All Boating Charters
- Chasin Dreams Boat Tours
- Chasin Fins
- Chasing Tails
- Chatham inshore charters
- Chef Charles the Fishing Chef
- Chinese Junk by Ratee Petra Hua-Hin
- Chocolate Milk Charters
- Choctawhatchee Bay Fishing Charters
- Chrissy’s Coastal Bend Adventure
- Chromeseekers Sportfishing – Frankfort Sunset
- Chum Crazy Charters
- Circle hook charters
- Ciro Aliperta Boat Tour
- Classic Sailing Yacht – Malta And Beyond
- Classic Sport Yacht
- Classic Water Tours Saint Tropez
- Clay Phillips Guide & Rides
- Clear Boat Bahamas
- Clear Water Adventures
- Clearly Hooked
- Clicquot Yacht – Private All Inclusive
- Clint's Guide Service – Cruises
- Coast Runner Outfitters
- Coastal Current Charters
- Coastal Escape Boat Charters Malta
- Coastal Friends Boat Tours
- Coastal Guide Service LLC Bay Cruising
- Coastal Life Charters & Adventures
- Coastal Runners, LLC – 25'
- Coastal Runners, LLC – 35'
- Coastline Charters
- Coastline Private Tours
- Coba Belize
- Cocoa Beach Manatee And Dolphin Tours
- Cocolizo Charter
- Columbiariverfishingguide
- Comino & Gozo Boat Charter – Malta
- Comino Blue Lagoon, Gozo & Caves – Lucky Lady
- Comino Blue Lagoon, Gozo & Caves–Atlantis II
- Comino Charters
- Comino&Gozo Boat Charter – Blue Lagoon
- Comino&Gozo – Jet Ski
- Comino, Blue Lagoon & Gozo Private Boat Trips
- CominoPlus Boat Charters – Experience Comino
- Commodore Yachting Croatia
- Comngetit Charters
- Compass Boat Charters
- Conch Queen Charters
- Conquistador Fishing Chartes
- Cool Change Charters
- Cool Runnings Powerboat Adventures
- Cop-Out Charters
- Cora Beth
- Coral Cruises
- Coral Divers Limited
- Coral Motor Yachts – Explore Adriatic
- Coral Sea Charters
- Corfu High Seas
- Corto Speedboat
- Costa Di Lusso
- Costa Rica Extreme Fishing – Beach Getaway
- Costa – Catamaran Enjoy
- Cove Charters
- Crab Island & Dolphin Cruises
- Cranks charters
- Cretan Isla Sailing – Dia Island
- Crete Yacht Cruises
- Crete Yacht Cruises
- Crete Yacht Cruises
- Cristal Cranchi 39
- Cristal Sea – Dipol
- Cristal Sea – Jeanneau 9
- Cronulla Reef Charters
- Cross Island Cruises
- Cruise Destin Bay
- Cruise Piva Lake
- Cruise, Chill & Soak Up Paradise!
- CruiseFishDive
- Cruises by: Berger Ops. Fishing®
- Cruises4all Kalymnos
- Cruising Belgrade
- Cruising by Pacific Boat Rentals
- Crunch Time Sport Fishing
- Cruz Control Charters
- Cruz'n AMI
- Cruz'n AMI – Sarasota
- Crystal Cruises L.P
- Crystal Dawn Dolphin and Sunset Cruises
- Crystal Flats Guide Service
- Custom Cat Charters
- Custom Charters
- CycladesAzulSailing
- D.C. OUTDOOR ADVENTURES
- D.I. Reef Monster Sightseeing Charters
- DC Marine Charters and Tours
- DEEP 07 – Fishing & Boat Charters
- DEEP 07 – Fishing & Boat Charters
- DENİZ CAN
- DIN Boat Marbella
- DIRTY DOLLY - Dolphin & Port Tours