All Fishing Charters
- Misty Blue Charters
- Misty Dawn Charters
- Mitchmo Fishing Charters
- Mitzi B Charters LLC
- Mixed Bag Sportfishing & Offshore Adventures
- Mixed Fishing Charters Punta Cana
- Mixed Metals Outdoors
- Mizu Fishing
- Mo Grouper LLC
- Mobsquad Bowfishing
- Mobsquad Fishing
- Mock1 Guide Service
- Mod Squad Charters
- Moe's Charter
- Mofishin Guide Service
- Mohamed's Fishing Charters
- Mojito Majic - Surfside Charters
- Mojo Charters
- Mojoe Xpeditions – Chokoloskee Fishing
- Mojoe Xpeditions – Flamingo Fishing Charters
- Mojoe Xpeditions – Goodland and 10K Islands
- Moloko charter
- Monarca Fishing Trip
- Monarch Marine
- Monasark Guide Service
- Moneyshot Outfitters
- Mongolian Adventure Outfitters
- Mongoose Striker Fishing Charters
- MonkWorks Fishing
- Monroe Lake Erie Walleyes
- Monster Quest FL
- Monsters Fishing - IT Monster Lake
- Monsters Fishing Guide - Catfishing
- Monsters Fishing Guide - Maldives
- Montauk Charterboat CUJO
- Montauk Fishing – Charterboat Oh Brother
- Montenegro Big Game Tuna Fish
- Montenegro Boat Charter
- Montenegro Boat Tours
- Monty's Ark Adventures
- Montze Fishing And Snorkel Charters
- Moondance Charters Marathon
- Moondog Charters
- Moondog Fishing, LLC
- Moontide Charter Corp.
- Mooondace Charters and TUNA TIME!
- Moore Fishing LLC
- Moorea Evasion
- Moorea Fishing Adventures
- Moorea Sunrise Fishing
- Moover Fishing Adventures
- Moover Fishing Adventures – Back Bay Fishing
- Morgan Rose Deep Sea Fishing
- Morning Strike Guide Service
- Morning Tauk Charters
- Moro Ma Doto – Aluminum 24'
- Moro Ma Doto – Outrigger 26'
- Moro Ma Doto – Outrigger 36'
- Morrell Fishing Adventures – Headwaters Lake
- Morrell Fishing Adventures – Lake Placid/June
- Morris Aquatic Charters
- Mosquito Creek Outfitters
- Mosquito Fleet - 26’ Super Panga
- Mosquito Fleet - Marcela 28’
- Mosquito Fleet - Super Panga 22'
- Mosquito Lagoon Redfish Charters Orlando
- Mossytails Charters
- Most Excellent Fishing – Offshore
- Mother Laguna Adventures
- Mother Ocean Charters – A/C Cabin – Deep Sea
- Mother Ocean Charters – Adventures Your Way
- Motorcity Fishing Madness
- Mott Ridge Charters – Manteo
- Mott Ridge Charters – Swan Quarter
- Motz Outdoor Adventures
- Mow Fish Charter – Nearshore
- Moxon's Guide Service
- Moxon's Guide Service – 22'
- Mozark Fishscapes
- Mr Twister Charters – 30'
- Mr. Fireman's Fishing Charters
- Mr. Perch Fishing Guide
- Mr. Wayne's Guide Service
- MrYaro Fishing Service
- Ms Conduct Sportfishing
- Msc Fishing Charters
- Mtz Adventures
- Muckleroy’s Guide Service
- Muddy Creek Adventures
- Mudslides Charters, LLC
- Mullet Head Charters
- Mullet Run Charters
- Multi species Harsens Island
- Murco Charters – Capt. Cade
- Murco Charters – Captain Cade
- Murky Water Charter – Bay Specialist
- Murray Fishing
- Murrells Inlet Outpost Charters
- Murrells Inlet Outpost Charters
- Murrells Inlet Outpost – Shark