Who invested in Hyasynth Bio

5 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.

Pharma

Funding summaryUpdated 26 Oct 2026

$2.5Mraised across 5 rounds since 2014, from 5 sources

$60KSeed$520KSeed$1.9MDebt

Latest round: Debt, $1.9MDec 2021
Step-upi: 3.7×
Investors: 7

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.

20142015201620172018201920202021

$60KSeed?Venture?Venture$1.9MDebt

First round: Seed, $60K
Biggest round: $1.9M
Usual gap between rounds: 6 months

The rounds

Dec 2021
Debt$1.9M2 new1 returning
Source recorded
Jun 2015
Seed$520K3 new
- SOSV
- Andrew Hessel
- Ethan Oren Perlstein
From a historical funding record
Mar 2015
VentureAmount undisclosed
No investor was named in the report.
From a historical funding record
Nov 2014
VentureAmount undisclosed
No investor was named in the report.
From a historical funding record
May 2014
Seed$60K2 new
- SOS Ventures
- IndieBio
From a historical funding record

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.

Seed2014Venture2014Venture2015Seed2015Debt2021

SOSV

MassChallengeSOS Ventures

Anges Quebec

IndieBioAndrew HesselEthan Oren Perlstein

Everyone who backed them

SOSVVC firm2rounds

MassChallengeAccelerator1round

SOS VenturesVC firm1round

Anges QuebecAngel network1round

IndieBioAccelerator1round

Andrew Hesselno record of our own yet1round

Ethan Oren Perlsteinno record of our own yet1round

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

Also claim to have backed them

This firm lists Hyasynth Bio as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.