# Nabla Bio funding: rounds and investors > Nabla Bio has raised $37M across 2 rounds since 2021. Investors include Y Combinator, National Science Foundation and Khosla Ventures. Source: https://millionrounds.com/company/nabla-bio (Millionrounds; every figure on the page links to its filing or article) United States · [Series A startup](https://millionrounds.com/companies) # Who invested in *Nabla Bio* 2 rounds we have observed, with the 7 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 Pharma Y Combinator: S20 Funding summary Updated 26 Oct 2026 **$37M** raised across 2 rounds since 2021, from 2 sources **$11M** Seed **$26M** Series A - **Latest round:** Series A, $26M May 2024 - **Step-up i:** 2.4× - **Investors:** 7 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. 2022 2023 2024 **$11M** Seed **$26M** Series A - **First round:** Seed, $11M - **Biggest round:** $26M - **Between rounds:** 2.4 years ## The rounds - **May 2024** Series A **$26M** *7 new* [Y Combinator](https://millionrounds.com/fund/y-combinator) [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) [Khosla Ventures](https://millionrounds.com/fund/khosla-ventures) [Radical Ventures](https://millionrounds.com/fund/radical-ventures) [Pillar VC](https://millionrounds.com/fund/pillar-vc) [Zetta Venture Partners](https://millionrounds.com/fund/zetta-venture-partners) [Fifty Years](https://millionrounds.com/fund/fifty-years-industries-llc) Source recorded - **Dec 2021** Seed **$11M** No investor was named in the report. Reported by Pillar VC ## Founders and team From Nabla Bio's own website: 3 founders, 2 on the team. **Frances Anastassacos** Co-founder & President **Surge Biswas** Co-founder & CEO **George Church** Co-founder - **Rose Harrison** Chief Business Officer - **Katie Warfel** Board of directors ## 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. **Seed** 2021 **Series A** 2024 [Y Combinator](https://millionrounds.com/fund/y-combinator) [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) [Khosla Ventures](https://millionrounds.com/fund/khosla-ventures) [Radical Ventures](https://millionrounds.com/fund/radical-ventures) [Pillar VC](https://millionrounds.com/fund/pillar-vc) [Zetta Venture Partners](https://millionrounds.com/fund/zetta-venture-partners) [Fifty Years](https://millionrounds.com/fund/fifty-years-industries-llc) ## Everyone who backed them [Y Combinator](https://millionrounds.com/fund/y-combinator) Accelerator **1** round [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) Government **1** round [Khosla Ventures](https://millionrounds.com/fund/khosla-ventures) VC firm **1** round [Radical Ventures](https://millionrounds.com/fund/radical-ventures) VC firm **1** round [Pillar VC](https://millionrounds.com/fund/pillar-vc) VC firm **1** round [Zetta Venture Partners](https://millionrounds.com/fund/zetta-venture-partners) VC firm **1** round [Fifty Years](https://millionrounds.com/fund/fifty-years-industries-llc) VC firm **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=nabla-bio). ## Quick answers about Nabla Bio ### Who invested in Nabla Bio? Nabla Bio's investors include Y Combinator, National Science Foundation, Khosla Ventures, Radical Ventures and Pillar VC, and 2 more on record. ### How much has Nabla Bio raised? Nabla Bio has raised $37M across 2 rounds since 2021. ### When did Nabla Bio last raise? Nabla Bio's most recent round was a Series A of $26M in May 2024. ### What was Nabla Bio's biggest round? Its most recent round, $26M in May 2024, is also its largest on record. ### Who backed Nabla Bio first? Nabla Bio's first round on record, in May 2024, was backed by Y Combinator, National Science Foundation and Khosla Ventures and 4 others. ### What stage is Nabla Bio at? Nabla Bio's latest named round is a Series A, in May 2024. ### Where is Nabla Bio based? Nabla Bio is based in the United States. ## Companies like Nabla Bio 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)[**IMIO** $19M · Oct 2026](https://millionrounds.com/company/imio)[**Rejuvenate Bio** $13M · Oct 2026](https://millionrounds.com/company/rejuvenate-bio)[**Clinical Ink** $24M · Oct 2026](https://millionrounds.com/company/clinical-ink) ## 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