- Bremer Bereederungsgesellschaft, Germany
- Carsten Rehder Reederei GmbH, Germany
- E.R. Schiffahrt GmbH & Cie, Germany
- Hapag Lloyd Container Linie, Germany
- Leonhardt & Blumberg, Germany
- Nassco Shipyard, USA
- Osprey Shipmanagement Inc., USA
- Pacific Gulf Marine Inc, USA
- Reederei Juengerhans, Germany
- Reederei Laeisz, Germany
- Reefership Marine Services, Ltd. (Dole), Costa Rica
- Sealift Inc., USA
- Schluessel Reederei, Germany
- Matson Navigation
- Maersk Line, Limited
- Crowley
- Horizon Lines
- American President Lines
- Sea Launch Project
- Military Sealift Command (MSC)
- Tropical Shipping
- Transocean
- Chevron Shipping
- Alaska Tanker
- BP Shipping
- Mediterranean Shipping Company (MSC)
- Thien & Heyenga
- PKS Offshore Services(Peter Kiewit & Sons)
- Hornbeck Offshore Services
- Princess Cruise Line
- Carnival Cruise Line
- Norwegian Cruise Line
- Crystal Cruise Line
- TeeKay Shipping
- Genmar
