![Achim Sieren](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>)
Achim Sieren is currently the Co-Managing Director at Consenso Consulting GmbH.
Previously, he worked as the Chief Operating Officer & Executive Vice President at GK Software SE.
| Companies | Position | Start |
|---|---|---|
Consenso Consulting GmbH
 Consenso Consulting GmbH Miscellaneous Commercial ServicesCommercial Services Provides business consulting services | Chief Executive Officer | - |
| Companies | Position | End |
|---|---|---|
| GK SOFTWARE SE | Corporate Officer/Principal | 2015-08-31 |
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Private companies
| Private companies | 2 |
|---|---|
GK Software SE
 GK Software SE Packaged SoftwareTechnology Services Develops retail software for corporations and local stores | Technology Services |
Consenso Consulting GmbH
Consenso Consulting GmbH Miscellaneous Commercial ServicesCommercial Services Provides business consulting services | Commercial Services |
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