All Fishing Charters
- Mainstream Fishing Charters Lake St Clair
- Mainstream Fishing Charters – 20'
- Mainstream Guides - Newaygo
- Mainstream Guides - Wellston
- Majestic Michigan Outfitters
- Majestic Michigan Outfitters
- Majestic Michigan Outfitters
- Majo Fishing Lodge – Bally Hoo I
- Majo Fishing Lodge – Majo V
- Major Look Fishing Charters
- Major Tom Adventures
- Makai Charters
- Makai Sportfishing
- Makaira Cozumel Fishing Charters
- Makaira Fish Company – 24' Yellowfin
- Makaira Fish Company – 33' Sea Hunter
- Makaira Luxury Charters
- Makaira Resort – Sea Dancer Charter
- Makaira Sportfishing
- Makarounas Fishing Trips Rhodes
- Make A Wake – Captiva Island
- Make A Wake – Matlacha
- Make A Wake – Sanibel Island
- Makin Big Bass Memories
- Makin Plans Charters
- Makin' Memories Fishing Charter
- Makin' Waves Fishing Charters
- Makin' Waves Fishing Charters – 28'
- Makina Sportfishing
- Mako 2 Charters
- Mako Sportfishing And Tours – Mako III
- Mako Tours Bonaire
- Malama Charters Hilo LLC
- Maldives Boat Club
- Maldives Liveaboard – 100' Yacht
- Maldives Liveaboard – 112'
- Maldives Liveaboard: Honors Legacy
- Maldives Liveaboard–Motor Yacht 108
- Mali Šjor – Primošten
- Malihini Sportfishing Charters
- Mallard Charters Fishing and Cruises
- Mallard Sportfishing
- Mallorca Llaut Experience
- Malolo Fisher - Fishing Machine
- Malolo Fisher Sports - Xtreme
- Malolo Fisher Sports – Koi Calevu
- Malolo Fisher Sports – Mamanuca Flying Fish
- Malolo Fisher Sports – Zikr
- Maloney's Fishing Guide Service
- Mama Tried Fishing
- Mama Tried Fishing Again
- Mamasita Fishing Charter
- Man Overboard Charters
- Man's Fat Boy Charters
- Manatees in Paradise Scalloping
- Manco Yacht Charters – 85' Bu Mubarak
- MandaLu
- Mandrake Fishing Charters
- Mangrove Coast Charters
- Mangrove Expeditions / Chokoloskee
- Mangrove Explorers
- Mangrove Fishing Tours
- Mangrove Madness
- Mangroveman Charters
- Mangroveman Charters – Sunset Fish
- Mangus 2 Charters
- Manhardt Charters Lake Michigan
- Manic 31 Cabin Bathroom and Mate
- Manic Sportfishing 36ft Triple Motor
- Manic Tritoon 2 WATERSLIDE
- ManicSportfishing CC Bathroom
- Manistee River Fishing Company
- Manistee River Fishing Company
- Manistee River Lodge – Big Manistee
- Manny Tours
- Manolos Guide Service
- Manta
- Manta Adventures – Maheli Heli
- Manta Inn Partners
- Mantarraya I Fishing Charters
- Manu Dreampoint
- Manu Dreampoint – Mack Tuna Trip
- Manu Fishing Charter – Professional On Tour
- Manu fishing charter – Customized
- Manzanillo Luckiest Fishing
- Mapalad Sport Fishing LLC
- Mar Balear Fishing Adventures
- Mar Cabo Fishing
- Mar Vida Adventure
- Mar y chela
- Mar-Lu Sport Fishing Charters
- Maragata Charters Sportfishing
- Maranatha Fishing And Snorkeling
- Maranatha Sport Fishing
- Maras Sportfishing
- Marc Thorpe Walleye and Musky Guide
- March Brown Guide Service LLC
- Marcia B Sportfishing
- Marco Fishing Company
- Marco Fishing Company – Boat 2