# Open-Xchange funding: rounds and investors

> Open-Xchange has raised $25M across 1 round since 2017. Investors include Iris Capital and eCAPITAL. Every round with its source.

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

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

# Who invested in *Open-Xchange*

One round we have observed, with the 2 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.

Software Collaboration Tools

Funding summary Updated 26 Oct 2026

**$25M** raised across 1 round since 2017, from 1 source

- **Latest round:** Round, $25M Oct 2017
- **Investors:** 2

See who backed them

## The rounds

- **Oct 2017** Round **$25M** [Iris Capital](https://millionrounds.com/fund/iris) [eCAPITAL](https://millionrounds.com/fund/ecapital) Reported by FinSMEs

## Founders and team

From Open-Xchange's own website: 5 on the team.

- **Andreas Gauger** Chief Executive Officer
- **Dirk Valbert** Chief Financial Officer
- **Errol Vanderhorst** Chief Commercial Officer
- **Jacob Fahrenkrug** Chief Technology Officer
- **Dr. Paul-Josef Patt** Chairman of the Supervisory Board

## Everyone who backed them

[Iris Capital](https://millionrounds.com/fund/iris) VC firm **1** round

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

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

## Also claim to have backed them

This firm lists Open-Xchange as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.

[BayBG Venture Capital](https://millionrounds.com/fund/baybg-venture-capi) VC firm Per its own site

## Quick answers about Open-Xchange

### Who invested in Open-Xchange?

Open-Xchange's investors include Iris Capital and eCAPITAL.

### How much has Open-Xchange raised?

Open-Xchange has raised $25M across 1 round since 2017.

### When did Open-Xchange last raise?

Open-Xchange's most recent round was an Undisclosed round of $25M in Oct 2017.

### What was Open-Xchange's biggest round?

Its most recent round, $25M in Oct 2017, is also its largest on record.

### Who backed Open-Xchange first?

Open-Xchange's first round on record, in Oct 2017, was backed by Iris Capital and eCAPITAL.

### What stage is Open-Xchange at?

Open-Xchange's latest named round is an Undisclosed round, in Oct 2017.

### Where is Open-Xchange based?

Open-Xchange is based in Germany.

## Companies like Open-Xchange

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

[**F13** $5.0M · Sept 2026](https://millionrounds.com/company/f13)[**Oceanloop** $83M · Aug 2026](https://millionrounds.com/company/oceanloop)[**Qodia** $1.4M · Aug 2026](https://millionrounds.com/company/qodia)[**Synera** $86M · Jul 2026](https://millionrounds.com/company/synera)[**STARK** $576M · Jun 2026](https://millionrounds.com/company/stark)[**GALVANY** $12M · Jun 2026](https://millionrounds.com/company/galvany)

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