# Syapse funding: rounds and investors

> Syapse has raised $45M across 4 rounds since 2011. Investors include Social Capital, The Social+Capital Partnership and Safeguard Scientifics.

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

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

# Who invested in *Syapse*

4 rounds we have observed, with the 10 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 Healthcare

Funding summary Updated 26 Oct 2026

**$45M** raised across 4 rounds since 2011, from 4 sources

**$1.6M** Seed **$3.0M** Series A **$10M** Series B **$30M** Series D

- **Latest round:** Series D, $30M Nov 2017
- **Step-up i:** 3×
- **Investors:** 10

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.

2011 2012 2013 2014 2015 2016 2017

**$1.6M** Seed

**$3.0M** Series A

**$10M** Series B

**$30M** Series D

- **First round:** Seed, $1.6M
- **Biggest round:** $30M
- **Usual gap between rounds:** 2.1 years

## The rounds

- **Nov 2017** Series D **$30M** *7 new* *2 returning* [Social Capital](https://millionrounds.com/fund/social-capital) [Ascension](https://millionrounds.com/fund/ascension) [Safeguard Scientifics](https://millionrounds.com/fund/safeguard-scientifics) [Merck Global Health Innovation Fund](https://millionrounds.com/fund/merck-global-health-innovation-fund) [Amgen](https://millionrounds.com/fund/amgen) [GE](https://millionrounds.com/fund/ge) [Intermountain Ventures](https://millionrounds.com/fund/intermountain-ventures) [Roche Ventures](https://millionrounds.com/fund/roche-ventures) [Medidata](https://millionrounds.com/fund/medidata) Reported by FinSMEs
- **Jul 2014** Series B **$10M** *1 new* *2 returning* [Social Capital](https://millionrounds.com/fund/social-capital) [The Social+Capital Partnership](https://millionrounds.com/fund/the-social-capital-partnership) [Safeguard Scientifics](https://millionrounds.com/fund/safeguard-scientifics) From a historical funding record SEC filing: $10.0M sold, first sale Jun 2014
- **Jan 2013** Series A **$3.0M** *2 new* [Social Capital](https://millionrounds.com/fund/social-capital) [The Social+Capital Partnership](https://millionrounds.com/fund/the-social-capital-partnership) Reported by techcrunch.com
- **Jan 2011** Seed **$1.6M** No investor was named in the report. Reported by techcrunch.com

## Founders and team

From the SEC filings it signed: 4 on the team.

- **Jonathan Hirsch** Executive Officer, Director i
- **Ken Tarkoff** Executive Officer, Director i
- **Tony Loeser** Executive Officer i
- **Trishan Arul** Executive Officer i

On the board, as filed i *Alexander Hardy* *Frank Williams* *Gary Kurtzman* *Jay Zaveri* *John Kuelper*

## 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.

**Seed** 2011 **Series A** 2013 **Series B** 2014 **Series D** 2017 [Social Capital](https://millionrounds.com/fund/social-capital) [The Social+Capital Partnership](https://millionrounds.com/fund/the-social-capital-partnership) [Safeguard Scientifics](https://millionrounds.com/fund/safeguard-scientifics) [Ascension](https://millionrounds.com/fund/ascension) [Merck Global Health Innovation Fund](https://millionrounds.com/fund/merck-global-health-innovation-fund) [Amgen](https://millionrounds.com/fund/amgen) [GE](https://millionrounds.com/fund/ge) [Intermountain Ventures](https://millionrounds.com/fund/intermountain-ventures) [Roche Ventures](https://millionrounds.com/fund/roche-ventures) [Medidata](https://millionrounds.com/fund/medidata)

## Everyone who backed them

[Social Capital](https://millionrounds.com/fund/social-capital) VC firm **3** rounds

[The Social+Capital Partnership](https://millionrounds.com/fund/the-social-capital-partnership) VC firm **2** rounds

[Safeguard Scientifics](https://millionrounds.com/fund/safeguard-scientifics) Private equity **2** rounds

[Ascension](https://millionrounds.com/fund/ascension) VC firm **1** round

[Merck Global Health Innovation Fund](https://millionrounds.com/fund/merck-global-health-innovation-fund) Corporate VC **1** round

[Amgen](https://millionrounds.com/fund/amgen) Corporate VC **1** round

[GE](https://millionrounds.com/fund/ge) Corporate VC **1** round

[Intermountain Ventures](https://millionrounds.com/fund/intermountain-ventures) Corporate VC **1** round

[Roche Ventures](https://millionrounds.com/fund/roche-ventures) Growth equity **1** round

[Medidata](https://millionrounds.com/fund/medidata) Corporate VC **1** round

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

## Quick answers about Syapse

### Who invested in Syapse?

Syapse's investors include Social Capital, The Social+Capital Partnership, Safeguard Scientifics, Ascension and Merck Global Health Innovation Fund, and 5 more on record.

### How much has Syapse raised?

Syapse has raised $45M across 4 rounds since 2011.

### When did Syapse last raise?

Syapse's most recent round was a Series D of $30M in Nov 2017.

### What was Syapse's biggest round?

Its most recent round, $30M in Nov 2017, is also its largest on record.

### Who backed Syapse first?

Syapse's first round on record, in Jan 2013, was backed by Social Capital and The Social+Capital Partnership.

### What stage is Syapse at?

Syapse's latest named round is a Series D, in Nov 2017.

### Where is Syapse based?

Syapse is based in the United States.

## Companies like Syapse

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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