# BillionToOne funding: rounds and investors > BillionToOne has raised $280M across 4 rounds since 2019. Investors include Hummingbird Ventures, Neotribe Ventures and Y Combinator. Source: https://millionrounds.com/company/billiontoone (Millionrounds; every figure on the page links to its filing or article) United States · [Funded startup](https://millionrounds.com/companies) # Who invested in *BillionToOne* 4 rounds we have observed, with the 16 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 Medical Devices Valuation: $1.0B, Oct 2024 Y Combinator: S17 Funding summary Updated 26 Oct 2026 **$280M** raised across 4 rounds since 2019, from 4 sources **$15M** Series A **$125M** Series C **$140M** Debt - **Latest round:** Debt, $140M Sept 2024 - **Led by:** Oberland Capital - **Investors:** 16 (4 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. 2019 2020 2021 2022 2023 2024 **$15M** Series A **$125M** Series C **?** Venture **$140M** Debt - **First round:** Series A, $15M - **Biggest round:** $140M - **Usual gap between rounds:** 2.2 years ## The rounds - **Sept 2024** Debt **$140M** *1 new* [Oberland Capital](https://millionrounds.com/fund/oberland-capital) Lead Reported by Firms' own news pages - **Jun 2024** Venture **Amount undisclosed** *1 new* *4 returning* [Y Combinator](https://millionrounds.com/fund/y-combinator) [500 Global](https://millionrounds.com/fund/500-startups) [Norwest Venture Partners](https://millionrounds.com/fund/norwest) [HOF Capital](https://millionrounds.com/fund/hof-capital) [Hummingbird Ventures](https://millionrounds.com/fund/hummingbird-ventures) Source recorded - **Mar 2022** Series C **$125M** *7 new* *3 returning* [Adams Street Partners](https://millionrounds.com/fund/adams-street-partners) Lead [Hummingbird Ventures](https://millionrounds.com/fund/hummingbird-ventures) Lead [Norwest Venture Partners](https://millionrounds.com/fund/norwest) [Baillie Gifford](https://millionrounds.com/fund/baillie-gifford) [Neotribe Ventures](https://millionrounds.com/fund/neotribe-ventures) [Civilization Ventures](https://millionrounds.com/fund/civilization-ventures) [Time BioVentures](https://millionrounds.com/fund/time-bioventures) [Libertus Capital](https://millionrounds.com/fund/libertus-capital) [Pacific 8 Ventures](https://millionrounds.com/fund/pacific-8-ventures) [Fifty Years VC](https://millionrounds.com/fund/fifty-years-vc) Reported by Firms' own news pages - **Mar 2019** Series A **$15M** *7 new* [Hummingbird Ventures](https://millionrounds.com/fund/hummingbird-ventures) Lead [Neotribe Ventures](https://millionrounds.com/fund/neotribe-ventures) Lead [Y Combinator](https://millionrounds.com/fund/y-combinator) [HOF Capital](https://millionrounds.com/fund/hof-capital) [Fifty Years](https://millionrounds.com/fund/fifty-years-industries-llc) [Civilization Ventures](https://millionrounds.com/fund/civilization-ventures) 500 Startups Istanbul Reported by Prnewswire ## Founders and team From BillionToOne's own website: 20 on the team. - **Jean Hayden** VP of Business Operations, Chief of Staff CEO - **John Lister** Chief Administrative Officer - **Carrie McGehee** VP of Market Access - **Jaclyn Eng** VP of Marketing - **Lynn Fenicchia** VP of Sales - **Brandon Resendez** Area Director, Prenatal - West - **Brittany Williams** Area Director, Prenatal - East - **Clara Ng-Cummings** Senior Principal Communication Strategist - **Elliott Margulies** Director of Bioinformatics - **Jonathan Stumpf** Director of Market Access - **Julia Wynn** Director of Clinical Research - **Karel Hurka** Senior Director of Supply Chain - **Kitty Li** Director of Lab Operations - **Michele Phelps** Senior Director of Financial Planning & Analysis - **Raisa Choudhuri** Director of Commercial Strategy & Operations - **Rob Thompson** Director of Inside Sales - **Ronny Elor** Director of Quality Assurance - **Shara Venezia-Walerstein** Associate General Counsel And 2 more on the team. ## 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 A** 2019 **Series C** 2022 **Venture** 2024 **Debt** 2024 [Hummingbird Ventures](https://millionrounds.com/fund/hummingbird-ventures) L L [Neotribe Ventures](https://millionrounds.com/fund/neotribe-ventures) L [Y Combinator](https://millionrounds.com/fund/y-combinator) [Norwest Venture Partners](https://millionrounds.com/fund/norwest) [HOF Capital](https://millionrounds.com/fund/hof-capital) [Civilization Ventures](https://millionrounds.com/fund/civilization-ventures) [Adams Street Partners](https://millionrounds.com/fund/adams-street-partners) L [Oberland Capital](https://millionrounds.com/fund/oberland-capital) L [500 Global](https://millionrounds.com/fund/500-startups) [Fifty Years](https://millionrounds.com/fund/fifty-years-industries-llc) ## Everyone who backed them [Hummingbird Ventures](https://millionrounds.com/fund/hummingbird-ventures) VC firm **3** rounds, led 2 [Neotribe Ventures](https://millionrounds.com/fund/neotribe-ventures) VC firm **2** rounds, led 1 [Y Combinator](https://millionrounds.com/fund/y-combinator) Accelerator **2** rounds [Norwest Venture Partners](https://millionrounds.com/fund/norwest) VC firm **2** rounds [HOF Capital](https://millionrounds.com/fund/hof-capital) VC firm **2** rounds [Civilization Ventures](https://millionrounds.com/fund/civilization-ventures) VC firm **2** rounds [Adams Street Partners](https://millionrounds.com/fund/adams-street-partners) VC firm **1** round, led 1 [Oberland Capital](https://millionrounds.com/fund/oberland-capital) Private credit **1** round, led 1 [500 Global](https://millionrounds.com/fund/500-startups) Angel **1** round [Fifty Years](https://millionrounds.com/fund/fifty-years-industries-llc) VC firm **1** round [Baillie Gifford](https://millionrounds.com/fund/baillie-gifford) Asset manager **1** round [Time BioVentures](https://millionrounds.com/fund/time-bioventures) VC firm **1** round [Libertus Capital](https://millionrounds.com/fund/libertus-capital) VC firm **1** round [Pacific 8 Ventures](https://millionrounds.com/fund/pacific-8-ventures) VC firm **1** round [Fifty Years VC](https://millionrounds.com/fund/fifty-years-vc) Growth equity **1** round 500 Startups Istanbul 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=billiontoone). ## Also claim to have backed them These 12 firms list BillionToOne 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. [UpHonest Capital](https://millionrounds.com/fund/uphonest-capital) VC firm Per its own site [Toba Capital](https://millionrounds.com/fund/toba-capital) VC firm Per its own site [Asymmetry Ventures](https://millionrounds.com/fund/asymmetry-ventures) VC firm Per its own site [Big Bang Ventures](https://millionrounds.com/fund/big-bang-ventures) VC firm Per its own site [Start Capital](https://millionrounds.com/fund/start-capital) Angel network Per its own site [Lombardstreet Ventures](https://millionrounds.com/fund/lombardstreet-ventures) VC firm Per its own site [Audrey Capital](https://millionrounds.com/fund/audrey-capital) VC firm Per its own site [Fark Labs](https://millionrounds.com/fund/fark-labs) Accelerator Per its own site [Inventus Law](https://millionrounds.com/fund/inventus-law) VC firm Per its own site [NEXYR](https://millionrounds.com/fund/nexyr) VC firm Per its own site [Samsarik Capital](https://millionrounds.com/fund/samsarik-capital) VC firm Per its own site [abenteuer.ventures](https://millionrounds.com/fund/abenteuer-ventures) Angel network Per its own site ## Quick answers about BillionToOne ### Who invested in BillionToOne? BillionToOne's investors include Hummingbird Ventures, Neotribe Ventures, Y Combinator, Norwest Venture Partners and HOF Capital, and 11 more on record. Oberland Capital led its latest round. ### How much has BillionToOne raised? BillionToOne has raised $280M across 4 rounds since 2019. One round did not disclose an amount, so the total is a floor. ### When did BillionToOne last raise? BillionToOne's most recent round was a Debt of $140M in Sept 2024, led by Oberland Capital. ### What was BillionToOne's biggest round? Its most recent round, $140M in Sept 2024, is also its largest on record. ### Who backed BillionToOne first? BillionToOne's first round on record, in Mar 2019, was backed by Hummingbird Ventures, Neotribe Ventures and Y Combinator and 4 others. ### What stage is BillionToOne at? BillionToOne's latest named round is a Debt, in Sept 2024. ### Where is BillionToOne based? BillionToOne is based in the United States. ### Who led BillionToOne's rounds? Hummingbird Ventures led the Series A in 2019; Adams Street Partners led the Series C in 2022; Oberland Capital led the Debt in 2024. ## Companies like BillionToOne In the same sector, and raised in the last eighteen months. [**Star Therapeutics** $325M · Oct 2026](https://millionrounds.com/company/star-therapeutics)[**Prolific Machines** $105M · Oct 2026](https://millionrounds.com/company/prolific-machines)[**Promaxo** $106M · Oct 2026](https://millionrounds.com/company/promaxo)[**AI** $18M · Oct 2026](https://millionrounds.com/company/ai)[**IMIO** $19M · Oct 2026](https://millionrounds.com/company/imio)[**Baba** $40M · Oct 2026](https://millionrounds.com/company/baba) ## 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