# Twelve funding: rounds and investors > Twelve has raised $117M across 8 rounds since 2011. Investors include Y Combinator, Greycroft and TPG. Every round with its source. Source: https://millionrounds.com/company/twelve (Millionrounds; every figure on the page links to its filing or article) United States · [Funded startup](https://millionrounds.com/companies) # Who invested in *Twelve* 8 rounds we have observed, with the 10 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. Climate Tech Raised 2 months ago Valuation: $1.0B, Oct 2024 Funding summary Updated 26 Oct 2026 **$117M** raised across 8 rounds since 2011, from 8 sources **$4.0M** Venture **$1.5M** Debt **$15M** Venture **$7.0M** Debt **$9.1M** Venture **$35M** Venture **$45M** Debt - **Latest round:** Debt, $45M Sept 2026 - **Step-up i:** 1.3× - **Investors:** 10 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. 2011 2013 2015 2017 2019 2021 2023 2025 **$4.0M** Venture **$1.5M** Debt **$7.0M** Debt **$9.1M** Venture **?** Venture **$45M** Debt - **First round:** Venture, $4.0M - **Biggest round:** $45M - **Usual gap between rounds:** 11 months ## The rounds - **Sept 2026** Debt **$45M** *1 new* *4 returning* [Y Combinator](https://millionrounds.com/fund/y-combinator) [Greycroft](https://millionrounds.com/fund/greycroft) [DCVC](https://millionrounds.com/fund/data-collective) [TPG](https://millionrounds.com/fund/tpg) [Fifth Wall](https://millionrounds.com/fund/fifth-wall) Source recorded - **May 2025** Venture **Amount undisclosed** *6 new* [Y Combinator](https://millionrounds.com/fund/y-combinator) [Techstars](https://millionrounds.com/fund/techstars) [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) [Greycroft](https://millionrounds.com/fund/greycroft) [TPG](https://millionrounds.com/fund/tpg) [Fifth Wall](https://millionrounds.com/fund/fifth-wall) Source recorded - **Apr 2015** Venture **$35M** No investor was named in the report. From a historical funding record SEC filing: $35M sold, first sale Apr 2015 - **Jun 2014** Venture **$9.1M** No investor was named in the report. From a historical funding record SEC filing: $9.1M sold, first sale May 2014 - **Apr 2014** Debt **$7.0M** No investor was named in the report. From a historical funding record SEC filing: $7.0M sold, first sale Mar 2014 - **Jun 2012** Venture **$15M** *3 new* [Versant Ventures](https://millionrounds.com/fund/versant-ventures) [Morgenthaler Ventures](https://millionrounds.com/fund/morgenthaler) [Domain Associates](https://millionrounds.com/fund/domain-associates) Reported by sec.gov - **Jan 2012** Debt **$1.5M** No investor was named in the report. Reported by sec.gov - **Mar 2011** Venture **$4.0M** No investor was named in the report. Reported by sec.gov ## 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. **Venture** 2011 **Debt** 2012 **Venture** 2012 **Debt** 2014 **Venture** 2014 **Venture** 2015 **Venture** 2025 **Debt** 2026 [Y Combinator](https://millionrounds.com/fund/y-combinator) [Greycroft](https://millionrounds.com/fund/greycroft) [TPG](https://millionrounds.com/fund/tpg) [Fifth Wall](https://millionrounds.com/fund/fifth-wall) [Techstars](https://millionrounds.com/fund/techstars) [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) [DCVC](https://millionrounds.com/fund/data-collective) [Versant Ventures](https://millionrounds.com/fund/versant-ventures) [Morgenthaler Ventures](https://millionrounds.com/fund/morgenthaler) [Domain Associates](https://millionrounds.com/fund/domain-associates) ## The exit Exit Buyer Price When Acquired [Medtronic](https://millionrounds.com/fund/medtronic) $458M Aug 2015 From historical deal records. Wrong? [Tell us](https://millionrounds.com/corrections?slug=twelve). ## Everyone who backed them [Y Combinator](https://millionrounds.com/fund/y-combinator) Accelerator **2** rounds [Greycroft](https://millionrounds.com/fund/greycroft) VC firm **2** rounds [TPG](https://millionrounds.com/fund/tpg) Private equity **2** rounds [Fifth Wall](https://millionrounds.com/fund/fifth-wall) VC firm **2** rounds [Techstars](https://millionrounds.com/fund/techstars) VC firm **1** round [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) Government **1** round [DCVC](https://millionrounds.com/fund/data-collective) VC firm **1** round [Versant Ventures](https://millionrounds.com/fund/versant-ventures) VC firm **1** round [Morgenthaler Ventures](https://millionrounds.com/fund/morgenthaler) VC firm **1** round [Domain Associates](https://millionrounds.com/fund/domain-associates) VC firm **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=twelve). ## Also claim to have backed them These 21 firms list Twelve 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. [Global Brain Corporation](https://millionrounds.com/fund/global-brain-corporation) VC firm Per its own site [Unruly Capital](https://millionrounds.com/fund/unruly-capital) VC firm Per its own site [Dolby Family Ventures](https://millionrounds.com/fund/dolby-family-ventures) VC firm Per its own site [TGM ventures](https://millionrounds.com/fund/tgm) Angel network Per its own site [Breakout Ventures](https://millionrounds.com/fund/breakout-ventures) VC firm Per its own site [MOL Switch LLC](https://millionrounds.com/fund/mol-switch-llc) Corporate VC Per its own site [Page One Ventures](https://millionrounds.com/fund/page-one-ventures) VC firm Per its own site [Impact Science Ventures](https://millionrounds.com/fund/impact-science-ventures) VC firm Per its own site [Pulse Fund](https://millionrounds.com/fund/pulse-fund) VC firm Per its own site [United Airlines Ventures](https://millionrounds.com/fund/united-airlines-ventures-2) Corporate VC Per its own site [MTM Venture Partners](https://millionrounds.com/fund/mtm-venture-partners) VC firm Per its own site [Parcel B](https://millionrounds.com/fund/parcel-b) Accelerator Per its own site [Seed Smart](https://millionrounds.com/fund/seed-smart) Angel network Per its own site [Startup Weekend](https://millionrounds.com/fund/startup-weekend) VC firm Per its own site [TGVP](https://millionrounds.com/fund/tgvp) VC firm Per its own site [TechStars Energy](https://millionrounds.com/fund/techstars-energy) Accelerator Per its own site [Techstars Alabama Power EnergyTech Accelerator](https://millionrounds.com/fund/techstars-alabama-power-energytech-accelerator) Accelerator Per its own site [Techstars Berlin](https://millionrounds.com/fund/techstars-berlin) Accelerator Per its own site [Techstars Music Accelerator](https://millionrounds.com/fund/techstars-music-accelerator) Accelerator Per its own site [Techstars Toronto Accelerator](https://millionrounds.com/fund/techstars-toronto-accelerator) Accelerator Per its own site [The Riyadh Techstars Accelerator](https://millionrounds.com/fund/techstars-riyadh-accelerator) Accelerator Per its own site ## Quick answers about Twelve ### Who invested in Twelve? Twelve's investors include Y Combinator, Greycroft, TPG, Fifth Wall and Techstars, and 5 more on record. ### How much has Twelve raised? Twelve has raised $117M across 8 rounds since 2011. One round did not disclose an amount, so the total is a floor. ### When did Twelve last raise? Twelve's most recent round was a Debt of $45M in Sept 2026. ### What was Twelve's biggest round? Its most recent round, $45M in Sept 2026, is also its largest on record. ### Who backed Twelve first? Twelve's first round on record, in Jun 2012, was backed by Versant Ventures, Morgenthaler Ventures and Domain Associates. ### What stage is Twelve at? Twelve's latest named round is a Debt, in Sept 2026. ### Where is Twelve based? Twelve is based in the United States. ## Companies like Twelve 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)[**ZwitterCo** $58M · Oct 2026](https://millionrounds.com/company/zwitterco)[**Pennsylvania American Water** $43M · Oct 2026](https://millionrounds.com/company/pennsylvania-american-water)[**Kodama** $7.0M · Oct 2026](https://millionrounds.com/company/kodama)[**Stand** $105M · Oct 2026](https://millionrounds.com/company/stand) ## 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