# Proov funding: rounds and investors > Proov has raised $14M across 3 rounds since 2017. Investors include National Science Foundation, Mangrove Capital Partners and Portfolia. Source: https://millionrounds.com/company/proov (Millionrounds; every figure on the page links to its filing or article) United States · [Funded startup](https://millionrounds.com/companies) # Who invested in *Proov* 3 rounds we have observed, with the 6 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 Funding summary Updated 26 Oct 2026 **$14M** raised across 3 rounds since 2017, from 3 sources **$14M** Series B **$250K** Grant - **Latest round:** Grant, $250K May 2024 - **Biggest round:** $14M Series B · Aug 2017 - **Investors:** 6 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. 2018 2019 2020 2021 2022 2023 2024 **$14M** Series B **?** Venture **$250K** Grant - **First round:** Series B, $14M - **Biggest round:** $14M - **Usual gap between rounds:** 5.5 years ## The rounds - **May 2024** Grant **$250K** *2 new* [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) [Portfolia](https://millionrounds.com/fund/portfolia) Source recorded - **Nov 2018** Venture **Amount undisclosed** *2 new* [Mangrove Capital Partners](https://millionrounds.com/fund/mangrove-capital-partners) OurCrowd Source recorded - **Aug 2017** Series B **$14M** *2 new* [Helios Capital](https://millionrounds.com/fund/helios-capital) Mangrove Capital Partners/ OurCrowd Cerca Reported by FinSMEs ## 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** 2017 **Venture** 2018 **Grant** 2024 [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) [Mangrove Capital Partners](https://millionrounds.com/fund/mangrove-capital-partners) [Portfolia](https://millionrounds.com/fund/portfolia) [Helios Capital](https://millionrounds.com/fund/helios-capital) Mangrove Capital Partners/ OurCrowd Cerca OurCrowd ## Everyone who backed them [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) Government **1** round [Mangrove Capital Partners](https://millionrounds.com/fund/mangrove-capital-partners) VC firm **1** round [Portfolia](https://millionrounds.com/fund/portfolia) VC firm **1** round [Helios Capital](https://millionrounds.com/fund/helios-capital) Family office **1** round Mangrove Capital Partners/ OurCrowd Cerca no record of our own yet **1** round OurCrowd 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=proov). ## Also claim to have backed them This firm lists Proov 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. [Next Act Fund](https://millionrounds.com/fund/next-act-fund-llc) Angel network Per its own site ## Quick answers about Proov ### Who invested in Proov? Proov's investors include National Science Foundation, Mangrove Capital Partners, Portfolia, Helios Capital and Mangrove Capital Partners/ OurCrowd Cerca, and 1 more on record. ### How much has Proov raised? Proov has raised $14M across 3 rounds since 2017. One round did not disclose an amount, so the total is a floor. ### When did Proov last raise? Proov's most recent round was a Grant of $250K in May 2024. ### What was Proov's biggest round? Proov's largest round on record is $14M (Series B), in Aug 2017. ### Who backed Proov first? Proov's first round on record, in Aug 2017, was backed by Helios Capital and Mangrove Capital Partners/ OurCrowd Cerca. ### What stage is Proov at? Proov's latest named round is a Grant, in May 2024. ### Where is Proov based? Proov is based in the United States. ## Companies like Proov 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)[**IMIO** $19M · Oct 2026](https://millionrounds.com/company/imio)[**Clinical Ink** $24M · Oct 2026](https://millionrounds.com/company/clinical-ink)[**Rejuvenate Bio** $13M · Oct 2026](https://millionrounds.com/company/rejuvenate-bio) ## 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