• Atwood
• Blackwater
• C-Dive
• Chet Morrison
• Cross Group
• Enbridge
• Epic Diving and Marine
• Fairway Resources
• Fairwinds
• Germanischer Lloyd
• Global Divers & Marine
• Helis Oil and Gas
• Hess Corporation
• Hunt Oil
• Legacy
• LeTourneau
• Louisiana Oilfield Divers
• Marlin Divers
• Maritech Resources
• Merit Energy
• Murphy
• Nabors
• Nippon Exploration
• Noble Energy
• Oceaneering
• Phoenix International
• Plains Pipeline
• Proserve
• Rooster
• Samson
• Seamar Divers International
• Seaquest
• Shell Oil
• Southland Energy
• Specialty Offshore
• Tetra Technologies
• Total
• Transocean
• Triton Divers
• Veolia Environmental Services
• W & T Offshore
• Williams Field Service
• Yuma