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.

Funding summaryUpdated 26 Oct 2026

$38Mraised across 3 rounds since 2025, from 3 sources

$5.0MSeed$14MSeries A$19MSeries A

Latest round: Series A, $14MOct 2025
Biggest round: $19MSeries A · Oct 2025
Step-upi: 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

$5.0MSeed$14MSeries A$19MSeries A

First round: Seed, $5.0M
Biggest round: $19M
Between rounds: 5 months

The rounds

Oct 2025
Series A$14M2 new2 returning
Source recorded
Oct 2025
Series A$19M1 new3 returning
Source recorded
May 2025
Seed$5.0M3 new
Source recorded

Founders and team

From WellTheory's own website: 1 founder, 3 on the team.

Ellen RudolphWellTheory CEO & Co-Founder

Carly MichelsonClinical Ops Manager
Check CoveragePartner
Jesse St. JeanProgram 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.

Seed2025Series A2025Series A2025

Everyone who backed them

BoxGroupVC firm3rounds

Lux CapitalVC firm3rounds

General CatalystVC firm2rounds

Samsung NextCorporate VC1round

Susa VenturesVC firm1round

Dorm Room FundVC firm1round

Missing a round, or an investor who was in one? Tell us.

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.