All Boating Charters
- MUTT Tours – Dolphin Trip
- MUTT Tours – East Catamaran
- Maas Fishing and Snorkel Tours
- Maco Yacht – Dufour 410
- Maco Yacht – Lina 7
- Madeira Sunkiss Sailing
- Madoudou Sailing Yacht – Whale Watching
- Mae Boat Charters
- Magic Bowfishing
- Magic Private Boat Tour from Split
- Magnanimous Sportfishing
- Magnetic Island Fishing & Sightseeing Charter
- Maguro Fishing Charters
- Mainsqueeze Jamaica Boat Charters
- Majo V - Stamas 39'
- Makai Charters
- Make A Wake Charters
- Make it a Great Celebration! (RESTROOM)
- Making Memories Charters Key West
- Mako Boat Tours
- Maldives Boat Club
- Mali
- Mallorca Blue Sea
- Mallorca Boating
- Mallorca Llaut Experience – Olimar II
- Malmok Charters Private Boat Tours
- Malta Catamaran Charters - Playtime Catamaran
- Malta Catamaran Charters – Chiquita
- Malta Catamaran Charters – Cicciolina Mia
- Malta Catamaran Charters – Pupa Mia
- Malta Catamaran Charters – Shirina Mia
- Malta Catamaran Charters – Siesta Mia
- Malta Fun Charters
- Malta Gulet Charters
- Malta Isle Charters – Private Luxury Yacht
- Malta Rodos Tours
- Malta Sailing Experiences – Best Boat Tours
- Malta Speedboat Charter
- Malta Speedboat Charter – Julea M
- Malta To Comino Charters
- Mama Anoras Water Sports
- Mana Kayak
- Manatee Sightseeing And Wildlife Boat Tour
- Manatee Sightseeing and Wildlife Adventures
- Manatee Sightseeing and Wildlife Sunset
- Manatee, Dolphin, Bird Tours Near Orlando
- MandaLu Sportfishing
- Mangrove Explorers
- Mangrove Tour
- Manicsportfishing Charters
- Manta
- Manu Dreampoint Snorkeling
- Manu fishing charter
- Mar Brisa
- Maragata Charters
- Marbella Boats Charter – Astondoa 40
- Marbella Boats Charter – Azimut 39
- Marbella Boats Charter – Rodman 1250 Sport
- Marco Island Boat Tours – Boat 1
- Marco Island Boat Tours – Boat 2
- Marco Island Boat Tours – Boat 3
- Marco Reel & Shore Charter
- Mare Nautica
- Mariaboat
- Marieta Sport Fishing
- Marina del Rey 39 Passenger Party Cruiser
- Marinas
- Marine Go
- Mariny Charter Srl
- Mario Rent DOO – Hvar Yachting
- Marionrent DOO
- Maritime Commercial Charters
- Maritime Operations LLC
- Mark Guillot’s Outdoor Adventures
- Marlin My Darlin
- Marosca Boat
- Marrajo fishing charter
- Martha’s Vineyard Charter Company
- Maryann Charters & Tours
- Maréna Boat Tours
- Mas Picudos Charters
- Masheen Charters
- Master Charters
- Mathis trips
- Mautiyak – 32' Boat
- Mautiyak – Trimaran Kayak
- Maxie Sailing Curacao – Private Boat Tours
- Mayhem Sportfishing
- Mclir Srl
- Medulin Excursions – MB Sandra
- Megabite Costa Rica Sport Fishing
- Megacatch – Cris Makei
- Megacatch – Don Bosco
- Megafishing Beach
- Mera Mare Boat Tours
- Mera Mare Boat Tours
- Merluzapr
- Messiah Cruise
- Messiah Cruise – Five East island Tours
- Metamorphosis Boat Charters LLC