# Vellum funding: rounds and investors > Vellum has raised $27M across 2 rounds since 2023. Investors include Y Combinator, Pioneer Fund and Rebel Fund. Every round with its source. Source: https://millionrounds.com/company/vellum (Millionrounds; every figure on the page links to its filing or article) United States · [Series A startup](https://millionrounds.com/companies) # Who invested in *Vellum* 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. AI Funding summary Updated 26 Oct 2026 **$27M** raised across 2 rounds since 2023, from 2 sources **$7.0M** Seed **$20M** Series A - **Latest round:** Series A, $20M Jul 2025 - **Step-up i:** 2.9× - **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. 2024 2025 **$7.0M** Seed **$20M** Series A - **First round:** Seed, $7.0M - **Biggest round:** $20M - **Between rounds:** 21 months ## The rounds - **Jul 2025** Series A **$20M** *4 new* [Y Combinator](https://millionrounds.com/fund/y-combinator) [Pioneer Fund](https://millionrounds.com/fund/pioneer-fund-2) [Rebel Fund](https://millionrounds.com/fund/rebel-fund) [Twenty Two Ventures](https://millionrounds.com/fund/twenty-two-ventures) Source recorded - **Oct 2023** Seed **$7.0M** *3 new* [Fin Capital](https://millionrounds.com/fund/fin-capital) [Acrew Capital](https://millionrounds.com/fund/acrew-capital) [Flourish Ventures](https://millionrounds.com/fund/flourish-ventures-2) Source recorded ## 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** 2023 **Series A** 2025 [Y Combinator](https://millionrounds.com/fund/y-combinator) [Pioneer Fund](https://millionrounds.com/fund/pioneer-fund-2) [Rebel Fund](https://millionrounds.com/fund/rebel-fund) [Fin Capital](https://millionrounds.com/fund/fin-capital) [Acrew Capital](https://millionrounds.com/fund/acrew-capital) [Flourish Ventures](https://millionrounds.com/fund/flourish-ventures-2) [Twenty Two Ventures](https://millionrounds.com/fund/twenty-two-ventures) ## Everyone who backed them [Y Combinator](https://millionrounds.com/fund/y-combinator) Accelerator **1** round [Pioneer Fund](https://millionrounds.com/fund/pioneer-fund-2) Private equity **1** round [Rebel Fund](https://millionrounds.com/fund/rebel-fund) VC firm **1** round [Fin Capital](https://millionrounds.com/fund/fin-capital) Private equity **1** round [Acrew Capital](https://millionrounds.com/fund/acrew-capital) VC firm **1** round [Flourish Ventures](https://millionrounds.com/fund/flourish-ventures-2) VC firm **1** round [Twenty Two Ventures](https://millionrounds.com/fund/twenty-two-ventures) VC firm **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=vellum). ## Also claim to have backed them These 5 firms list Vellum 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. [FCA Venture Partners](https://millionrounds.com/fund/fca-venture-partners) VC firm Per its own site [Eastlink Capital](https://millionrounds.com/fund/eastlink-capital) VC firm Per its own site [Socii Capital](https://millionrounds.com/fund/socii-capital) VC firm Per its own site [InvestInData](https://millionrounds.com/fund/investindata) Angel network Per its own site [Formulate Ventures](https://millionrounds.com/fund/formulate-ventures) VC firm Per its own site ## Quick answers about Vellum ### Who invested in Vellum? Vellum's investors include Y Combinator, Pioneer Fund, Rebel Fund, Fin Capital and Acrew Capital, and 2 more on record. ### How much has Vellum raised? Vellum has raised $27M across 2 rounds since 2023. ### When did Vellum last raise? Vellum's most recent round was a Series A of $20M in Jul 2025. ### What was Vellum's biggest round? Its most recent round, $20M in Jul 2025, is also its largest on record. ### Who backed Vellum first? Vellum's first round on record, in Oct 2023, was backed by Fin Capital, Acrew Capital and Flourish Ventures. ### What stage is Vellum at? Vellum's latest named round is a Series A, in Jul 2025. ### Where is Vellum based? Vellum is based in the United States. ## Companies like Vellum In the same sector, and raised in the last eighteen months. [**SpaceX** $42B · Oct 2026](https://millionrounds.com/company/spacex)[**xPay** $1.5M · Oct 2026](https://millionrounds.com/company/xpay)[**Albert Invent** $20M · Oct 2026](https://millionrounds.com/company/albert-invent)[**FORT Robotics** $39M · Oct 2026](https://millionrounds.com/company/fort-robotics)[**Pika** $216M · Oct 2026](https://millionrounds.com/company/pika)[**Vertical Semiconductor** $84M · Oct 2026](https://millionrounds.com/company/vertical-semiconductor) ## 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