Who invested in EndoStim

8 rounds we have observed, with the 5 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

Funding summaryUpdated 26 Oct 2026

$45Mraised across 8 rounds since 2009, from 8 sources

$550KVenture$775KVenture$6.0MSeries A$5.5MVenture$9.1MVenture$14MSeries D$6.4MDebt$2.5MSeries E

Latest round: Series E, $2.5MMay 2015
Biggest round: $14MSeries D · Jun 2013
Investors: 5

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.

201020112012201320142015

$550KVenture$775KVenture$6.0MSeries A$5.5MVenture$9.1MVenture$14MSeries D$6.4MDebt$2.5MSeries E

First round: Venture, $550K
Biggest round: $14M
Usual gap between rounds: 10 months

The rounds

May 2015
Series E$2.5M1 returning
- Prolog Ventures
From a historical funding recordSEC filing: $2.5M sold, first sale May 2015
Jul 2014
Debt$6.4M
No investor was named in the report.
From a historical funding recordSEC filing: $6.4M sold, first sale Jun 2014
Jun 2013
Series D$14M2 new1 returning
Reported by bizjournals.comSEC filing: $14M sold, first sale Dec 2012
Jan 2013
Venture$9.1M1 new
- Billiken Angels Network
Reported by sec.govSEC filing: $9.1M sold, first sale Dec 2012
Dec 2011
Venture$5.5M
No investor was named in the report.
Reported by sec.govSEC filing: $5.5M sold, first sale Nov 2011
Jul 2010
Series A$6.0M2 new
- Sante Ventures
- Vectis Healthcare & Life Sciences Fund
Reported by stlouis.bizjournals.comSEC filing: $6.0M sold, first sale Jul 2010
Oct 2009
Venture$775K
No investor was named in the report.
From a historical funding recordSEC filing: $775K sold, first sale Sept 2009
Jul 2009
Venture$550K
No investor was named in the report.
From a historical funding recordSEC filing: $550K sold, first sale Jul 2009

Founders and team

From EndoStim's own website: 3 on the team.

Eric GoornoChief Executive Officer
Greg WilsonChief Financial Officer
Hazim AnsariChief Legal Counsel

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.

Venture2009Venture2009Series A2010Venture2011Venture2013Series D2013Debt2014Series E2015

Prolog Ventures

Sante Ventures

Billiken Angels NetworkVectis Healthcare & Life Sciences FundVectis Healthcare & Life Sciences Fund II

Everyone who backed them

Prolog VenturesVC firm2rounds

Sante VenturesVC firm2rounds

Billiken Angels NetworkAngel network1round

Vectis Healthcare & Life Sciences FundVC firm1round

Vectis Healthcare & Life Sciences Fund IIVC firm1round

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

Quick answers about EndoStim

Who invested in EndoStim?

EndoStim's investors include Prolog Ventures, Sante Ventures, Billiken Angels Network, Vectis Healthcare & Life Sciences Fund and Vectis Healthcare & Life Sciences Fund II.