# LumiThera funding: rounds and investors > LumiThera has raised $8.2M across 3 rounds since 2014. Investors include Keiretsu Forum, Keiretsu Capital and WaterStone Capital/ RPR. Source: https://millionrounds.com/company/lumithera (Millionrounds; every figure on the page links to its filing or article) United States · [Venture startup](https://millionrounds.com/companies) # Who invested in *LumiThera* 3 rounds we have observed, with the 3 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. Biotech Healthcare Funding summary Updated 26 Oct 2026 **$8.2M** raised across 3 rounds since 2014, from 3 sources **$325K** Venture **$5.5M** Series B **$2.4M** Venture - **Latest round:** Venture, $2.4M May 2024 - **Biggest round:** $5.5M Series B · Oct 2017 - **Investors:** 3 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. 2014 2016 2018 2020 2022 2024 **$325K** Venture **$5.5M** Series B **$2.4M** Venture - **First round:** Venture, $325K - **Biggest round:** $5.5M - **Usual gap between rounds:** 6.5 years ## The rounds - **May 2024** Venture **$2.4M** *2 new* [Keiretsu Forum](https://millionrounds.com/fund/keiretsu-forum) [Keiretsu Capital](https://millionrounds.com/fund/keiretsu-capital) Source recorded SEC filing: $2.4M sold, first sale May 2024 - **Oct 2017** Series B **$5.5M** *1 new* WaterStone Capital/ RPR Reported by FinSMEs SEC filing: $5.0M sold, first sale Nov 2016 - **Aug 2014** Venture **$325K** No investor was named in the report. From a historical funding record SEC filing: $325K sold, first sale Aug 2014 ## 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** 2014 **Series B** 2017 **Venture** 2024 [Keiretsu Forum](https://millionrounds.com/fund/keiretsu-forum) [Keiretsu Capital](https://millionrounds.com/fund/keiretsu-capital) WaterStone Capital/ RPR ## Everyone who backed them [Keiretsu Forum](https://millionrounds.com/fund/keiretsu-forum) Angel network **1** round [Keiretsu Capital](https://millionrounds.com/fund/keiretsu-capital) VC firm **1** round WaterStone Capital/ RPR no record of our own yet **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=lumithera). ## Also claim to have backed them This firm lists LumiThera as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above. [Life Sciences Greenhouse Investments](https://millionrounds.com/fund/life-sciences-greenhouse-investments) Government Per its own site ## Quick answers about LumiThera ### Who invested in LumiThera? LumiThera's investors include Keiretsu Forum, Keiretsu Capital and WaterStone Capital/ RPR. ### How much has LumiThera raised? LumiThera has raised $8.2M across 3 rounds since 2014. ### When did LumiThera last raise? LumiThera's most recent round was a Venture of $2.4M in May 2024. ### What was LumiThera's biggest round? LumiThera's largest round on record is $5.5M (Series B), in Oct 2017. ### Who backed LumiThera first? LumiThera's first round on record, in Oct 2017, was backed by WaterStone Capital/ RPR. ### What stage is LumiThera at? LumiThera's latest named round is a Venture, in May 2024. ### Where is LumiThera based? LumiThera is based in the United States. ## Companies like LumiThera In the same sector, and raised in the last eighteen months. [**Star Therapeutics** $325M · Oct 2026](https://millionrounds.com/company/star-therapeutics)[**Promaxo** $106M · Oct 2026](https://millionrounds.com/company/promaxo)[**Prolific Machines** $105M · Oct 2026](https://millionrounds.com/company/prolific-machines)[**AI** $18M · Oct 2026](https://millionrounds.com/company/ai)[**Baba** $40M · Oct 2026](https://millionrounds.com/company/baba)[**IMIO** $19M · Oct 2026](https://millionrounds.com/company/imio) ## 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