# Base Power funding: rounds and investors > Base Power has raised $2.2B across 3 rounds since 2025. Investors include Addition, Valor Equity Partners and Andreessen Horowitz. Every round with its source. Source: https://millionrounds.com/company/base-power (Millionrounds; every figure on the page links to its filing or article) United States · [Series D startup](https://millionrounds.com/companies) # Who invested in *Base Power* 3 rounds we have observed, with the 21 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 Construction Energy Raised 3 months ago Valuation: $4.0B, Mar 2026 Follow Base Power and see its new rounds in your feed. [Start following](https://millionrounds.com/login?join=1&why=follow&next=%2Fcompany%2Fbase-power) Funding summary Updated 5 Nov 2026 **$2.2B** raised across 3 rounds since 2025, from 7 sources **$200M** Series B **$1.0B** Series C **$1.0B** Series D - **Latest round:** Series D, $1.0B Aug 2026 - **Led by:** Valor Equity Partners and Ribbit Capital and 2 more - **Investors:** 21 (6 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. 2026 **$200M** Series B **$1.0B** Series C **$1.0B** Series D - **First round:** Series B, $200M - **Biggest round:** $1.0B - **Usual gap between rounds:** 9 months ## The rounds - **Aug 2026** Series D **$1.0B** *6 new* *9 returning* [Valor Equity Partners](https://millionrounds.com/fund/valor-equity-partners) Lead [Ribbit Capital](https://millionrounds.com/fund/ribbit-capital) Lead [Addition](https://millionrounds.com/fund/addition) Lead [JPMorgan Chase's Strategic Investment Group](https://millionrounds.com/fund/jpmorgan-chase-s-strategic-investment-group) Lead [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) [Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) [Coatue](https://millionrounds.com/fund/coatue-management) [Energy Impact Partners](https://millionrounds.com/fund/energy-impact-partners) [Thrive Capital](https://millionrounds.com/fund/thrive-capital) [Altimeter](https://millionrounds.com/fund/altimeter-capital) [CapitalG](https://millionrounds.com/fund/capitalg) [D1 Capital Partners](https://millionrounds.com/fund/d1-capital-partners) [Sands Capital Management](https://millionrounds.com/fund/sands-capital) [Trust Ventures](https://millionrounds.com/fund/trust-ventures) [Layer Global](https://millionrounds.com/fund/layer-global) Reported by TechCrunch and 1 other - **Oct 2025** Series C **$1.0B** *7 new* *5 returning* [Addition](https://millionrounds.com/fund/addition) Lead [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) [Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) [Valor Equity Partners](https://millionrounds.com/fund/valor-equity-partners) [Thrive Capital](https://millionrounds.com/fund/thrive-capital-2) [Ribbit Capital](https://millionrounds.com/fund/ribbit-capital) [Bond](https://millionrounds.com/fund/bond) [Lowercarbon Capital](https://millionrounds.com/fund/lowercarbon-capital) [Elad Gil](https://millionrounds.com/fund/elad-gil) [CapitalG](https://millionrounds.com/fund/capitalg) [Spark](https://millionrounds.com/fund/spark-3) [Trust Ventures](https://millionrounds.com/fund/trust-ventures) Reported by TechCrunch and 1 other - **Apr 2025** Series B **$200M** *8 new* [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) Lead [Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) Lead [Valor Equity Partners](https://millionrounds.com/fund/valor-equity-partners) Lead [Addition](https://millionrounds.com/fund/addition) Lead [Thrive Capital](https://millionrounds.com/fund/thrive-capital) [Altimeter](https://millionrounds.com/fund/altimeter-capital) [Trust Ventures](https://millionrounds.com/fund/trust-ventures) [Terrain](https://millionrounds.com/fund/terrain) Reported by Crunchbase News and 2 others ## 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** 2025 **Series C** 2025 **Series D** 2026 [Addition](https://millionrounds.com/fund/addition) L L L [Valor Equity Partners](https://millionrounds.com/fund/valor-equity-partners) L L [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) L [Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) L [Trust Ventures](https://millionrounds.com/fund/trust-ventures) [Ribbit Capital](https://millionrounds.com/fund/ribbit-capital) L [Thrive Capital](https://millionrounds.com/fund/thrive-capital) [Altimeter](https://millionrounds.com/fund/altimeter-capital) [CapitalG](https://millionrounds.com/fund/capitalg) [JPMorgan Chase's Strategic Investment Group](https://millionrounds.com/fund/jpmorgan-chase-s-strategic-investment-group) L ## Everyone who backed them [Addition](https://millionrounds.com/fund/addition) Private equity **3** rounds, led 3 [Valor Equity Partners](https://millionrounds.com/fund/valor-equity-partners) VC firm **3** rounds, led 2 [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) VC firm **3** rounds, led 1 [Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) VC firm **3** rounds, led 1 [Trust Ventures](https://millionrounds.com/fund/trust-ventures) VC firm **3** rounds [Ribbit Capital](https://millionrounds.com/fund/ribbit-capital) VC firm **2** rounds, led 1 [Thrive Capital](https://millionrounds.com/fund/thrive-capital) Accelerator **2** rounds [Altimeter](https://millionrounds.com/fund/altimeter-capital) VC firm **2** rounds [CapitalG](https://millionrounds.com/fund/capitalg) Corporate VC **2** rounds [JPMorgan Chase's Strategic Investment Group](https://millionrounds.com/fund/jpmorgan-chase-s-strategic-investment-group) Growth equity **1** round, led 1 [Coatue](https://millionrounds.com/fund/coatue-management) VC firm **1** round [Thrive Capital](https://millionrounds.com/fund/thrive-capital-2) Family office **1** round [Bond](https://millionrounds.com/fund/bond) Growth equity **1** round [Lowercarbon Capital](https://millionrounds.com/fund/lowercarbon-capital) VC firm **1** round [Energy Impact Partners](https://millionrounds.com/fund/energy-impact-partners) VC firm **1** round [Elad Gil](https://millionrounds.com/fund/elad-gil) VC firm **1** round [Spark](https://millionrounds.com/fund/spark-3) Growth equity **1** round [D1 Capital Partners](https://millionrounds.com/fund/d1-capital-partners) Hedge fund **1** round [Sands Capital Management](https://millionrounds.com/fund/sands-capital) Growth equity **1** round [Layer Global](https://millionrounds.com/fund/layer-global) VC firm **1** round [Terrain](https://millionrounds.com/fund/terrain) VC firm **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=base-power). ## Also claim to have backed them These 8 firms list Base Power 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. [FJ Labs](https://millionrounds.com/fund/fj-labs) VC firm Per its own site [Avenir](https://millionrounds.com/fund/avenir) VC firm Per its own site [Glade Brook Capital Partners](https://millionrounds.com/fund/glade-brook-capital) VC firm Per its own site [Positive Sum](https://millionrounds.com/fund/positive-sum) Private equity Per its own site [Jackson Moses](https://millionrounds.com/fund/jackson-moses) Angel Per its own site [Partners Resolute](https://millionrounds.com/fund/partners-resolute) VC firm Per its own site [Solari Capital](https://millionrounds.com/fund/solari-capital) VC firm Per its own site [Standish Spring Investments](https://millionrounds.com/fund/standish-spring-investments) VC firm Per its own site ## Quick answers about Base Power ### Who invested in Base Power? Base Power's investors include Addition, Valor Equity Partners, Andreessen Horowitz, Lightspeed Venture Partners and Trust Ventures, and 16 more on record. Valor Equity Partners led its latest round. ### How much has Base Power raised? Base Power has raised $2.2B across 3 rounds since 2025. ### When did Base Power last raise? Base Power's most recent round was a Series D of $1.0B in Aug 2026, led by Valor Equity Partners. ### What was Base Power's biggest round? Its most recent round, $1.0B in Aug 2026, is also its largest on record. ### Who backed Base Power first? Base Power's first round on record, in Apr 2025, was backed by Andreessen Horowitz, Lightspeed Venture Partners and Valor Equity Partners and 5 others. ### What stage is Base Power at? Base Power's latest named round is a Series D, in Aug 2026. ### Where is Base Power based? Base Power is based in the United States. ### Who led Base Power's rounds? Andreessen Horowitz led the Series B in 2025; Addition led the Series C in 2025; Valor Equity Partners led the Series D in 2026. ## Companies like Base Power In the same sector, and raised in the last eighteen months. [**Fal** $1.4B · Nov 2026](https://millionrounds.com/company/fal)[**Trajectory** $101M · Nov 2026](https://millionrounds.com/company/trajectory)[**Northwood Space** $505M · Nov 2026](https://millionrounds.com/company/northwood-space)[**OpenAI** $230B · Oct 2026](https://millionrounds.com/company/openai)[**Baseten** $4.0B · Oct 2026](https://millionrounds.com/company/baseten)[**Group14 Technologies** $632M · Oct 2026](https://millionrounds.com/company/group14-technologies) ## 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