Superior
| Company | Position |
| Koloman Handler Ring Alliance | Managing Director |
| ASG | Managing Director |
| TLC / Sennebogen | Owner and Managing Director |
| TLC / Sennebogen | Consultant of Sennebogen Family |
| TLC / Sennebogen | Managing and Sennebogen Production Director |
| Pepperl+Fuchs | CEO |
| SMP | Executive Vice President |
| SMP | Vice President Operations |
| Atreus | Atreus Director |
| Mektec | European Director (COO) |
| Premium Sound Solutions | CEO |
Subordinate
| Company | Position |
| Pepperl+Fuchs | Head of Engineering / later became successor |
| Jürgenhake | Quality Manager / my successor for 1,5 year |
| SMP | Lean Manager |
| Mektec | Technichal Director |
| Premium Sound Solutions | HR Manager |
| Premium Sound Solutions | Production Manager |
External partner / customer
| Period while employed at | Company / position |
| ASG | Varenco customer / owner |
| Jedenak | LCI / Quality auditor |
| Jedenak | Ryobi supplier and customer / Quality Manager |
| SMP | Daimler AG HU Supplier Management |
