# SFA Therapeutics funding: rounds and investors

> SFA Therapeutics has raised $4.5M across 1 round since 2023. Investors include Y Combinator, Boost VC and Ben Franklin Technology Partners of Southeastern...

Source: https://millionrounds.com/company/sfa-therapeutics (Millionrounds; every figure on the page links to its filing or article)

United States · [Funded startup](https://millionrounds.com/companies)

# 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 summary Updated 26 Oct 2026

**$4.5M** raised across 1 round since 2023, from 1 source

- **Latest round:** Round, $4.5M Nov 2023
- **Investors:** 4

See who backed them

## The rounds

- **Nov 2023** Round **$4.5M** [Y Combinator](https://millionrounds.com/fund/y-combinator) [Boost VC](https://millionrounds.com/fund/boost-vc) [Ben Franklin Technology Partners of Southeastern Pennsylvania](https://millionrounds.com/fund/ben-franklin-techn) [Asymmetry Ventures](https://millionrounds.com/fund/asymmetry-ventures) Source recorded

## Founders and team

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

**Alla Arzumanyan** Co-Founder & Chief Development Officer

**Ira C. Spector** Co-Founder & Chief Scientific Officer

- **Shawn O'Brien** CEO and Chairman

Advisers *Mark Feitelson*

## Everyone who backed them

[Y Combinator](https://millionrounds.com/fund/y-combinator) Accelerator **1** round

[Boost VC](https://millionrounds.com/fund/boost-vc) VC firm **1** round

[Ben Franklin Technology Partners of Southeastern Pennsylvania](https://millionrounds.com/fund/ben-franklin-techn) Government **1** round

[Asymmetry Ventures](https://millionrounds.com/fund/asymmetry-ventures) VC firm **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=sfa-therapeutics).

## 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 Ventures](https://millionrounds.com/fund/north-south-ventures) VC firm Per its own site

[Immeasurable](https://millionrounds.com/fund/immeasurable) Family office Per 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.

### What stage is SFA Therapeutics at?

SFA Therapeutics's latest named round is an Undisclosed round, in Nov 2023.

### Where is SFA Therapeutics based?

SFA Therapeutics is based in the United States.

## Companies like SFA Therapeutics

In the same sector, and raised in the last eighteen months.

[**Star Therapeutics** $325M · Oct 2026](https://millionrounds.com/company/star-therapeutics)[**Promaxo** $106M · Oct 2026](https://millionrounds.com/company/promaxo)[**Prolific Machines** $105M · Oct 2026](https://millionrounds.com/company/prolific-machines)[**IMIO** $19M · Oct 2026](https://millionrounds.com/company/imio)[**Clinical Ink** $24M · Oct 2026](https://millionrounds.com/company/clinical-ink)[**Rejuvenate Bio** $13M · Oct 2026](https://millionrounds.com/company/rejuvenate-bio)

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