All Boating Charters
- Deep Color Excursions
- Deep Sea Fishing
- Deep Sea Scuba and Snorkeling
- Deep blue PG
- DejaVu – Sundancer 46'
- Delta Outfitters
- Destin Dream Yacht
- Destin Private Tiki Lil Kahuna to Crab Island
- Destin Private Yacht
- Detroit river tour
- Diamond Jig Charters LLC
- Discover Plavnik On A Pirate Ship
- Discovery Agri Tours
- Ditch Hag Sportfishing Charters
- Dolce Vita Charters
- Dolphin & Donuts Cruise
- Dolphin Discoveries 1 – Hilton Head
- Dolphin Discoveries 2 – Hilton Head
- Dolphin Discoveries 3 – Hilton Head
- Dolphin Escape Charters
- Dolphin Landings Charter Boats – Phoenix
- Dolphin Landings Charter Boats –Island Hopper
- Dolphin Safari Charters – Vitamin Sea
- Dolphin Tours Cocoa Beach
- Dolphin Tours St Augustine
- Domestic Six Pack
- Dona Nina Fishing Tour
- Dorothy Charters
- Dorothy Marie Tours
- Dos Reyes Roatan Charters
- Double Ace Charters
- Double Decker Tritoon with Waterslide
- Double Hooker Charters
- Downtime: A Vitamin Sea Tour
- Downtown Tampa Charters
- Dream Catcher Company
- Dream On Charters
- Dreamcatcher Xperience
- Dressel Divers International
- Dubrovnik by sea
- Dupin S.l. FBC
- E - Sea Mallorca Experience – Eco Catamaran
- E L watersports
- ENJOY CANCUN! – SunDancer 45'
- Earning Stripes
- East Coast Charters – 42'
- East Coast Charters – 43'
- East Coast Charters – 60'
- East Coast Charters – 86'
- East Coast Charters – Pacific 72
- Easy Boat Tour – Kotor
- Easy Does It Charters
- Easy Fix Fun
- Easy Livin Charter
- Easy Livin Charters
- Eco Abrolhos Cruises
- Eco-Discovery Sandbar Adventures
- El Capricho 100 ft. - Mega Yacht
- El Diablo Charter
- El Pilar
- El peleador 1
- Elimar Tours
- Elysian Charters
- Emerald "C" Fishing Charters
- Encore Water Ways Inc.
- Endless Summer Charters
- Endless Summer Charters
- EnjoSeayacht – Azimuth 68 Plus Bosphorus Tour
- EnjoSeayacht – Luxury Yacht in Istanbul
- Enjoy A Day On Estero Bay!
- Enriques Unique Dives
- Epi fiahing
- Epic Adventures – Key West 19'
- Epic Adventures – Ocean Master 33'
- Epic Adventures – Palm Beach 21'
- Escape to Paradise with Xperience Oasis
- Estibordo Heroico
- Estuary Escapes – Boat Tours
- Eva Grace
- Everetts Adventure
- Everglades Fishing Tours
- Everwater Charters & Tours
- Everything But Fish Adventures
- Exodus Experience
- Expedition Tours – Black Moon
- Expedition Tours – Ciprea I
- Expedition Tours – King Mackerel
- Explore Dubrovnik
- Explore Naples By Boat
- Exuma Sarah Boyz Tours
- Eye Catcher Charters LLC
- Eyedeal Fishing Charters
- F/V Outta Line, Inc.
- FIRE HATT Sportfishing
- FISH ACADIA
- FUNYET Charters
- Falling Tide Adventures
- Family Friendly Charters
- Fascination Maldives
- Fear Knot Charters