# Justin Heyman

> Justin Heyman is a Series A investor at Rock Creek (Washington) backing Water and Battery. See 2 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Rock Creek](https://shizune.co/investors/profile/the-rock-creek-group)
- Location: Washington, United States
- Total investments: 2
- Last investment: Apr 2024
- Lead investor: 100%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/justin-heyman
- Facebook: https://www.facebook.com/jgheyman

Justin Heyman is a managing director of RockCreek. He previously worked at Global Environment Fund as a Managing Director. Justin Heyman attended Columbia Business School.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Water | 1 | 50% |
| Battery | 1 | 50% |
| Mineral | 1 | 50% |
| Software | 1 | 50% |
| Electronics | 1 | 50% |

6 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series A | 1 | 50% |
| Venture - Series Unknown | 1 | 50% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Renewance | Renewance is an electronic company that provides software solutions, consultancy, and project management services to manage the battery end of life liabilities. It offers an online platform that connects clients with defect or end-of-life industrial batteries with logistics providers and battery recyclers.The company was founded in 2016 andheadquartered in Chicago, Illinois. |  | Series A | Apr 10, 2024 |  |
| Raven | Raven is a producer of green hydrogen and synthetic fuels using organic waste. They transform waste destined for landfills into environmentally friendly, efficient, and profitable clean hydrogen and Fischer-Tropsch synthetic fuels with our patented Steam/CO2 Reformer technology. Raven was in 2018 and is based in Pinedale, Wyoming. |  | Venture - Series Unknown | Jul 25, 2023 |  |

2 of 2 investments shown.

## Co-investors
- [Evergreen Climate Innovations](https://shizune.co/investors/profile/clean-energy-trust-2) — VC Fund, 1 deal together
- [IMM Investment](https://shizune.co/investors/profile/imm-investment) — VC Fund, 1 deal together

## About Rock Creek

VC Fund · Washington, United States

Rock Creek is a leading, highly respected global investment and advisory firm that provides our investors with solutions

5 contacts available at Rock Creek.

| Name | Title | Profile |
| --- | --- | --- |
| Jessica P. Einhorn | Member of the Advisory Board | https://shizune.co/investors/profile/jessica-p-einhorn |
| Anahita Smeets | Managing Director | https://shizune.co/investors/profile/anahita-smeets |
| Justin Heyman | Managing Director | https://shizune.co/investors/profile/justin-heyman-c91a |
| Kathleen Townsend | Director | https://shizune.co/investors/profile/kathleen-townsend |
| Maria Woodman | Principal | https://shizune.co/investors/profile/maria-woodman-3133 |

## 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
- [General Catalyst](https://shizune.co/investors/profile/general-catalyst-partners) — VC Fund

## FAQ

### What does Justin Heyman invest in?

Justin Heyman invests primarily in Water, Battery and Mineral startups, most often at Series A and Venture - Series Unknown stage. Most of the 2 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 Justin Heyman last invest?

The most recent investment recorded for Justin Heyman closed in Apr 2024. Shizune tracks 2 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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