# Gelesis funding: rounds and investors

> Gelesis has raised $170M across 7 rounds since 2008. Investors include Vitruvian Partners. Every round with its source.

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

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

# Who invested in *Gelesis*

7 rounds we have observed, with the one investor 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

**$170M** raised across 7 rounds since 2008, from 7 sources

**$16M** Series A **$3.6M** Venture **$2.6M** Venture **$12M** Series E **$22M** Growth **$30M** Round **$84M** Round

- **Latest round:** Round, $84M Dec 2019
- **Step-up i:** 2.8×
- **Investors:** 1

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.

2008 2010 2012 2014 2016 2018

**$16M** Series A

**$3.6M** Venture

**$2.6M** Venture

**$12M** Series E

**$22M** Growth

**$30M** Round

**$84M** Round

- **First round:** Series A, $16M
- **Biggest round:** $84M
- **Usual gap between rounds:** 2.9 years

## The rounds

- **Dec 2019** Round **$84M** *1 new* [Vitruvian Partners](https://millionrounds.com/fund/vitruvian-partners) Reported by FinSMEs
- **Mar 2018** Round **$30M** No investor was named in the report. Reported by FinSMEs
- **Mar 2015** Growth **$22M** No investor was named in the report. From a historical funding record
- **May 2014** Series E **$12M** No investor was named in the report. From a historical funding record
- **Jun 2011** Venture **$2.6M** No investor was named in the report. Reported by masshightech.com SEC filing: $2.6M sold, first sale May 2011
- **May 2011** Venture **$3.6M** No investor was named in the report. Reported by masshightech.com SEC filing: $3.6M sold, first sale Apr 2011
- **Jan 2008** Series A **$16M** No investor was named in the report. Reported by masshightech.com

## Founders and team

From the SEC filings it signed: 2 on the team.

- **Yishai Zohar** Director, President, and Chief Executive Officer i
- **Elliot Maltz** Treasurer i

On the board, as filed i *Elon Boms* *John LaMattina* *Meghan Fitzgerald* *Robert Forrester*

## Everyone who backed them

[Vitruvian Partners](https://millionrounds.com/fund/vitruvian-partners) VC firm **1** round

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

## Also claim to have backed them

These 3 firms list Gelesis 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.

[LaunchCapital](https://millionrounds.com/fund/launchcapital) VC firm Per its own site

[Oryx Fund](https://millionrounds.com/fund/oryx-fund) VC firm Per its own site

[Hambro Perks](https://millionrounds.com/fund/hambro-perks) VC firm Per its own site

## Quick answers about Gelesis

### Who invested in Gelesis?

Gelesis's investors include Vitruvian Partners.

### How much has Gelesis raised?

Gelesis has raised $170M across 7 rounds since 2008.

### When did Gelesis last raise?

Gelesis's most recent round was an Undisclosed round of $84M in Dec 2019.

### What was Gelesis's biggest round?

Its most recent round, $84M in Dec 2019, is also its largest on record.

### Who backed Gelesis first?

Gelesis's first round on record, in Dec 2019, was backed by Vitruvian Partners.

### What stage is Gelesis at?

Gelesis's latest named round is an Undisclosed round, in Dec 2019.

### Where is Gelesis based?

Gelesis is based in the United States.

## Companies like Gelesis

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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