Contact Privacy Statement Imprint
BTC GROUP (EN)
Contact Privacy Statement Imprint
BTC Group Corporate Governance Corporate Responsibility Partner Careers
Share
Contact
BTC Group
Headquarter Germany

Phone +49 (0)441 3612-0
office@btc-ag.com
Kontakt

About us

Corporate Governance

BTC has a holistic, industry-oriented IT consulting offering and thus a leading position in the fields of energy, telecommunications, public sector, industry and services. The offer includes consulting, system integration as well as application and system management. Another focus is on energy-related software products.

On this page we would like to introduce our management board.

Our corporate governance

Dr. Jörg Ritter

After graduating in computer science, Dr. Jörg Ritter worked for several years as a software engineer and division manager at IDS Prof. Scheer in Saarbrücken. He then worked as a research assistant at the Oldenburg computer science institute OFFIS. In 2000, he completed his doctorate in computer science at the University of Oldenburg.

After co-founding and developing the start-up OSC-IM Systems AG, which was acquired by BTC Business Technology Consulting AG in 2004, he joined the BTC Management Board in 2005. As Chairman of the Management Board, he is now responsible for corporate and business development as well as marketing and sales for the BTC Group.

Dr. Ritter is also involved in the IBS IT & Business School in an honorary capacity as Deputy Chairman of the Board and as 1st Chairman in the development of the regional IT network TECI_OL.

Percy Hamer
Percy Hamer was born in Bremen in 1969 and completed his degree in computer science in 1993 at the University of Bremen. He started his professional career at Stadtwerke Bremen AG as a project manager for new technologies and strategies. In 1998 he switched to CA Computer Associates, where he established the IT Consulting division for Germany and Austria. For CTS Eventim AG from 2003 he was responsible for IT services in the customer business as well as for the FIFA Football World Cup 2006. From 2006 he took over responsibility for IT infrastructure services and established the global cooperation at Logica Germany. As CIO Europe and General Manager at Konica Minolta, he consolidated IT on a European level from 2013. As BTC board member, Percy Hamer has been responsible for operational business and central functions since 2020.

Supervisory board

Dr. Frank Reiners - Chairman of the Supervisory Board

Dr. Frank Reiners has been a member of the Executive Board of EWE AG since October 1, 2024.

Dr. Frank Reiners was previously Chief Financial Officer and member of the management board of Open Grid Europe GmbH (Essen), where he had worked since February 2018. Before that, he held various management positions, including Senior Vice President Controlling at Uniper SE (Düsseldorf) and various management positions at E.ON SE (including in Düsseldorf and the Netherlands) and Deutsche Telekom AG (Bonn).

Born in Nuremberg in 1968, Dr. Frank Reiners holds a diploma in business administration from the University of Erlangen-Nuremberg and received his doctorate there in 1999.

Detlef Roß
Mr. Detlef Roß (*1959) is an electrician and owner of the "Licht Kontor", a specialized company for lighting, building system technology, electrical installation and security technology. He lives in Delmenhorst and is the chairman of the Delmenhorst South branch of the SPD.

Mr. Roß has been a member of the Delmenhorst City Council since 2006. On the Council, his current roles are Vice-Member of the Management Committee, Vice-Chairman of the Planning Committee and Chairperson of the Environment Committee.

In 2011, Mr. Roß was elected chairman of the Delmenhorst Fishing Club with around 1,000 members.
Assunta Hamm
Assunta Hamm (*1965) has a degree in business administration and has been employed as a management consultant at BTC AG since 2007. After completing her education, she worked in various companies, most recently for 9 years as a SAP consultant and department head at Schüco International in Bielefeld. Ms Hamm is a company works council member of BTC AG, a member of the Munster site works council and is also active in various works council committees.
Thomas Walter
Thomas Walter (*1965) has a degree in economics and was an employee and managing director of a trading company from 1995 to 1998. In 1998 he started working as an SAP consultant. Since 2000, Mr Walter has been employed at BTC AG as a consultant in various fields of activity. After holding the position of Deputy Chairman of the Works Council since 2004, he was elected Chairman of the Works Council in 2013. In 2014, he was also elected Chairman of the Group Works Council.
Ingo Schwarz
Ingo Schwarz is a retired police officer.

Management

Bernhard Lenzin

Managing Director BTC (Switzerland) AG

Christian Meyer

Managing Director Corporate Unit IT & Procurement, Chief Information Officer (CIO) Chief Procurement Officer (CPO)

Christian Rothberger

Managing Director best-blu consulting with energy GmbH

Dr. Clemens Fischer

Managing Director Market Unit Konzern

Dr. Sandra Steinert

Managing Director Business Unit Software Factory

Dr. Dirk Höner

Executive SEC Selecta Energy Consulting GmbH

Funda Ketenci

Chairman of the Board and General Manager BTC Bilişim Hizmetleri A.Ş.

Hans Jürgen Holberg

Executive BTC Embedded Systems AG

Dr. Heinrich Tschochohei

Chief Sustainability Officer

Helmut Tiemann

Managing Director Business Unit SAP Solutions

Jürgen Skodda

Managing Director Market Units Industry and Service Provider

Lars Austermann

Managing Director Market Unit Energy & Telecommunication

Ludmil Fischer

Executive PRO CONSULT Management- and Systemberatung GmbH

Michael Lumma

Managing Director Market Unit Cloud Services

Özden Dogan

Managing Director BTC IT Services GmbH

Pawel Dekiert

Executive BTC Software Systems Sp. z o.o.

Piotr Haglauer

Executive BTC Software Systems Sp. z o.o.

Ralf Deters

Marketing Manager of the Corporate Unit Communication & Marketing

Ruedi Koch

Managing Director BTC (Switzerland) AG

Sascha Sambach

Managing Director BTC IT Services GmbH

Dr. Till Luhmann

Managing Director Corporate Unit Corporate Development

Tim Austermann

Managing Director Market Unit Public Sector

Dr. Udo Brockmeyer

Executive BTC Embedded Systems AG

Udo Busjan

Managing Director Business Unit Application & System Management

Contact

BTC AG
BTC Group Headquarter Germany
Telefon
+49 (0)441 3612-0
E-Mail
office@btc-ag.com