# Ataraxis funding: rounds and investors > Ataraxis has raised $24M across 2 rounds since 2024. Investors include Obvious Ventures, Giant Ventures and AIX Ventures. Every round with its source. Source: https://millionrounds.com/company/ataraxis (Millionrounds; every figure on the page links to its filing or article) United States · [Series A startup](https://millionrounds.com/companies) # Who invested in *Ataraxis* 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 Healthcare Medical Devices Follow Ataraxis and see its new rounds in your feed. [Start following](https://millionrounds.com/login?join=1&why=follow&next=%2Fcompany%2Fataraxis) Funding summary Updated 5 Nov 2026 **$24M** raised across 2 rounds since 2024, from 3 sources **$4.0M** Seed **$20M** Series A - **Latest round:** Series A, $20M Mar 2025 - **Led by:** AIX Ventures - **Step-up i:** 5.1× - **Investors:** 7 (3 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. 2025 **$4.0M** Seed **$20M** Series A - **First round:** Seed, $4.0M - **Biggest round:** $20M - **Between rounds:** 4 months ## The rounds - **Mar 2025** Series A **$20M** *5 new* *2 returning* [AIX Ventures](https://millionrounds.com/fund/aix-ventures) Lead [Founders Fund](https://millionrounds.com/fund/founders-fund) [Obvious Ventures](https://millionrounds.com/fund/obvious-ventures) [Giant Ventures](https://millionrounds.com/fund/giant-ventures) [Bertelsmann](https://millionrounds.com/fund/bertelsmann) [Floating Point](https://millionrounds.com/fund/floating-point) [Thiel Bio](https://millionrounds.com/fund/thiel-bio) Reported by TechCrunch and 1 other SEC filing: $20M sold, first sale Dec 2024 - **Nov 2024** Seed **$4.0M** *2 new* [Obvious Ventures](https://millionrounds.com/fund/obvious-ventures) Lead [Giant Ventures](https://millionrounds.com/fund/giant-ventures) Lead Reported by AlleyWatch SEC filing: $20M sold, first sale Dec 2024 ## Founders and team From Ataraxis's own website: 6 on the team. - **Stephen Cilley** Chief Executive Officer - **Eric Smith** Chief Revenue Officer - **Glen Scott** Chief People Officer - **Marv Lasnick** Chief Technology Officer - **Autumn Brown** VP, Finance - **Lisa Lavin** Director of Communication ## 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** 2024 **Series A** 2025 [Obvious Ventures](https://millionrounds.com/fund/obvious-ventures) L [Giant Ventures](https://millionrounds.com/fund/giant-ventures) L [AIX Ventures](https://millionrounds.com/fund/aix-ventures) L [Founders Fund](https://millionrounds.com/fund/founders-fund) [Bertelsmann](https://millionrounds.com/fund/bertelsmann) [Floating Point](https://millionrounds.com/fund/floating-point) [Thiel Bio](https://millionrounds.com/fund/thiel-bio) ## Everyone who backed them [Obvious Ventures](https://millionrounds.com/fund/obvious-ventures) Accelerator **2** rounds, led 1 [Giant Ventures](https://millionrounds.com/fund/giant-ventures) VC firm **2** rounds, led 1 [AIX Ventures](https://millionrounds.com/fund/aix-ventures) VC firm **1** round, led 1 [Founders Fund](https://millionrounds.com/fund/founders-fund) VC firm **1** round [Bertelsmann](https://millionrounds.com/fund/bertelsmann) Corporate VC **1** round [Floating Point](https://millionrounds.com/fund/floating-point) VC firm **1** round [Thiel Bio](https://millionrounds.com/fund/thiel-bio) VC firm **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=ataraxis). ## Quick answers about Ataraxis ### Who invested in Ataraxis? Ataraxis's investors include Obvious Ventures, Giant Ventures, AIX Ventures, Founders Fund and Bertelsmann, and 2 more on record. AIX Ventures led its latest round. ### How much has Ataraxis raised? Ataraxis has raised $24M across 2 rounds since 2024. ### When did Ataraxis last raise? Ataraxis's most recent round was a Series A of $20M in Mar 2025, led by AIX Ventures. ### What was Ataraxis's biggest round? Its most recent round, $20M in Mar 2025, is also its largest on record. ### Who backed Ataraxis first? Ataraxis's first round on record, in Nov 2024, was backed by Obvious Ventures and Giant Ventures. ### What stage is Ataraxis at? Ataraxis's latest named round is a Series A, in Mar 2025. ### Where is Ataraxis based? Ataraxis is based in the United States. ### Who led Ataraxis's rounds? Obvious Ventures led the Seed in 2024; AIX Ventures led the Series A in 2025. ## Companies like Ataraxis In the same sector, and raised in the last eighteen months. [**Journify** $12M · Nov 2026](https://millionrounds.com/company/journify)[**Laza Medical** $160M · Nov 2026](https://millionrounds.com/company/laza-medical)[**Nooks** $543M · Nov 2026](https://millionrounds.com/company/nooks)[**Agrani Labs** $123M · Nov 2026](https://millionrounds.com/company/agrani-labs)[**Guava** $13M · Nov 2026](https://millionrounds.com/company/guava)[**Applied Compute** $580M · Nov 2026](https://millionrounds.com/company/applied-compute) ## 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