Businesses
- M3 Industries
- Mad Moose Rentals and Tours
- Mad Pita Express
- Madsen's Printhouse
- MaidPro St. George
- Maids of St. George
- Mail N More
- Main Street Antiques
- Manning Detail & Coatings
- Marlin Plumbing Heating & Air
- Master Plumbing Systems
- Mathnasium of St. George
- Mattress By Appointment
- Mattress Firm
- Mattress Store
- MAX Nutrition
- MAX Nutrition
- Mayhem Ink Custom Screen Printing
- McArthur's Temple View RV Resort
- McMullin Injury Law
- McQuay Architects
- Megaplex Theatres at Pineview
- Megaplex Theatres at Sunset Corner
- MegaPro Screen Printing
- Mehr's Garage Doors