Key facts
- It has raised $790.0M; the latest was PE Growth/Expansion in Oct 2025.
- Notable investors include Hull Street Energy.
- Status: Privately Held (backing).
Investors
1- ·The complete investor list — 1 names
- ·Watchlist + deal alerts for Flatiron Energy
- ·The full record, as it builds
Funding rounds
No funding rounds for Flatiron Energy are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About Flatiron Energy
Provider of energy storage construction services intended to develop utility-scale energy storage projects. The company focuses on developing, owning, and operating utility-scale energy storage systems to meet the needs of the decarbonizing electric grid, thereby helping landowners, utilities, and local community organizations to achieve a carbon-free electricity grid and reduce harmful emissions that contribute to climate change and environmental injustice.
- Sector
- Business Products and Services (B2B)
- HQ
- Boulder, CO, United States
- Founded
- 2021
- Employees
- 30
- Website
- flatiron.energy/
- Ownership
- Privately Held (backing)
Flatiron Energy doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in Flatiron Energy shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on Flatiron Energy in its N-PORT filings yet. We sweep new filings monthly.