All Boating Charters
- Double Ace Charters
- Double Decker Tritoon with Waterslide
- Double Hooker Charters
- Double Trouble Charters
- Douro Charter
- Downtime: Vitamin Sea Tours
- Downtown Tampa Charters
- Dr. George Jones
- Dream Boat tours
- Dream Catcher Company
- Dream Chaser Charters
- Dream On Charters
- Dream Star
- Dreamcatcher Xperience
- Dressel Divers International
- Drift Charters - Regulator 34 (Nonsense)
- Drop 'Em Down Tours
- Dubrovnik Best Offer Speedboat Private Tours
- Dubrovnik Sea Tours
- Dubrovnik Sea View
- Dubrovnik Speedboat Tours
- Dubrovnik by sea
- Duke Sportfishing & Ocean Adventures
- Dupichini
- Dupin S.l. FBC
- E - Sea Mallorca Experience – Eco Catamaran
- E L watersports
- E&J Fishing Charter
- ENJOY CANCUN! – SunDancer 45'
- Eagle Ray
- Earning Stripes
- East Coast Charters – 42'
- East Coast Charters – 43'
- East Coast Charters – 60'
- East Coast Charters – 86'
- East Coast Charters – Pacific 72
- East Cost Explorer – Glass Bottom Boat
- Easy Boat Tour – Kotor
- Easy Does It Charters
- Easy Fix Fun
- Easy Livin Charter
- Easy Livin Charters
- Easy Yacht Charters
- Eco Abrolhos Cruises
- Eco-Discovery Sandbar Adventures
- Edward Teach Charters
- Egayacht luxury tour in the Egadi
- El Capricho 100 ft. - Mega Yacht
- El Diablo Charter
- El Peleador 1
- El Pilar
- El Roi Boat Rental LLC
- Elaphiti Islands – Tailor-Made Boat Tours
- Elimar Tours
- Elysian Charters
- Emerald "C" Fishing Charters
- Emerald Islands Boating LLC
- Emerald Islands Boating LLC – Crab Island
- Emy Experiences Tours
- Encore Water Ways Inc.
- Encore Yacht
- Endless Summer Charters
- Endless Summer Charters
- EnjoSeayacht – Azimuth 68 Plus Bosphorus Tour
- EnjoSeayacht – Luxury Yacht in Istanbul
- Enjoy A Day On Estero Bay!
- Enjoy Tagus
- Enriques Unique Dives
- Entre Cabos
- Epi fiahing
- Epic Adventures – Key West 19'
- Epic Adventures – Ocean Master 33'
- Epic Adventures – Palm Beach 21'
- Epic Boat Trips
- Epic Tails Charters
- Escape to Paradise with Xperience Oasis
- Estibordo Heroico
- Estuary Escapes – Boat Tours
- Eure Ausfluge Vip in Agypten
- Eva Grace
- Event Boat Polaris
- Eventi Da Mare
- Everetts Adventure
- Everglades Fishing Tours
- Everwater Charters & Tours
- Everything But Fish Adventures
- Excellent Charter Sweden AB
- Exclusive Sunset Sailing Experience
- Expedition Tours – Black Moon
- Expedition Tours – Ciprea I
- Expedition Tours – King Mackerel
- Expeditions Northwest
- Explore Dubrovnik
- Explore Naples By Boat
- Explore Santorini on a Private Yacht
- Explore Seychelles by sea
- Exuma Sarah Boyz Tours
- Eye Catcher Charters LLC
- Eyedeal Fishing Charters
- F/V Outta Line, Inc.