Who invested in SFA Therapeutics

One round we have observed, with the 4 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Biotech

Y Combinator: S21

Funding summaryUpdated 26 Oct 2026

$4.5Mraised across 1 round since 2023, from 1 source

Latest round: Round, $4.5MNov 2023
Investors: 4

See who backed them

The rounds

Nov 2023
Round$4.5M
Source recorded

Founders and team

From SFA Therapeutics's own website: 2 founders, 1 on the team.

Alla ArzumanyanCo-Founder & Chief Development Officer

Ira C. SpectorCo-Founder & Chief Scientific Officer

Shawn O'BrienCEO and Chairman

AdvisersMark Feitelson

Everyone who backed them

Y CombinatorAccelerator1round

Boost VCVC firm1round

Ben Franklin Technology Partners of Southeastern PennsylvaniaGovernment1round

Asymmetry VenturesVC firm1round

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

Also claim to have backed them

These 2 firms list SFA Therapeutics 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.

North South VenturesVC firmPer its own site

ImmeasurableFamily officePer its own site

Quick answers about SFA Therapeutics

Who invested in SFA Therapeutics?

SFA Therapeutics's investors include Y Combinator, Boost VC, Ben Franklin Technology Partners of Southeastern Pennsylvania and Asymmetry Ventures.

How much has SFA Therapeutics raised?

SFA Therapeutics has raised $4.5M across 1 round since 2023.

When did SFA Therapeutics last raise?

SFA Therapeutics's most recent round was an Undisclosed round of $4.5M in Nov 2023.

What was SFA Therapeutics's biggest round?

Its most recent round, $4.5M in Nov 2023, is also its largest on record.

Who backed SFA Therapeutics first?

SFA Therapeutics's first round on record, in Nov 2023, was backed by Y Combinator, Boost VC and Ben Franklin Technology Partners of Southeastern Pennsylvania and 1 others.