aerospace company that supplies and provides low Earth orbit mapping and space situational awareness services. The company's software platform offers an open API and provides the basis for a new generation of SSA and traffic safety services. LeoLabs was founded in 2015 and is headquartered in Menlo Park, CA. | $65M | Series B | Jun 03, 2021 |  |

3 of 3 investments shown.

## Co-investors
- [Insight Partners](https://shizune.co/investors/profile/insight-partners) — VC Fund, 3 deals together
- [Space Capital](https://shizune.co/investors/profile/space-capital-partners) — VC Fund, 2 deals together
- [AngelList](https://shizune.co/investors/profile/angellist) — VC Fund, 1 deal together
- [Bossa Invest](https://shizune.co/investors/profile/bossanova-investimentos) — VC Fund, 1 deal together
- [Dolby Family Ventures](https://shizune.co/investors/profile/dolby-family-ventures) — VC Fund, 1 deal together
- [GP Bullhound](https://shizune.co/investors/profile/gp-bullhound) — VC Fund, 1 deal together

## About Velvet Sea Ventures

VC Fund · Dover, United States

Velvet Sea Ventures is a venture capital firm that helps entrepreneurs turn their visions into reality. With more than 80 years of combined experience as founders and venture investors and more than $2.2 billion invested, the firm provides seed-to-growth stage capital investments coupled with strategic support across all sectors. Velvet Seaspartners’ past investments include such notable companies as Twitter (TWTR), Square (SQ), SpaceX, Snap Inc. (SNAP), Facebook (FB), Pinterest (PINS), Domo (DOMO), Buzzfeed, Namely, Eaze, Braze, and Map Anything (CRM).

4 contacts available at Velvet Sea Ventures.

| Name | Title | Profile |
| --- | --- | --- |
| Michael Lazerow | Co-founder and Managing Partner | https://shizune.co/investors/profile/michael-lazerow |
| Audrey DiMarzo | General Counsel and Chief Compliance Officer | https://shizune.co/investors/profile/audrey-dimarzo |
| John Giampetroni | Partner | https://shizune.co/investors/profile/john-a-giampetroni |
| Kass Lazerow | Co-Founder & Partner | https://shizune.co/investors/profile/kass-lazerow |

## Similar investors

### Similar stage
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund
- [General Catalyst](https://shizune.co/investors/profile/general-catalyst-partners) — VC Fund
- [FJ Labs](https://shizune.co/investors/profile/fj-labs) — VC Fund

## FAQ

### What does John Giampetroni invest in?

John Giampetroni invests primarily in Database, Software and Aerospace startups, most often at Series B and Venture - Series Unknown 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 John Giampetroni last invest?

The most recent investment recorded for John Giampetroni closed in Feb 2024. 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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