# Riverstone Ventures

> Riverstone Ventures is a VC fund in Nyack backing SaaS, Software and Marine Technology. See 1 investments, check sizes, portfolio. Updated Aug 2026.

- Type: VC Fund
- Location: Nyack, United States
- Total investments: 1
- Last investment: May 2024
- Lead investor: 0%
- Last updated: Aug 2026
- Website: https://www.riverstone.ventures

Riverstone Ventures is a VC fund in Nyack focused on SaaS and Software. Riverstone Ventures focuses on early stage climatetech companies.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| SaaS | 1 | 100% |
| Software | 1 | 100% |
| Marine Technology | 1 | 100% |
| Internet of Things | 1 | 100% |
| Autonomous Vehicles | 1 | 100% |

6 industries tracked in total.

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Hefring Marine | Hefring Marine is building the intelligence layer for the world’s largest untapped vehicle fleet, positioned to lead the $100B+ data-driven transformation of maritime. Our AI-powered IMAS platform delivers real-time decision intelligence to commercial, defense, recreational, and unmanned vessels, enhancing safety, fuel efficiency, and survivabilityin the most demanding environments. Already deployed across high-speed, professional, and mission-critical craft, including SAR, coast guard, defense, fisheries, pilotage, and offshore operations, IMAS is a dual-use system that combines edge AI, sensor fusion, and onboard analytics to guide operations and centralize fleet data into actionable insights. With tailored solutions for autonomy and recreational markets now underway, Hefring Marine is uniquely positioned to advance both maritime security and sustainability through deep tech innovation. We are currently raising a strategic seed extension round to grow our team and accelerate commercial momentum through 2025, with a Series A planned for early next year to scale our platform globally. | $2.4M | Venture - Series Unknown | May 21, 2024 |  |

1 of 1 investments shown.

## Co-investors
- [Innoport](https://shizune.co/investors/profile/bernhard-schulte-innoport) — VC Fund, 1 deal together
- [Faber](https://shizune.co/investors/profile/faber-ventures) — VC Fund, 1 deal together
- [Idlewild Management](https://shizune.co/investors/profile/idlewild-management) — VC Fund, 1 deal together
- [MD ONE Ventures](https://shizune.co/investors/profile/md-one-ventures) — VC Fund, 1 deal together
- [Sukna Ventures](https://shizune.co/investors/profile/sukna-ventures) — VC Fund, 1 deal together
- [Two Ravens](https://shizune.co/investors/profile/two-ravens) — VC Fund, 1 deal together

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### Similar industry
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### Similar country
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## Featured in investor lists
- [All Investors in Iceland](https://shizune.co/investors/investors-iceland)
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## FAQ

### What does Riverstone Ventures invest in?

Riverstone Ventures invests primarily in SaaS, Software and Marine Technology startups, most often at Venture - Series Unknown stage. Most of the 1 investments tracked by Shizune back companies in Iceland. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Riverstone Ventures last invest?

The most recent investment recorded for Riverstone Ventures closed in May 2024. Shizune tracks 1 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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