All Boating Charters
- DeToni Charter – Eowyn G
- DeToni Charter – Grdelin
- DeToni Charter – Kate
- DeToni Charter – Lady Di
- DeToni Charter – Nada
- DeToni Charter – Piama
- DeToni Charter – Victoria
- Debbie
- Deboto Boats – Quicksilver 675
- Deboto Boats – Quicksilver 755 / Atlantic 750
- Deck & Cheers
- Deep Blue Charters
- Deep Color Excursions
- Deep Sea Charter Punta Cana
- Deep Sea Fishing Charter – Boat Tours
- Deep Sea Fishing – Bénitier Island Tour
- Deep Sea Scuba and Snorkeling
- Deep South Fishing Charters
- Deep blue PG
- Deepblu Sailing – LULU
- Delphi Watersports – Private Boat Ride
- Delta Outfitters
- Delta of Tigre Boat Tour – Capt. Enrique
- Deluxe Boat Charter
- Dempsey Marine Adventures
- Denise Marie Sightseeing
- Destin Crab Island Adventures
- Destin Crab Island Charters
- Destin Dream Yacht
- Destin Dream Yachts – PsyAquatic
- Destin Expeditions: Dolphin/Crab Island Trips
- Destin Family Adventures
- Destin Luxury Charters – Revel
- Destin Private Tiki Lil Kahuna to Crab Island
- Destin Private Yacht
- Destiny Charters
- Detroit River Tour
- Devotion boat tours – 5 Islands Boat Trip
- Dhako Boat Tours
- Dhermi Boat Tours
- DiVA Luxury Experience
- Diamante Blu – Next 22
- Diamante Blu – Saver 750
- Diamond D Yacht – 67' Sunseeker Predator
- Diamond D Yacht – Cranchi 41
- Diamond D Yacht – Sea Ray 52 Sedan
- Diamond Estates and Yachting SL
- Diamond Head Cruises – Snorkel & Whale Watch
- Diamond Jig Charters LLC
- Diamond Sailing Service
- Diamond in the Rough Charters
- Dimokriteio Cruises
- Dinner on a Yacht - the Hudson River
- Dino Yachts Cancun – Doral 48ft
- Dino Yachts Cancun – Flawless 46 & Jetski
- Dino Yachts Cancun – Sea Ray 60ft
- Dirty Dawgs Boat Cruises
- Discover Holbox
- Discover Parguera Boat Charter
- Discover Plavnik On A Pirate Ship
- Discover St.Lucia Tours
- Discover Tamarindo – Jungle Boat Tour
- Discover the Beauty of the Athenian Riviera
- Discovery Agri Tours
- Disney the VIP Yacht
- Dispatch Saltwater Tours
- Ditch Hag Sportfishing Charters
- Divergent Charters
- Divina DaMare Charter & Boat Rental - Aprea
- Divina DaMare Charter & Boat Rental - Jeranto
- Divine Boats
- Divota Boat Rental
- Doha, Cruise and Swim Journey
- Dolce Vita Charters
- Dolin Dive Center – Tobogan Tortuga Boat
- Dolphin & Donuts Cruise
- Dolphin & Morris Island Boat Tours
- Dolphin Dhow Watamu
- Dolphin Discoveries 2 – Hilton Head
- Dolphin Dreams
- Dolphin Escape Charters
- Dolphin Island Tours
- Dolphin Landings Charter Boat – Fantasea
- Dolphin Landings Charter Boats – Phoenix
- Dolphin Landings Charter Boats –Island Hopper
- Dolphin Landings Charter Sailing Yacht –Magic
- Dolphin Navigation Catamaran Cruises
- Dolphin Navigation Catamaran Cruises – L 44
- Dolphin Safari Charters – Vitamin Sea
- Dolphin Watching Boat Tour for Small Groups
- Dolphin Watching with a Marine Biologist
- Dolphin,Manatee Tours. DolfunTours LLC
- Dolphins Marbella
- Dolswim Ltd
- Domestic Six Pack
- Dominican Attitude Excursions
- Domus Salerno Boat Experience
- Don't Panic Charters
- Dorado Adventures Cancun Yacht
- Doriette XI