OverviewSuggest Edit

Open-Xchange is a software company that develops, markets and sells web-based communication, collaboration and office productivity software. Tha Company's solutions enable full integration of email, documents, scheduling and social media.

HQKöln, DE
Employee Ratings4.7

Recent NewsAll News

Latest Updates

Employees (est.) (Jul 2021)196
Cybersecurity ratingBMore

Key People/Management at Open-Xchange

Andreas Gauger

Andreas Gauger

Chief Executive Officer
Carsten Dirks

Carsten Dirks

John Broomfield

John Broomfield

VP Marketing
Bert Hubert

Bert Hubert

Principal, PowerDNS
Timo Sirainen

Timo Sirainen

Creator & Chief Architect, Dovecot OY
Stephan Martin

Stephan Martin

EVP Services
Show more

Open-Xchange Office Locations

Open-Xchange has offices in Köln, Bremen, Dortmund, Hamburg and in 10 other locations
Köln, DE (HQ)
72 Hohenzollernring
Bremen, DE
22 Stavendamm
Dortmund, DE
1 Gerberstraße
Hamburg, DE
389 Fuhlsbüttler Str.
Nürnberg, DE
14 Rollnerstraße
Olpe, DE
5 Olper Hütte
Show all (14)

Open-Xchange Financials and Metrics

Summary Metrics

Founding Date


Open-Xchange total Funding

$67.9 m

Open-Xchange latest funding size

$24.88 m

Time since last funding

4 years ago

Open-Xchange investors

Open-Xchange's latest funding round in October 2017 was reported to be $24.9 m. In total, Open-Xchange has raised $67.9 m
Show all financial metrics

Open-Xchange Cybersecurity Score

Cybersecurity ratingPremium dataset



SecurityScorecard logo

Open-Xchange Online and Social Media Presence

Embed Graph

Open-Xchange Blogs

DNS encryption in OX PowerDNS: where we are

Back in 2018, when the IETF introduced two standards on DNS encryption, Open-Xchange and PowerDNS were amongst the first to adopt and offer encrypted DNS through DNS-over-HTTPS (DoH) and DNS-over-TLS (DoT).

Building trust in European DNS resolvers

Open-Xchange recently announced its support for the European Resolver Policy, an industry initiative to provide more transparency and reliability around the operation of DNS resolvers in Europe.

Open-Xchange releases DNSdist 1.6.0

Open-Xchange is pleased to announce the release of DNSdist 1.6.0, the latest version of its state-of-the-art DNS-aware load balancer, which protects, balances and filters internet users’ DNS traffic in front of OX PowerDNS or legacy recursive servers and is used to optimize the DNS traff…

Open-Xchange Frequently Asked Questions

  • When was Open-Xchange founded?

    Open-Xchange was founded in 2005.

  • Who are Open-Xchange key executives?

    Open-Xchange's key executives are Andreas Gauger, Carsten Dirks and John Broomfield.

  • How many employees does Open-Xchange have?

    Open-Xchange has 196 employees.

  • Who are Open-Xchange competitors?

    Competitors of Open-Xchange include Code Ocean, ng-voice and X&Go.

  • Where is Open-Xchange headquarters?

    Open-Xchange headquarters is located at 72 Hohenzollernring, Köln.

  • Where are Open-Xchange offices?

    Open-Xchange has offices in Köln, Bremen, Dortmund, Hamburg and in 10 other locations.

  • How many offices does Open-Xchange have?

    Open-Xchange has 14 offices.