# WellTheory funding: rounds and investors > WellTheory has raised $38M across 3 rounds since 2025. Investors include BoxGroup, Lux Capital and General Catalyst. Every round with its source. Source: https://millionrounds.com/company/welltheory (Millionrounds; every figure on the page links to its filing or article) United States · [Series A startup](https://millionrounds.com/companies) # Who invested in *WellTheory* 3 rounds we have observed, with the 6 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 **$38M** raised across 3 rounds since 2025, from 3 sources **$5.0M** Seed **$14M** Series A **$19M** Series A - **Latest round:** Series A, $14M Oct 2025 - **Biggest round:** $19M Series A · Oct 2025 - **Step-up i:** 2.8× - **Investors:** 6 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. 2026 **$5.0M** Seed **$14M** Series A **$19M** Series A - **First round:** Seed, $5.0M - **Biggest round:** $19M - **Between rounds:** 5 months ## The rounds - **Oct 2025** Series A **$14M** *2 new* *2 returning* [General Catalyst](https://millionrounds.com/fund/general-catalyst) [BoxGroup](https://millionrounds.com/fund/boxgroup) [Lux Capital](https://millionrounds.com/fund/lux-capital) [Samsung Next](https://millionrounds.com/fund/samsung-next) Source recorded - **Oct 2025** Series A **$19M** *1 new* *3 returning* [General Catalyst](https://millionrounds.com/fund/general-catalyst) [BoxGroup](https://millionrounds.com/fund/boxgroup) [Lux Capital](https://millionrounds.com/fund/lux-capital) [Dorm Room Fund](https://millionrounds.com/fund/dorm-room-fund) Source recorded - **May 2025** Seed **$5.0M** *3 new* [BoxGroup](https://millionrounds.com/fund/boxgroup) [Lux Capital](https://millionrounds.com/fund/lux-capital) [Susa Ventures](https://millionrounds.com/fund/susa-ventures) Source recorded ## Founders and team From WellTheory's own website: 1 founder, 3 on the team. **Ellen Rudolph** WellTheory CEO & Co-Founder - **Carly Michelson** Clinical Ops Manager - **Check Coverage** Partner - **Jesse St. Jean** Program Manager Care ## 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** 2025 **Series A** 2025 **Series A** 2025 [BoxGroup](https://millionrounds.com/fund/boxgroup) [Lux Capital](https://millionrounds.com/fund/lux-capital) [General Catalyst](https://millionrounds.com/fund/general-catalyst) [Samsung Next](https://millionrounds.com/fund/samsung-next) [Susa Ventures](https://millionrounds.com/fund/susa-ventures) [Dorm Room Fund](https://millionrounds.com/fund/dorm-room-fund) ## Everyone who backed them [BoxGroup](https://millionrounds.com/fund/boxgroup) VC firm **3** rounds [Lux Capital](https://millionrounds.com/fund/lux-capital) VC firm **3** rounds [General Catalyst](https://millionrounds.com/fund/general-catalyst) VC firm **2** rounds [Samsung Next](https://millionrounds.com/fund/samsung-next) Corporate VC **1** round [Susa Ventures](https://millionrounds.com/fund/susa-ventures) VC firm **1** round [Dorm Room Fund](https://millionrounds.com/fund/dorm-room-fund) VC firm **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=welltheory). ## Also claim to have backed them These 3 firms list WellTheory 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. [Ingeborg Investments](https://millionrounds.com/fund/ingeborg-investments) VC firm Per its own site [Coalition Operators](https://millionrounds.com/fund/coalition-operators) VC firm Per its own site [Opal Ventures](https://millionrounds.com/fund/opal-ventures) VC firm Per its own site ## Quick answers about WellTheory ### Who invested in WellTheory? WellTheory's investors include BoxGroup, Lux Capital, General Catalyst, Samsung Next and Susa Ventures, and 1 more on record. ### How much has WellTheory raised? WellTheory has raised $38M across 3 rounds since 2025. ### When did WellTheory last raise? WellTheory's most recent round was a Series A of $19M in Oct 2025. ### What was WellTheory's biggest round? Its most recent round, $19M in Oct 2025, is also its largest on record. ### Who backed WellTheory first? WellTheory's first round on record, in May 2025, was backed by BoxGroup, Lux Capital and Susa Ventures. ### What stage is WellTheory at? WellTheory's latest named round is a Series A, in Oct 2025. ### Where is WellTheory based? WellTheory is based in the United States. ## Companies like WellTheory 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