Claudia Frese

Chief Executive Officer

Claudia Frese, born in 1971, has been Chief Executive Officer of STRATO AG and a member of the Executive Board of IONOS since September 2020.

After receiving her degree in International Studies at the University of Cologne, Claudia Frese started her career with a variety of start-ups before holding a number of management positions at eBay GmbH. She then moved on to adviqo AG, where she was in charge of all online activities. Before STRATO, Frese was CEO of MyHammer AG and MyHammer Holding AG. Altogether, she has more than 20 years of experience in digital business.

STRATO Management - Claudia Frese

Britta Schmidt

Chief Financial Officer

Britta Schmidt has been Chief Financial Officer (CFO) at STRATO AG and its subsidiary Cronon GmbH since April 2022. She was appointed CFO at IONOS in 2021, where she is responsible for people services in addition to finance.

Britta has over 15 years’ experience in finance and investor relations. She’s a business economist and industrial management assistant by training and started her financial career at Siemens Enterprise Communications (now Atos) in 2007. From 2010 onwards Britta worked across many aspects of finance for Scout24, managing the implementation of the initial public offering (IPO) in 2015 and many transformational projects. As CFO at Autoscout24 from 2020 to 2021, she presided over the spin-off of Autoscout24 from the Scout24 Group, in effect creating an independent brand and organization.

STRATO Management - Britta Schmidt

Hüseyin Dogan

Chief Executive Officer

Hüseyin Dogan, born in 1979, has been Chief Operations Officer (COO) of STRATO AG since 2018. In this position he is responsible for the operational business of STRATO AG. In addition he has also been COO of 1&1 Internet SE since 2017.

He has more than 20 years of management experience in the international finance and e-commerce business. During that time, he has held leading positions in the finance department at General Electric and was accountable for the customer service and experience at amazon.de.

STRATO Management - Hüseyin Dogan

Henning Kettler

Chief Technology Officer

Henning Kettler, born in 1964, has been Chief Technology Officer of STRATO AG since April 2018. He joined 1&1 Internet SE as CTO in 2008 and is now CTO of the 1&1 Hosting Group. Henning Kettler has a degree in engineering and previously spent many years at Vodafone subsidiary Arcor in various management positions, including CIO and Head of Customer Care.


Achim Weiss

Chief Officer Professional Services

Achim Weiss was the responsible technical director at 1&1 Internet AG, the most successful subsidiary of TecDAX-listed United Internet AG, up to 2008. There, he developed the world’s largest web hosting platform for the rapidly scaling mass market. With the GMX and Web.de e-mail services, he oversaw technical development of Europe’s most important e-mail architecture. Achim Weiss is one of the world’s top experts on developing massive scaling Internet infrastructures. As CEO at ProfitBricks, he is both founder and shareholder. He is in charge of corporate strategy and is responsible for ongoing technical development.

STRATO Management - Achim Weiss

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