# Aunt Flow funding: rounds and investors > Aunt Flow has raised $10M across 2 rounds since 2018. Investors include Techstars, Precursor Ventures and Harlem Capital. Every round with its source. Source: https://millionrounds.com/company/aunt-flow (Millionrounds; every figure on the page links to its filing or article) United States · [Series A startup](https://millionrounds.com/companies) # Who invested in *Aunt Flow* 2 rounds we have observed, with the 18 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 Education Healthcare Funding summary Updated 26 Oct 2026 **$10M** raised across 2 rounds since 2018, from 2 sources **$1.5M** Seed **$8.5M** Series A - **Latest round:** Series A, $8.5M Apr 2022 - **Step-up i:** 5.7× - **Investors:** 18 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 **$1.5M** Seed **$8.5M** Series A - **First round:** Seed, $1.5M - **Biggest round:** $8.5M - **Between rounds:** 4.3 years ## The rounds - **Apr 2022** Series A **$8.5M** *1 new* *3 returning* [Techstars](https://millionrounds.com/fund/techstars) [Precursor Ventures](https://millionrounds.com/fund/precursor-ventures) [Harlem Capital](https://millionrounds.com/fund/harlem-capital) [VitalizeVC](https://millionrounds.com/fund/vitalize-venture-capital) Source recorded SEC filing: $8.4M sold, first sale Nov 2021 - **Jan 2018** Seed **$1.5M** *17 new* [Techstars](https://millionrounds.com/fund/techstars) [Craft Ventures](https://millionrounds.com/fund/craft-ventures) [Social Capital](https://millionrounds.com/fund/social-capital) [Precursor Ventures](https://millionrounds.com/fund/precursor-ventures) [Harlem Capital](https://millionrounds.com/fund/harlem-capital) [Rough Draft Ventures](https://millionrounds.com/fund/rough-draft-ventures) [Break Trail Ventures](https://millionrounds.com/fund/break-trail-ventures) [Edward Zimmerman](https://millionrounds.com/fund/edward-zimmerman) [Tom Rutledge](https://millionrounds.com/fund/tom-rutledge) Alicia Syrett Ashley Merrill David Fassler Eric Salzman Ethan Auslander Lumos Fund Marc Schwartzberg Rachel Lam Reported by Linkedin ## 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** 2018 **Series A** 2022 [Techstars](https://millionrounds.com/fund/techstars) [Precursor Ventures](https://millionrounds.com/fund/precursor-ventures) [Harlem Capital](https://millionrounds.com/fund/harlem-capital) [Craft Ventures](https://millionrounds.com/fund/craft-ventures) [Social Capital](https://millionrounds.com/fund/social-capital) [Rough Draft Ventures](https://millionrounds.com/fund/rough-draft-ventures) [VitalizeVC](https://millionrounds.com/fund/vitalize-venture-capital) [Break Trail Ventures](https://millionrounds.com/fund/break-trail-ventures) [Edward Zimmerman](https://millionrounds.com/fund/edward-zimmerman) [Tom Rutledge](https://millionrounds.com/fund/tom-rutledge) ## Everyone who backed them [Techstars](https://millionrounds.com/fund/techstars) VC firm **2** rounds [Precursor Ventures](https://millionrounds.com/fund/precursor-ventures) VC firm **2** rounds [Harlem Capital](https://millionrounds.com/fund/harlem-capital) VC firm **2** rounds [Craft Ventures](https://millionrounds.com/fund/craft-ventures) VC firm **1** round [Social Capital](https://millionrounds.com/fund/social-capital) VC firm **1** round [Rough Draft Ventures](https://millionrounds.com/fund/rough-draft-ventures) VC firm **1** round [VitalizeVC](https://millionrounds.com/fund/vitalize-venture-capital) VC firm **1** round [Break Trail Ventures](https://millionrounds.com/fund/break-trail-ventures) VC firm **1** round [Edward Zimmerman](https://millionrounds.com/fund/edward-zimmerman) VC firm **1** round [Tom Rutledge](https://millionrounds.com/fund/tom-rutledge) Angel **1** round Alicia Syrett no record of our own yet **1** round Ashley Merrill no record of our own yet **1** round David Fassler no record of our own yet **1** round Eric Salzman no record of our own yet **1** round Ethan Auslander no record of our own yet **1** round Lumos Fund no record of our own yet **1** round Marc Schwartzberg no record of our own yet **1** round Rachel Lam 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=aunt-flow). ## Also claim to have backed them These 3 firms list Aunt Flow 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. [Farvatn Venture](https://millionrounds.com/fund/farvatn-venture) Family office Per its own site [Planet 9 Capital](https://millionrounds.com/fund/planet-9-capital) VC firm Per its own site [Planet 9 Venture](https://millionrounds.com/fund/planet-9-venture) VC firm Per its own site ## Quick answers about Aunt Flow ### Who invested in Aunt Flow? Aunt Flow's investors include Techstars, Precursor Ventures, Harlem Capital, Craft Ventures and Social Capital, and 13 more on record. ### How much has Aunt Flow raised? Aunt Flow has raised $10M across 2 rounds since 2018. ### When did Aunt Flow last raise? Aunt Flow's most recent round was a Series A of $8.5M in Apr 2022. ### What was Aunt Flow's biggest round? Its most recent round, $8.5M in Apr 2022, is also its largest on record. ### Who backed Aunt Flow first? Aunt Flow's first round on record, in Jan 2018, was backed by Techstars, Craft Ventures and Social Capital and 14 others. ### What stage is Aunt Flow at? Aunt Flow's latest named round is a Series A, in Apr 2022. ### Where is Aunt Flow based? Aunt Flow is based in the United States. ## Companies like Aunt Flow 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