Coolsailing — Costa Rica Deep Sea Fishing
- Coolsailing
- Cooperation of Skippers of Historic Sailing Ships SHZH
- Cope Marine
- Copper Island Dock Systems
- Corfu Yachting
- Corfu Yachts Tsirigotis
- Cornish Crabbers
- Coronet
- Corporate Sailing Melbourne Docklands
- Corporate Yacht Charters
- Corroseal,Inc.
- Corrosion Block
- Corrosion Technologies Corporation
- Corsair Class Association of Australia
- Corsair Marine
- Cosmos Yachting
- Cost Plus Marine
- Costa Del Mar
- Costa marina cruiseship
- Costa Rica & Guatemala Deep Sea Sports Fishing
- Costa Rica Beaches Vacation
- Costa Rica Deep Sea Fishing