Profile
Stephan Witteler has been Chairman of the Supervisory Board for O3SIS AG since 2007.
He is Equity Partner of BEITEN BURKHARDT and Vice Chairman of the Legal Council at BITKOM (German Association for Information Technology, Telecommunications, and New Media).
He was a Member of the Executive Board at T-Systems International GmbH.
He has experience in the management and governance of the IT and telecommunication industry.
Dr. Witteler holds a PhD.
Stephan Witteler active positions
| Companies | Position | Start |
|---|---|---|
O3SIS AG
 O3SIS AG Information Technology ServicesTechnology Services O3SIS IT AG provides software solutions providing personal mobile data applications and enabling technology to 1st tier mobile network operators. It's managed service provides for a complete outsourcing of mobile data applications including hosting, operations and maintenance and customer care. It's flagship product 'Unified Mobile Directory (UMD)' is a high-end address book, synchronization and application integration platform. The company was founded in 1996 and is headquartered in Overath, Germany. | Chairman | - |
Former positions of Stephan Witteler
| Companies | Position | End |
|---|---|---|
T-Systems International GmbH
 T-Systems International GmbH Information Technology ServicesTechnology Services T-Systems International GmbH engages in the development, implementation, operation, and marketing of client- and industry-specific solutions in the information processing and telecommunications sectors. These include security, data processing, information management, training, and consulting services. The company was founded on August 30, 2004 and is headquartered in Frankfurt, Germany. | Corporate Officer/Principal | - |
Experiences
Positions held
Connections
1st degree connections
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 2 |
|---|---|
O3SIS AG
O3SIS AG Information Technology ServicesTechnology Services O3SIS IT AG provides software solutions providing personal mobile data applications and enabling technology to 1st tier mobile network operators. It's managed service provides for a complete outsourcing of mobile data applications including hosting, operations and maintenance and customer care. It's flagship product 'Unified Mobile Directory (UMD)' is a high-end address book, synchronization and application integration platform. The company was founded in 1996 and is headquartered in Overath, Germany. | Technology Services |
T-Systems International GmbH
T-Systems International GmbH Information Technology ServicesTechnology Services T-Systems International GmbH engages in the development, implementation, operation, and marketing of client- and industry-specific solutions in the information processing and telecommunications sectors. These include security, data processing, information management, training, and consulting services. The company was founded on August 30, 2004 and is headquartered in Frankfurt, Germany. | Technology Services |
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