# Aeroseal funding: rounds and investors > Aeroseal has raised $87M across 2 rounds since 2023. Investors include Breakthrough Energy and Energy Impact Partners. Every round with its source. Source: https://millionrounds.com/company/aeroseal (Millionrounds; every figure on the page links to its filing or article) United States · [Series B startup](https://millionrounds.com/companies) # Who invested in *Aeroseal* 2 rounds we have observed, with the 2 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 Raised 7 months ago Funding summary Updated 26 Oct 2026 **$87M** raised across 2 rounds since 2023, from 2 sources **$67M** Series B **$20M** Series B - **Latest round:** Series B, $20M Apr 2026 - **Biggest round:** $67M Series B · Jul 2023 - **Investors:** 2 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 **$67M** Series B **$20M** Series B - **First round:** Series B, $67M - **Biggest round:** $67M - **Between rounds:** 2.8 years ## The rounds - **Apr 2026** Series B **$20M** *2 returning* [Breakthrough Energy](https://millionrounds.com/fund/breakthrough-energy) [Energy Impact Partners](https://millionrounds.com/fund/energy-impact-partners) Source recorded - **Jul 2023** Series B **$67M** *2 new* [Breakthrough Energy](https://millionrounds.com/fund/breakthrough-energy) [Energy Impact Partners](https://millionrounds.com/fund/energy-impact-partners) Source recorded ## 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 B** 2023 **Series B** 2026 [Breakthrough Energy](https://millionrounds.com/fund/breakthrough-energy) [Energy Impact Partners](https://millionrounds.com/fund/energy-impact-partners) ## Everyone who backed them [Breakthrough Energy](https://millionrounds.com/fund/breakthrough-energy) VC firm **2** rounds [Energy Impact Partners](https://millionrounds.com/fund/energy-impact-partners) VC firm **2** rounds Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=aeroseal). ## Also claim to have backed them These 2 firms list Aeroseal 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. [Climate Investment](https://millionrounds.com/fund/climate-investment-ci) VC firm Per its own site [Baruch Future Ventures](https://millionrounds.com/fund/baruch-future-ventures) VC firm Per its own site ## Quick answers about Aeroseal ### Who invested in Aeroseal? Aeroseal's investors include Breakthrough Energy and Energy Impact Partners. ### How much has Aeroseal raised? Aeroseal has raised $87M across 2 rounds since 2023. ### When did Aeroseal last raise? Aeroseal's most recent round was a Series B of $20M in Apr 2026. ### What was Aeroseal's biggest round? Aeroseal's largest round on record is $67M (Series B), in Jul 2023. ### Who backed Aeroseal first? Aeroseal's first round on record, in Jul 2023, was backed by Breakthrough Energy and Energy Impact Partners. ### What stage is Aeroseal at? Aeroseal's latest named round is a Series B, in Apr 2026. ### Where is Aeroseal based? Aeroseal is based in the United States. ## Companies like Aeroseal In the same sector, and raised in the last eighteen months. [**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)[**Peak Energy** $163M · Oct 2026](https://millionrounds.com/company/peak-energy)[**Renew** $207M · Oct 2026](https://millionrounds.com/company/renew)[**Optivolt** $37M · Oct 2026](https://millionrounds.com/company/optivolt) ## 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