# Quaise Energy funding: rounds and investors > Quaise Energy has raised $180M across 3 rounds since 2023. Investors include Safar Partners, Collaborative Fund and Prelude Ventures. Source: https://millionrounds.com/company/quaise-energy (Millionrounds; every figure on the page links to its filing or article) United States · [Funded startup](https://millionrounds.com/companies) # Who invested in *Quaise Energy* 3 rounds we have observed, with the 7 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it. Cleantech Energy Raised 2 months ago Follow Quaise Energy and see its new rounds in your feed. [Start following](https://millionrounds.com/login?join=1&why=follow&next=%2Fcompany%2Fquaise-energy) Funding summary Updated 5 Nov 2026 **$180M** raised across 3 rounds since 2023, from 3 sources **$21M** Series A **$134M** Series B **$25M** Grant - **Latest round:** Grant, $25M Sept 2026 - **Biggest round:** $134M Series B · Jul 2026 - **Investors:** 7 (1 led) See who backed them ## The funding story Each circle is a round, placed by date and sized by amount. The line above is the running total. 2024 2025 2026 **$21M** Series A **$134M** Series B **$25M** Grant - **First round:** Series A, $21M - **Biggest round:** $134M - **Usual gap between rounds:** 2.6 years ## The rounds - **Sept 2026** Grant **$25M** *1 new* *2 returning* [US Department of Energy](https://millionrounds.com/fund/u-s-department-of-energy) [Collaborative Fund](https://millionrounds.com/fund/collaborative-fund) [Safar Partners](https://millionrounds.com/fund/safar-partners) Source recorded SEC filing: $179M sold - **Jul 2026** Series B **$134M** *3 new* *1 returning* [Prelude Ventures](https://millionrounds.com/fund/prelude-ventures) Lead [Safar Partners](https://millionrounds.com/fund/safar-partners) [JERA](https://millionrounds.com/fund/jera) [Idemitsu](https://millionrounds.com/fund/idemitsu) Reported by Ventureburn SEC filing: $134M sold - **Dec 2023** Series A **$21M** *3 new* [Collaborative Fund](https://millionrounds.com/fund/collaborative-fund) [Safar Partners](https://millionrounds.com/fund/safar-partners) [Mitsubishi Corporation](https://millionrounds.com/fund/mitsubishi-corporation) Source recorded SEC filing: $13M sold, first sale Nov 2023 ## Funding filed with regulators Quaise Energy filed 4 raises, $378M in all. Filings say how much was sold and to how many investors; they never name the investors. - Sept 2026 **$179M** 49 investors of $180M offered SEC Form D - Jul 2026 **$134M** 49 investors of $144M offered SEC Form D - Nov 2023 **$13M** 9 investors equity, options, securities on exercise of $25M offered SEC Form D - Jan 2022 **$52M** 26 investors equity SEC Form D ## Founders and team From Quaise Energy's own website: 45 on the team. - **Diane Hughes** Vice President, Marketing & Communications - **Franck Monmont** Vice President, Research - **Geoffrey Garrison** Vice President, Operations - **Henry Phan** Vice President, Engineering - **Kathryn Hite** Chief Operating Officer - **Kevin Bonebrake** Chief Financial Officer - **Matthew Houde** Chief of Staff - **Andrew Hunt** Engineer - **Anthonie Tran** Engineer - **Arif Khan** Engineer - **Arturo Quezada** Engineer - **Atirath Dhara** Experimental Research Associate - **Brian Christiansen** Engineer - **Carlos Ortiz** Engineer - **Casey Rodgers** Engineer - **Charles Stewart** Designer - **Chris Hall** Designer - **Clay Bryant** Designer And 27 more on the team. ## Who was in which round The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led. **Series A** 2023 **Series B** 2026 **Grant** 2026 [Safar Partners](https://millionrounds.com/fund/safar-partners) [Collaborative Fund](https://millionrounds.com/fund/collaborative-fund) [Prelude Ventures](https://millionrounds.com/fund/prelude-ventures) L [US Department of Energy](https://millionrounds.com/fund/u-s-department-of-energy) [Mitsubishi Corporation](https://millionrounds.com/fund/mitsubishi-corporation) [JERA](https://millionrounds.com/fund/jera) [Idemitsu](https://millionrounds.com/fund/idemitsu) ## Everyone who backed them [Safar Partners](https://millionrounds.com/fund/safar-partners) VC firm **3** rounds [Collaborative Fund](https://millionrounds.com/fund/collaborative-fund) VC firm **2** rounds [Prelude Ventures](https://millionrounds.com/fund/prelude-ventures) VC firm **1** round, led 1 [US Department of Energy](https://millionrounds.com/fund/u-s-department-of-energy) Government **1** round [Mitsubishi Corporation](https://millionrounds.com/fund/mitsubishi-corporation) VC firm **1** round [JERA](https://millionrounds.com/fund/jera) Corporate VC **1** round [Idemitsu](https://millionrounds.com/fund/idemitsu) Growth equity **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=quaise-energy). ## Also claim to have backed them These 2 firms list Quaise Energy as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above. [Fine Structure Ventures](https://millionrounds.com/fund/fine-structure-ventures) VC firm Per its own site [NEXYR](https://millionrounds.com/fund/nexyr) VC firm Per its own site ## Quick answers about Quaise Energy ### Who invested in Quaise Energy? Quaise Energy's investors include Safar Partners, Collaborative Fund, Prelude Ventures, US Department of Energy and Mitsubishi Corporation, and 2 more on record. ### How much has Quaise Energy raised? Quaise Energy has raised $180M across 3 rounds since 2023. ### When did Quaise Energy last raise? Quaise Energy's most recent round was a Grant of $25M in Sept 2026. ### What was Quaise Energy's biggest round? Quaise Energy's largest round on record is $134M (Series B), in Jul 2026, led by Prelude Ventures. ### Who backed Quaise Energy first? Quaise Energy's first round on record, in Dec 2023, was backed by Collaborative Fund, Safar Partners and Mitsubishi Corporation. ### What stage is Quaise Energy at? Quaise Energy's latest named round is a Grant, in Sept 2026. ### Where is Quaise Energy based? Quaise Energy is based in the United States. ### Who led Quaise Energy's rounds? Prelude Ventures led the Series B in 2026. ## Companies like Quaise Energy In the same sector, and raised in the last eighteen months. [**Group14 Technologies** $632M · Oct 2026](https://millionrounds.com/company/group14-technologies)[**Mammoth Energy Services** $58M · Oct 2026](https://millionrounds.com/company/mammoth-energy-services)[**Emvolon** $22M · Oct 2026](https://millionrounds.com/company/emvolon)[**Amogy** $125M · Oct 2026](https://millionrounds.com/company/amogy)[**LanzaJet** $67M · Oct 2026](https://millionrounds.com/company/lanzajet)[**Pivot Energy** $500M · Oct 2026](https://millionrounds.com/company/pivot-energy) ## Find investors like these Search every investor by what they have actually funded, then narrow to your stage and market. Free. Open the investor searchOr these rounds in the app