A borderless Internet fueled by independent innovators, ensuring it remains open, secure, and accessible for everyone.
We create and innovate open-source software-based solutions that enable our customers to maximize the value of their services.

Dear visitor,
Ever since Open-Xchange was founded back in 2005 the philosophy driving the company has been clear. Our primary goal has always been to keep the internet free and open like it was planned to be. We do this by creating software that helps our community, partners, and customers to provide services that are competitive with the monopolies.
Through our products we've created an open, safe environment for people to connect and collaborate. We build platforms based on the idea that maximising value to both customers and users is a sustainable long term strategy in fast moving competitive markets.
Open-Xchange products create vendor independence, and generate trust in our products by providing full transparency and control over system governance through our OS business model. With OX App Suite we develop user friendly and secure email and collaboration software, while PowerDNS and Dovecot Pro complete our offering with robust and scalable IMAP and DNS solutions. Hundreds of millions of users worldwide use Open-Xchange products at home or work.
Today, with a proven record in agile software development, we continue to evolve our products and services based on this approach by delivering the only integrated, open-source messaging, collaboration and productivity stack for Telcos, Hosters and Service Providers.
As we continue to push the boundaries of technology and strive for excellence, we are grateful for your support and belief in our vision. Thank you for being a part of our journey to shape a better, more open internet for everyone.
Sincerely,
Andreas Gauger

Andreas Gauger
CEO of Open-Xchange
Ever since Open-Xchange was founded back in 2005, the philosophy driving the company has been clear. Our primary goal has always been to keep the internet free and open like it was planned to be. We do this by creating software that helps our community, partners, and customers to provide services that are competitive against those from the global hyperscalers.
Through our products we've created an open, safe environment for people to connect and collaborate. We build platforms based on the idea that maximizing value to both customers and users is a sustainable long-term strategy in fast moving competitive markets.
Open-Xchange products create vendor independence and generate trust by providing full transparency and control over system governance through our open source business model. With OX App Suite, we deliver user friendly and secure email and collaboration tools, while PowerDNS and Dovecot Pro complete our offering with robust and scalable IMAP and DNS solutions. Hundreds of millions of users worldwide already use Open-Xchange products at home or work.
Today, with a proven track record in agile software development, we continue to evolve our products and services based on this approach by delivering the only integrated, open source messaging, collaboration and productivity stack for Telcos, Hosters and Service Providers.
As we continue to push the boundaries of technology and strive for excellence, we are grateful for your support and belief in our vision. Thank you for being a part of our journey to shape a better, more open internet for everyone.
Andreas Gauger

180
Engineers working
on OX products
every day

220m+
Users around
the world

10
Open-Xchange offices
across the globe

270+
People
working for Open-Xchange

Leadership at Open-Xchange
Open-Xchange is a non-hierarchical cell-based organization, with cells operating independently to allow for swift decision-making without traditional hierarchical delays. This approach encourages innovation, as each cell is closer to the issues it addresses and can respond rapidly to any changes. It also creates a culture of accountability and ownership, as individual colleagues feel directly responsible for their cell's success. The executive team (below) officially represents the company to our investors and fulfils all legal responsibilities.

Andreas Gauger
OX's CEO Andreas Gauger has been heavily involved in shaping the cloud and hosting market in Germany since...
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Andreas Gauger
OX's CEO Andreas Gauger has been heavily involved in shaping the cloud and hosting market in Germany since the 1990s.
He founded his first software company when he was still at school and, in 1995, was co-founder of the German hosting pioneer Schlund+Partner. From 2000 to 2008, as the board spokesperson, Gauger drove forward the growth of 1&1 to become both the European market leader in hosting and a leading German ISP and telecommunications provider.
In 2010, he co-founded the internationally successful cloud provider ProfitBricks, of which he was CEO until 2016. Since then, he has been supporting investment companies as a consultant in the SaaS environment.


Dirk Valbert
Valbert is responsible for Finance, Legal and Corporate Services at Open-Xchange. He is an experienced management...
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Dirk Valbert
Valbert is responsible for Finance, Legal and Corporate services at Open-Xchange. He is an experienced management and finance professional, with more than 25 years’ experience in the technology industry, and came to Open-Xchange from Swyx Solutions GmbH / Enreach Germany Group, where he was CFO for more than six years.
He was previously CEO of Schauf GmbH and CFO of conVISUAL AG. Before that, he was an Associate at Theron Business Consulting GmbH, after holding Financial Controller and Head of CapEx Controlling roles at Mannesmann Mobilfunk GmbH.


Dr. Paul-Josef Patt
Chairman of the Supervisory Board
Dr. Paul-Josef Patt is CEO of eCAPITAL ENTREPRENEURIAL PARTNERS, a German venture capital company. He started his career as project manager at Roland Berger & Partner, the leading German strategy consultancy. Later he worked for a German retail corporate as Director of Business Development and Strategy. By management buy-in he became the executive partner of a highly expansive retail company with lastly more than 700 branches. After his successful exit, Patt started working as a business angel and venture capitalist. He took over the lead at eCAPITAL in 2004 and has overseen the company’s impressive growth. He has a strong track record in financing and developing Deep Tech and Impact Start ups and as lead investor. Past investments include Novaled (sold to Samsung in 2013), sonnen (sold to Shell in 2019), Jedox (sold to Insight Partners in 2021), Dryad, 1KOMMA5° or Papershift. Patt serves on several boards, including Jedox, Heliatek and beeOLED.
Curt Gunsenheimer
Curt Gunsenheimer, Senior Partner at Iris Capital, joined the company in 2002. He is responsible for investments in late-stage and growth capital across Europe and supports companies across Germany and France in stages of global expansion. Gunsenheimer has twenty years of experience in venture capital and public-market financing of growth technology companies, with particular expertise in the field of software. Prior to joining Iris Capital, he worked at Goldman Sachs and Robertson Stephens.
Patrick Schaudel
Patrick Schaudel, SVP Product at IONOS With many years of experience in the IT and software industry, Patrick is a proven expert for cloud-solutions, e-business and online marketing with focus on the SMB business. At IONOS, he and his teams are responsible for the entire product portfolio for the digital success of companies of all sizes as well as the public sector. In previous positions at companies like BBDO and Haufe Group, he held several positions in B2B marketing and sales as well as product management with the focus on digital transformation.
Katja Speck
Katja Speck is CMO at robo advisor and SaaS provider VisualVest where she is responsible for Innovation, Marketing, Product and Sustainability. Prior to that, she held responsible positions in the tech industry for over 15 years, including General Manager of the non-profit organization ID4me, part of the team of SPRIND - Federal Agency for Disruptive Innovation and VP Marketing, Sales and Business Development at international eCommerce specialist asknet. She has been closely networked with the tech scene in Europe, the Americas, and Israel for years and shares her experience as a lecturer at Karlsruhe University of Applied Sciences. She regularly speaks on innovation and impact topics at renowned conferences such as DLD. In 2019, she was awarded the "InspiringFifty DACH" prize, a non-profit organization whose mission is to increase diversity in the technology industry.
Dr. Joachim Bernecker
-
2005
Open-Xchange Founded
Rafael Laguna, Frank Hoberg and Martin Kauss founded Open-Xchange AG with headquarters in Olpe and Nuremberg. One year later, Open-Xchange builds a highly scalable SaaS based email and collaboration product for 1&1. This becomes the Open-Xchange Hosting Edition, which is deployed by a number of Hosting and Service providers.
-
2012
OX App Suite Released
Open-Xchange releases the first version of OX App Suite, which becomes today's flagship product. OX App Suite is a feature-rich, web-based groupware solution which replaces Open-Xchange Hosting and Server Edition.
-
2012
OX App Suite Security
Open-Xchange releases OX Guard. This is a highly secure end-user encryption feature for OX App Suite. Utilizing the highly secure PGP standard, combined with outstanding performance features, makes OX Guard amazingly secure, but also extremely simple to use.
-
2015
Dovecot and PowerDNS
After years of working with Dovecot as its IMAP server of choice, Open-Xchange announces a merger with Finland's Dovecot OY. Open-Xchange also announces that it will merge with PowerDNS from The Netherlands, meaning it now has a full stack solution.
-
2016
OX Drive App
Open-Xchange releases its first release of a dedicated, stand-alone native app – the OX Drive App. Open-Xchange also acquires EnoughSoftware to help deliver its mobile strategy.
-
2019
OX Cloud Datacenters EU/US
By 2019 Open-Xchange’s service version of OX App Suite (now called OX Cloud) has become a big success and is in demand from customers in the EU and the US. As a result, Open-Xchange launches more data centers in both the EU and the US.
-
2020
New CEO at Open-Xchange
Rafael Laguna announces he is handing over the running of Open-Xchange to Andreas Gauger, former CEO of 1&1. Andreas’ appointment and his wealth of experience reaffirms Open-Xchange’s commitment to providing excellence in the email market.
-
2022
Launch of OX App Suite 8.0
Open-Xchange releases version 8.0 of its flagship product. This includes a new, redesigned User Interface that is both modern, yet familiar and adheres to the latest design standards, as well as focusing on usability.
-
2022
Launch of OX CMC Control Panel
Open-Xchange releases a new control panel for its OX Cloud service. This is offered free to all customers who can now benefit from this new administration interface. It provides features such as Customer Care services, dashboards, user metrics and much more.
-
2023
OX AI and New Datacenters India
Early in 2023, Open-Xchange announces a new AI integration into its OX App Suite Cloud products. Fully integrated into the User Interface, OX AI utilizes the power of AI to aid and streamline end-user workflow. Due to customer demand and to better support the Africa and APAC regions, Open-Xchange also opens new data centers in India.
-
2024
Embracing a cell based organizational structure
Open-Xchange is reorganized as a non-hierarchical cell structure organization, allowing for swift decision-making and faster response to market changes.
-
The road ahead
Today, Open-Xchange has more than 270 employees in 10 offices around the globe. OX products are used by more than 220 million people at home or at work. Trend: upwards!
2005
Open-Xchange Founded
Rafael Laguna, Frank Hoberg and Martin Kauss founded Open-Xchange AG with headquarters in Olpe and Nuremberg. One year later, Open-Xchange builds a highly scalable SaaS based email and collaboration product for 1&1. This becomes the Open-Xchange Hosting Edition, which is deployed by a number of Hosting and Service providers.

2012
OX App Suite Released
Open-Xchange releases the first version of OX App Suite, which becomes today's flagship product. OX App Suite is a feature-rich, web-based groupware solution which replaces Open-Xchange Hosting and Server Edition.

2012
OX App Suite Security
Open-Xchange releases OX Guard. This is a highly secure end-user encryption feature for OX App Suite. Utilizing the highly secure PGP standard, combined with outstanding performance features, makes OX Guard amazingly secure, but also extremely simple to use.

2015
Dovecot and PowerDNS
After years of working with Dovecot as its IMAP server of choice, Open-Xchange announces a merger with Finland's Dovecot OY. Open-Xchange also announces that it will merge with PowerDNS from The Netherlands, meaning it now has a full stack solution.

2016
OX Drive App
Open-Xchange releases its first release of a dedicated, stand-alone native app – the OX Drive App. Open-Xchange also acquires EnoughSoftware to help deliver its mobile strategy.

2019
OX Cloud Datacenters EU/US
By 2019 Open-Xchange’s service version of OX App Suite (now called OX Cloud) has become a big success and is in demand from customers in the EU and the US. As a result, Open-Xchange launches more data centers in both the EU and the US.

2020
New CEO at Open-Xchange
Rafael Laguna announces he is handing over the running of Open-Xchange to Andreas Gauger, former CEO of 1&1. Andreas’ appointment and his wealth of experience reaffirms Open-Xchange’s commitment to providing excellence in the email market.

2022
Launch of OX App Suite 8.0
Open-Xchange releases version 8.0 of its flagship product. This includes a new, redesigned User Interface that is both modern, yet familiar and adheres to the latest design standards, as well as focusing on usability.

2022
Launch of OX CMC Control Panel
Open-Xchange releases a new control panel for its OX Cloud service. This is offered free to all customers who can now benefit from this new administration interface. It provides features such as Customer Care services, dashboards, user metrics and much more.

2023
OX AI and New Datacenters India
Early in 2023, Open-Xchange announces a new AI integration into its OX App Suite Cloud products. Fully integrated into the User Interface, OX AI utilizes the power of AI to aid and streamline end-user workflow. Due to customer demand and to better support the Africa and APAC regions, Open-Xchange also opens new data centers in India.

2024
Embracing a cell based organizational structure
Open-Xchange is reorganized as a non-hierarchical cell structure organization, allowing for swift decision-making and faster response to market changes.

The road ahead
Today, Open-Xchange has more than 270 employees in 10 offices around the globe. OX products are used by more than 220 million people at home or at work. Trend: upwards!

Faces@OX
Immerse yourself into a mosaic of individual stories that bring our thriving community to life, offering you a unique perspective into the heart of our diverse and innovative working environment. Reveal the exciting narratives that shape our dynamic team, and gain an intimate understanding of the driving forces behind our collective success.
Faces@OX
Immerse yourself into a mosaic of individual stories that bring our thriving community to life, offering you a unique perspective into the heart of our diverse and innovative working environment. Reveal the exciting narratives that shape our dynamic team, and gain an intimate understanding of the driving forces behind our collective success.