English, German

- German Maritime Arbitration Association (GMAA)
- Deutscher Schulschiff-Verein e.V. "Schulschiff Deutschland"
- German Armed Forces - Regional Liaison Command (KVK) LEER, Liaison Staffofficer CIMIC-Inland (OF-2/Reserve)
- Mercedes-Benz R/C 107 SL-Club Deutschland e.V.
- Federal Association of Dark Bees Germany e.V.
- Fishing Club - Angelsportverein Leer und Umgegend e.V. (ASV-Leer)
- Hunters Association - Jägerschaft Leer e.V.

Board:
 - German Maritime Arbitration Association (GMAA)

Marine Insurance, Claims Management and Emergency Response, Claims/Loss Adjustment, Loss of Hire, Builders & Repairers Risk, Salvage and Assistance, Casualty Investigation, General Average, Loss Prevention, Recourse, Civil-Military Cooperation (CIMIC)

- Diplom-Industrial Engineer in Maritime Transport / University of Applied Sciences Bremen
- Master Mariner STCW II/2 (Management Level / unlimited)
- Member of the IUMI Salvage Forum (2018-2022)
- Certification, Maritime Dispute Resolution and Arbitration / Lloyd's Maritime Academy (London)
- Electronics Technician / IHK Bremerhaven
- ex-Navy Officer/fixed term 12 years (Destroyer (Z103B), Frigate (F123), Fast Patrolboat (S143A), Submarine (U206A), Minehunter (MJ332)- and sweeper (SM343))
- ex-Shipofficer (General Cargo & Container up to 78.000t DWT / 6.500 TEU)