# Fortistar

Fortistar is a Private Equity based in White Plains, United States.

## Overview

- **Organization type:** Private Equity
- **Headquarters:** White Plains, United States
- **Region:** North America
- **Address:** White Plains, NY, United States
- **Founded:** 1993
- **Assets under management:** Undisclosed
- **Website:** www.fortistar.com
- **LinkedIn:** https://www.linkedin.com/company/fortistar

## Regulatory record

- **Reports private funds:** No

## About

Fortistar is a private investment and energy asset management firm. It has invested in and managed a portfolio of sustainable and clean energy generation projects in the U.S. and Canada. Fortistar has made 13 investments, including a Series F - II investment in Nanoramic on November 17, 2025.

## Sectors

- Energy Transition & Renewables
- ClimateTech
- Mobility & Transportation
- Industrial Tech
- AgriTech & FoodTech
- Robotics & Automation
- SpaceTech

## Questions

### What is Fortistar's relationship to OPAL Fuels?

OPAL Fuels is a Fortistar portfolio company and the firm's most visible asset. Fortistar incubated the vertically integrated renewable natural gas platform and took it public on Nasdaq in 2022 through a business combination with a special-purpose acquisition company. OPAL Fuels captures methane emissions from landfills and dairy farms, processes it into RNG, and distributes the fuel through a network of company-owned heavy-duty truck fueling stations.

### Does Fortistar invest in early-stage companies or only mature infrastructure?

Fortistar maintains both infrastructure-heavy operating platforms and early-stage technology investments. The portfolio includes mature cogeneration assets through Generational Power and emissions-capture plants via Carbonfree Chemicals, alongside venture-stage companies such as Nanoramic Laboratories, which commercialized electrode technology from MIT, and Skyryse, a flight-automation startup backed by Fidelity and Venrock.

### Which sectors does Fortistar explicitly target?

The firm concentrates on decarbonization across energy, transportation, and industrials. Specific subsectors include renewable natural gas, hydrogen generation, carbon capture and utilization, energy storage, EV battery components, advanced plastics recycling, vertical farming, sustainable aviation, and biopesticides.

### Does Fortistar disclose assets under management or fund structures?

No. Fortistar does not publicly report assets under management, total capital deployment, or the structure of its investment vehicles. The firm's website provides no detail on fund families, closed commitments, or limited partner relationships.

### Who runs investment decisions at Fortistar?

Fortistar does not publicly list its investment committee, managing partners, or senior leadership on its website. No named principals were identified from primary-source materials.

## Related profiles

- [Fortissimo Capital](https://altss.com/profile/fortissimo-capital)
- [Fortitude Capital](https://altss.com/profile/fortitude-capital)

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Last updated: 2026-06-03T20:00:00.000Z

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