All Boating Charters
- Messiah Charter Srl
- Messiah Cruise
- Messiah Cruise – Five East island Tours
- Messinia Sailing – My Green Life
- Messinia Trips
- Mexico Travel Adventure - Black Fin Boat
- Mexico Travel Adventure: Kalal Panga Boat
- Mexico Whale Shark – Capitan Tony
- Mexidivers
- Mi Sofi Tours – Cabo San Lucas
- Miami Beach Boat Rental Deals – Sea Ray 31
- Miami Beach Boat Rental Deals – Sea Ray 33
- Miami Beach Catamarans, LLC
- Miami Boat Tour, Raccoon Island, Sandbar
- Miami Vice Live Boat Charters
- Michael LR Jackson Tours & Travel
- Michael LR Jackson Tours & Travel
- Michelle Charters
- Michigan Charters
- Middle Bay Fishing Charters
- Midnight Fleet – Midnight Star
- Midos Charter
- Mighty Heron Charters
- Mika Tours Portugal
- Mike Harter LLC
- Mike's Watersports
- Mikula Mali – Antares 760
- Mikula Mali – Sun Odyssey 43
- Mila Majka Cruise Boat
- Miles Escape Charters
- Miller Cruises Pensacola
- Miller Time Tours
- Milos VIP Services
- Milosblu Luxury Cruises
- Milwaukee Boating Tours – Dorado
- Milwaukee Offshore Fishing – Tiara
- Mimi
- Mimosa Jamaica Yacht Charter - 55ft Mimosa
- Mina Boat Tours
- Mini Salt Maine
- Mirabello Boats - Apollon
- Mirabello Boats - Ares
- Mirabello Boats - Athena
- Mirabello Boats - Hera
- Mirabello Boats – Archangel Michael
- Mirabello Boats – Ermis
- Mirabello Boats – Eros
- Mirabello Boats – Ifestos
- Mirabello Boats – Poseidon
- Mirabello Boats – Zeus
- Mirisola Fishing Charters
- Mirissa Water Sports
- Mirse Azul
- Misraab by Merenga
- Miss B Haven
- Miss Emily Charters
- Miss Madison Charter Service LLC
- Miss Oregon Inlet II
- MissBhaven
- Missphitty Charters
- Mitchell Y Tapia SA De CV – Beluga's
- Mitchell Y Tapia SA De CV – Mariah
- Mizu Fishing Lanzarote
- Moana
- Moana Charter – First Yacht 53
- Moana Charter – Little Moana
- Mod Squad Charters
- Molamola Diving Center
- Mollys Boats
- Moloko Charter
- Mona Lisa Cruises Bermuda
- Mongibello
- Montauk Charterboat CUJO
- Montauk Venture Charters
- MonteSail: Cap Camarat 12.5WA
- MonteSail: DeAntonio D36 Open
- MonteSail: Protagon 33 Hard top
- Montenegrina Yacht Rental in Bar
- Montenegro Sailing Kotor
- Montenegro Speedboat
- Montenegro Submarine & Kotor Speed Boat Tours
- Montenegro Waves
- MontenegroGlobe Tours
- Monty Charter Experience
- Moon Sailing – Bavaria 36 Moonstone
- Moonpath Travel and Tours
- Moorea Island Tours
- Moorea Sunrise Fishing
- Moover Fishing Adventures
- Morena 550
- Moreplovac
- Morris Island Tours
- Morska Vila II
- Mosselbay Ggroup Boat Trips
- Mother Ocean Charters – Adventures Your Way
- Motor Boat Rocco
- Mow Fish Charter
- Mpoukas Boat Trips & Rentals
- Mr Pelicano Private Boat Tour
- Mr. Bombastic Yacht Rentals