All Boating Charters
- Comino Blue Lagoon, Gozo & Caves – Lucky Lady
- Comino Blue Lagoon, Gozo & Caves–Atlantis II
- Comino Blue Lagoon, Gozo & SeaCaves Tour
- Comino Charters
- Comino Land Charters
- Comino Vibes – Private Boat Charters
- Comino, Blue Lagoon & Gozo Private Boat Trips
- CominoPlus Boat Charters – Experience Comino
- Commodore Yachting Croatia
- Commodore Yachting Croatia
- Comngetit Charters
- Compass Boat Charters
- Compass Boat Club - Axopar 37 XC
- Compass Boat Club – Berkshire 23 CX Sport
- Conam 600sport
- Conch Queen Charters
- Conch Republic Charters
- Conquistador Fishing Chartes
- Contoy Adventures
- Conwy Leisure Yachts – Sunseeker Predator 82
- CooC
- Cool Change Charters
- Cool Runnings Powerboat Adventures
- Cool Sailing Bcn
- Cop-Out Charters
- Cora Beth
- Coral Cats Sailing Fiji – Wanaka
- Coral Cruises
- Coral Divers Limited
- Coral Motor Yachts – Explore Adriatic
- Coral River Adventures
- Coral Yachting Private Charters Kalymnos
- CoralDreamsSeaAdventure – Muy Caliente Elite
- CoralDreamsSeaAdventure – Tamarindo Premier
- Corfu High Seas
- Cornelia Luxury Cruiser
- Corto Speedboat
- Cost Money Mate Tour (Surf Tours)
- Costa Catch Nosara – La Bonita 29
- Costa Di Lusso
- Costa Rica Adventures Travels
- Costa Rica Extreme Fishing – Beach Getaway
- Costa – Catamaran Enjoy
- Cove Charters
- Cozy Waters "Chill’n by da Shores"
- Crab Island Tiki Boats
- Cranks Charters
- Creole Charters – MIMI Boat
- Cretan Isla Sailing – Dia Island
- Cretan Yachts Sailing Trips – Maryline
- Crete Yacht Cruises - Incredible Too
- Crete Yacht Cruises - Leinti Tea
- Crete Yacht Cruises - Marina S
- Crissi Boat – Lake Como
- Cristal Cranchi 39
- Cristal Sea – Dipol
- Cristal Sea – Jeanneau 9
- Croatia Boat Tours
- Croisieres Turquoise
- Cronulla Reef Charters
- Cross Island Cruises 90 Minute Dolphin Tour
- Cruise Destin Bay
- Cruise Gratitude
- Cruise Ibiza
- Cruise Piva Lake
- Cruise, Chill & Soak Up Paradise!
- CruiseFishDive
- Cruises & Boat Rentals
- Cruises4all Kalymnos
- Cruisin' Tikis – Marathon
- Cruising Belgrade
- Cruising by Pacific Boat Rentals
- Crunch Time Sport Fishing
- Cruz Control Charters
- Cruz'N Chill Private Boat Tours
- Cruz'n AMI
- Cruz'n AMI – LUXURY 30ft
- Crystal Cruises L.P
- Crystal Dawn Dolphin and Sunset Cruises
- Crystal Flats Guide Service
- Crystal blue
- Cubal Adventure – Explore Boca Chica by Boat
- Curate Offshore Fishing
- Custom Cat Charters
- Custom Charters
- Custom Cruises
- Cyclades Charters – Aegean Marvel (8 Pax)
- Cyclades Charters – Grateful (6 Pax)
- CycladesAzulSailing
- Cycladica - Kymatia
- D.C. Outdoor Adventures
- D.I. Reef Monster Sightseeing Charters
- DAVID'S GUARANTEE DOLPHINS!
- DC Marine Charters and Tours
- DC River Cruises
- DEEP 07 – Fishing & Boat Charters
- DEEP 07 – Fishing & Boat Charters
- DELUXE- Fjord 36- ELITE MOTOR YACHT CHARTER
- DELUXE- Lagoon 40- PREMIUM SAILING CATAMARAN
- DELUXE- Leopard 51- LUXURY POWER CATAMARAN