# Syntimmune funding: rounds and investors

> Syntimmune has raised $50M across 1 round since 2017. Investors include Apple Tree Partners. Every round with its source.

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

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

# Who invested in *Syntimmune*

One round we have observed, with the one investor 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 Healthcare

Funding summary Updated 26 Oct 2026

**$50M** raised across 1 round since 2017, from 1 source

- **Latest round:** Series B, $50M Jun 2017
- **Investors:** 1

See who backed them

## The rounds

- **Jun 2017** Series B **$50M** [Apple Tree Partners](https://millionrounds.com/fund/apple-tree-partners) Reported by FinSMEs SEC filing: $18M sold, first sale Jun 2017

## Founders and team

From Syntimmune's own website and the SEC filings it signed: 11 on the team.

- **Marc Dunoyer** Chief Executive Officer
- **Sean Christie** Chief Financial and Administration Officer
- **Erica Deacon** VP, Head of Information Technology
- **Gianluca Pirozzi** SVP, Head of Development, Regulatory and Safety
- **Nicola Heffron** SVP, Head of Global Marketing & Market Access
- **Scott Weintraub** SVP, Head of Development, Regulatory and Safety
- **Seng Cheng** SVP, Head of Research and Product Development
- **Shane Doyle** SVP, Head of Operations
- **Toby Freyman** VP, Head of Business Development
- **David De Graaf** Executive Officer, Director i
- **Laurence Blumberg** Executive Officer, Director i

On the board, as filed i *Aaron Kantoff* *Burt Adelman* *Richard Blumberg* *Sam Hall* *Seth Harrison*

## Everyone who backed them

[Apple Tree Partners](https://millionrounds.com/fund/apple-tree-partners) VC firm **1** round

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

## Quick answers about Syntimmune

### Who invested in Syntimmune?

Syntimmune's investors include Apple Tree Partners.

### How much has Syntimmune raised?

Syntimmune has raised $50M across 1 round since 2017.

### When did Syntimmune last raise?

Syntimmune's most recent round was a Series B of $50M in Jun 2017.

### What was Syntimmune's biggest round?

Its most recent round, $50M in Jun 2017, is also its largest on record.

### Who backed Syntimmune first?

Syntimmune's first round on record, in Jun 2017, was backed by Apple Tree Partners.

### What stage is Syntimmune at?

Syntimmune's latest named round is a Series B, in Jun 2017.

### Where is Syntimmune based?

Syntimmune is based in the United States.

## Companies like Syntimmune

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)[**AI** $18M · Oct 2026](https://millionrounds.com/company/ai)[**Baba** $40M · Oct 2026](https://millionrounds.com/company/baba)[**IMIO** $19M · Oct 2026](https://millionrounds.com/company/imio)

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