![Markus Oswald](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Markus Oswald is currently Co-Managing Director at Martens Deutsche Telekabel GmbH and Co-Managing Director at Cabletech Kabel- und Antennentechnik GmbH.
Formerly, Mr. Oswald was Chief Executive Officer at Tele Columbus AG from 2023 to 2025.
Education includes undergraduate degrees from Sheffield Hallam University and the University of Duisburg-Essen.
| Companies | Position | Start |
|---|---|---|
Martens Deutsche Telekabel GmbH
 Martens Deutsche Telekabel GmbH Cable/Satellite TVConsumer Services Provides television, internet and telephone services | Chief Executive Officer | - |
Cabletech Kabel- und Antennentechnik GmbH
 Cabletech Kabel- und Antennentechnik GmbH Electronics DistributorsDistribution Services Wholesales electronic components and telecommunications equipment | Chief Executive Officer | - |
| Companies | Position | End |
|---|---|---|
| TELE COLUMBUS AG | Chief Executive Officer | 31/12/2025 |
Active
Inactive
Listed companies
Private companies
| Private companies | 5 |
|---|---|
Tele Columbus AG
 Tele Columbus AG Cable/Satellite TVConsumer Services Provides cable television, telephone communications and internet subscription services | Consumer Services |
Sheffield Hallam University
 Sheffield Hallam University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
University of Duisburg-Essen
 University of Duisburg-Essen Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Cabletech Kabel- und Antennentechnik GmbH
Cabletech Kabel- und Antennentechnik GmbH Electronics DistributorsDistribution Services Wholesales electronic components and telecommunications equipment | Distribution Services |
Martens Deutsche Telekabel GmbH
Martens Deutsche Telekabel GmbH Cable/Satellite TVConsumer Services Provides television, internet and telephone services | Consumer Services |
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