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SEC Form D · by sector and metro

Energy and climate raises in Denver and Boulder

Every energy and climate company in Denver and Boulder that filed a new SEC Form D: the last 90 days first, then everything on record.

As of November 10, 2026, 25 energy and climate companies in Denver and Boulder have filed a new SEC Form D on record, reporting $741.07M sold. 1 filed in the last 90 days, against 0 in the 90 days before. The biggest raise on record here is Koloma, Inc., at $245.74M (SEC Form D, October 21, 2026).

Companies on record25
Total sold$741.07M
Last 90 days1
Median raise$3.20M

1 energy and climate companies in Denver and Boulder filed in the last 90 days, against 0 in the 90 days before. The biggest raise on record here is Koloma, Inc. at $245.74M.

Companies raising per week

2026-08-24 to 2026-08-30: 0 companies02026-08-31 to 2026-09-06: 0 companies02026-09-07 to 2026-09-13: 0 companies02026-09-14 to 2026-09-20: 0 companies02026-09-21 to 2026-09-27: 0 companies02026-09-28 to 2026-10-04: 0 companies02026-10-05 to 2026-10-11: 0 companies02026-10-12 to 2026-10-18: 0 companies02026-10-19 to 2026-10-25: 1 company12026-10-26 to 2026-11-01: 0 companies02026-11-02 to 2026-11-08: 0 companies02026-11-09 to 2026-11-15: 0 companies0

The last 90 days

BasedPeople named
Centennial Water Holdings, LLC first filing$55.41M2026-10-21Denver, CORyan O'Shaughnessy, Mike O'Shaughnessy +1

First-time filers, last 90 days

Centennial Water Holdings, LLC.

Everything on record

BasedPeople named
Koloma, Inc.$245.74M2024-02-09Denver, COPeter Johnson, Jeff Knupp +6
Tendril Holdings, LLC first filing$101.88M2024-04-26Boulder, COLuis D'Acosta, Michelle Anastasi +13
ION Clean Energy, Inc. first filing$70M2024-04-11Boulder, COAlfred Brown, Manjae Han +2
Ludvik Electric Co first filing$60M2025-10-31Lakewood, COGiles Richard
Centennial Water Holdings, LLC first filing$55.41M2026-10-21Denver, CORyan O'Shaughnessy, Mike O'Shaughnessy +1
Koloma, Inc.$52.38M2024-10-15Denver, COPeter Johnson, Jeff Knupp +6
Cicada Logistics LLC first filing$24.11M2024-03-13Golden, CONicholas D'Onofrio
NovoHydrogen Holdings LLC first filing$23.66M2023-09-25Centennial, COMatthew McMonagle
Tendril Holdings, LLC$15M2025-03-28Boulder, COLuis D'Acosta, Michelle Anastasi +12
Endolith Inc.$13.84M2025-11-12Westminster, COElizabeth Percak-Dennett, Guy Vidra +2
Odyssey Energy Solutions, Inc. first filing$12.36M2023-05-18Boulder, COEmily McAteer, Piyush Mathur +2
Odyssey Energy Solutions, Inc.$11.28M2024-12-31Boulder, COEmily McAteer, Piyush Mathur +2
COWBOY CLEAN FUELS, LLC$9.37M2024-05-20Greenwood Village, CORyan Waddington, Michael Urynowicz +1
Elephant Energy, Inc.$6.50M2025-07-18Boulder, CODavid Richardson, Joshua Lake +2
Endolith Inc. first filing$5.31M2024-04-05Westminster, COElizabeth Percak-Dennett, Mojtaba Karimi +2
COWBOY CLEAN FUELS, LLC$4.34M2025-10-15Greenwood Village, COPreston Anderson, Ryan Waddington +2
COWBOY CLEAN FUELS, LLC$3.70M2023-12-28Greenwood Village, CORyan Waddington, Michael Urynowicz +1
Elephant Energy, Inc. first filing$3.43M2024-04-11Boulder, CODavid Richardson, Joshua Lake +1
RenewWest, Inc. first filing$3.20M2022-11-14Denver, COJohn Cleland, R. Bradley Forth +3
STARFIRE ENERGY INC first filing$3.03M2024-01-11Denver, COJennifer Beach, Joseph Beach +5
Source Energy Co first filing$3M2023-05-25Longmont, COPhilip Keller, Bryan Mazor +1
Uppermost Company, LLC first filing$2.50M2025-04-07Denver, COChris de Diego
Elephant Energy, Inc. first filing$2.38M2024-04-11Boulder, CODavid Richardson, Joshua Lake +1
Green Steel Enviornmental, Inc. first filing$1.74M2025-10-14Boulder, COJonathan Teaford, Jonathan Jonis +1
Barrell Lithium, LLC first filing$1.32M2024-12-16Denver, COKirk Barrell
COWBOY CLEAN FUELS, LLC first filing$1.25M2022-11-14Greenwood Village, CORyan Waddington, Michael Urynowicz
COWBOY CLEAN FUELS, LLC$1.25M2023-01-03Greenwood Village, CORyan Waddington, Michael Urynowicz +1
Starlight Software Solutions, LLC first filing$1.11M2024-10-04Denver, COLuke Walker, Burton McGillivray +3
Copper Labs, Inc first filing$1.07M2023-05-30Boulder, CODan Forman, Jeff Mathews +3
PSG Operating Company, LLC first filing$550K2023-02-24Denver, COWindham Loopesko, Christian Clem +1
Intrepid Energy, LLC first filing$126K2023-11-27Westminster, COSteven Curtis
Fossil Creek Minerals LLC first filing$80K2025-11-20Denver, COAndrew Haney, Christopher Tincher
BREK Electronics Corp.$50K2024-12-23Broomfield, COSuryakala Majeti
BREK Electronics Corp. first filing$50K2024-05-10Broomfield, COSuryakala Majeti
GeoSolar Technologies, Inc.$40K2024-01-11Denver, COA. Douglass
GeoSolar Technologies, Inc. first filing$3K2023-01-27Denver, COA. Douglass
GeoSolar Technologies, Inc. first filing$1K2023-01-27Denver, COA. Douglass
GeoSolar Technologies, Inc.—2024-10-16Denver, COA. Douglass, Dar-Lon Chang +1
Syrcuit Energy Solutions, Inc. first filing—2024-05-15Denver, COCraig Rasmuson, Matthew Lauer +7
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Other sectors in Denver and Boulder

Energy and climate in other metros

How this list is built

Every company here filed a Form D with the SEC from this sector and metro. A Form D is the notice a company files when it sells shares or other securities without a public offering, so it catches seed rounds, small rounds and rounds that were never announced, alongside the large ones that make the news. Only new offerings by operating companies count: amendments, pooled investment funds, real estate vehicles and special purpose vehicles are left out, so each row is a company raising money for itself.

The amount shown is the total the filing reports as sold so far. Some filings report nothing sold yet; those rows show a dash and add nothing to the totals. "First filing" marks a company whose first Form D on record this is. Each company links to our page for the filing, or to the SEC's own copy, and the list can be copied as CSV for a spreadsheet.

Download this data (CSV)39 rows, with sources. Free with an account.

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Permanent URL: https://mentionfox.com/funding/energy-climate/denver-boulder
Last updated 2026-11-10
Energy and climate startups in Denver and Boulder: 25 raised. MentionFox, 2026-11-10. https://mentionfox.com/funding/energy-climate/denver-boulder