Flatiron Energy

Boulder, United States

Flatiron Energy develops, builds, owns, and operates standalone utility-scale energy storage.

$125.0M raised

Oct 2025

Debt Financing

Energy Infrastructure Renewable Energy

Top Investors

HPS Investment Partners Hull Street Energy

Founder Contacts

30,000+ verified contacts

Get Instant Access

Emails, phones & LinkedIn profiles

Frequently Asked Questions about Flatiron Energy

How much funding has Flatiron Energy raised?

Flatiron Energy has raised $125.0M in total funding. The most recent round was Debt Financing. The last funding was announced in October 2025.

Who are Flatiron Energy's investors?

Flatiron Energy's investors include HPS Investment Partners, Hull Street Energy.

Where is Flatiron Energy headquartered?

Flatiron Energy is headquartered in Boulder, United States.

What does Flatiron Energy do?

Flatiron Energy develops, builds, owns, and operates standalone utility-scale energy storage.

What stage is Flatiron Energy at?

Flatiron Energy is at the Debt Financing stage.

Cite this page

Free to use in articles, research, and reference works. Stable URL — will not change. Data on this page last updated October 29, 2025.

MLA

"Flatiron Energy — Funding & Investors." VCBacked, October 29, 2025, https://www.vcbacked.co/company/flatiron-energy. Accessed July 3, 2026.

APA

VCBacked. (2025). Flatiron Energy — Funding & Investors. Retrieved July 3, 2026, from https://www.vcbacked.co/company/flatiron-energy

Wikipedia (cite web)

{{cite web |title=Flatiron Energy — Funding & Investors |url=https://www.vcbacked.co/company/flatiron-energy |website=VCBacked |access-date=July 3, 2026}}

Profile data sourced and verified per the VCBacked methodology. Last funding round dated October 29, 2025.

Similar Companies in Energy

Zitara Technologies, Inc.

San Francisco

Nectar

San Francisco