All Boating Charters
- Jenni's AMI Boat Tours
- Jeronimo Zante Cruises
- Jesse James Charters
- Jessica Dawn – Boca Grande
- Jessie James Charters
- Jet Asia Bali Cruise – Monohull 52
- Jet Asia Bali Cruise – Monohull 65
- Jet Skis (By Sicily Watersports)
- JetService Ibiza – Alchemist
- JetService Ibiza – Apple
- JetService Ibiza – Aspen
- JetService Ibiza – FINI III
- JetService Ibiza – Get Shorty
- JetService Ibiza – La Gata
- JetService Ibiza – Perla
- JetService Ibiza – The New Smile
- JetService Ibiza – Vicky
- JetService Ibiza – Vicky II
- Jetski_Diani Micustom
- Jey Tours – Cayo Arena VIP Experience
- Jig is Up Charters
- Jimmy Rig Charters
- Joey Flats Everglades Eco Tours
- Johnny Quest Party Boat
- Join or Die Tours
- Jordan Sportfishing
- Joselin Company – Little Jade
- Joshua's Amazon Expeditions – Kayak Trips
- Jovi Charters
- Joy Charter Salerno – Jeanneau Sun Odyssey
- Joyce K Fishing Charters
- Joyride Charters
- Juda Sea Tours Island Cruises
- Julian Boat Tours
- Julio Verne Nautica – Grand Soleil 43ft
- July Special 4 Hours $3200 53" Luxury Yacht
- Just A Splash Charters
- Just Add Water Charters LLC
- Just B Cause Charters Inc
- Just Ducky Charters
- Just Fish
- Just Livin The Dream Charters 1 Dolphin Trip
- Just Livin the Dream Charters 2 Dolphin trip
- Just Reel
- Just Right Florida Charters
- Just a toy charter
- K&O
- KATZ Charters
- KAÇAMAKYACHTİNG
- KIGO Charter
- KOKA Charters
- KONSTANTINOS, PELION BOATS
- Kabuki Sailing
- Kalahari Under Canvas
- Kalina Boat Tour Virpazar
- Kalos Cinque Terre Portofino Boat Tour
- Kalòs 5 Terre Portofino Boat Tour
- Kamarina 505 (By Sicily Watersports)
- Kamoauli
- Kamryn Dawson Charters
- Kan Kan Water Tours
- Kanpai Charter Malta
- Kapteiņa Laiva Dāvids
- Karen Ann Charters
- Karibe Sailing & Snorkeling Tours
- Karla Luxury Rib – Ris Marine
- Karma Boat Cruises – Beneteau Oceanis 45
- Karma Boat Cruises – Full Day Coastal Escape
- Karma Boat Cruises – Private Yacht in Lagos
- Karma Charters
- Katerina Boat
- Katerina Sailing
- Katfish Kayak And Fishing Charters
- Katina d.o.o
- Kavelas Tours
- Kawi Voyage – Galaxy 1
- Kayak Green Vision
- Kayak Tour & Salsa Experience: Condado Beach
- Kaštela Nautic – Exclusive Sailing Experience
- Ke Pasa Charter Tour
- Keel N Time Charters
- Keep It Reel Private Charters
- Keepin It Reel Charters
- Keepin’ it Reel Fishing Charters & Tours
- Kefalonia Day Trips – Luxury Cruise to Ithaca
- Kenosha Sunset Cruises
- Kestrel Warrior – Boat Tours
- Kew Speed
- Key Largo Tiki Tours
- Key West Boating Connection
- Key to Sea Tours and Sandbar Party
- Key to the Sea – Private Parasailing Tour
- Key to the Sea – Sea Ray Boat Charter
- Key to the Winds – Marlago
- KeyZ Charters
- Keys Aquatic Adventures
- Keys Boat Tours
- Keys Time Charters, Inc.
- Kilina Company – Bali
- Kilina Company – Leopard 40