| M & M Appraisal | 674.8917 | 1914 Summit | ||
| Mac's Moving & Storage | 674.9602 | 219 Broadway | ||
| Madson Construction | 674.8604 | 738 Monte Vis | ||
| Mae Carter Salon | 672.5021 | 1030 N. Main | ||
| Magnum Services | 673.0660 | 5407 Coffeen | ||
| Malli Don C LLC | 672.2454 | 250 E Ridge | ||
| Mangus Barry B MD | 673.3181 | 1333 W 5th | ||
| Manville Claims Service | 672.8805 | |||
| Marion Day Care Center | 672.5408 | 710 Marion St | ||
| Marshall Gregory M CPA | 674.6609 | 109 S. Main | ||
| Martin Luther Grammar School | 672.2766 | 1325 Burton | ||
| Martini's Auto Detaling | 673.6794 | 409 Broadway | ||
| Martinizing Dry Cleaning | 674.6799 | 1360 Sugarland | ||
| Masonic Temple | 672.2763 | 109 S Gould | ||
| Master Clean | 752.3408 | PO Box 947 | ||
| Maui Beach Tanning Salon | 674.6590 | 556 Broadway | ||
| Maurices Inc | 672.0531 | 316 N. Main | ||
| Maverick Photography | 672.0757 | 20 Coyote | ||
| Maverik County Store #135 | 672.7010 | 1571 N Main | ||
| Maverik County Store #344 | 672.5347 | 1242 E Brundage | ||
| Mayer Thomas O MD | 673.6300 | 1050 Mydland | ||
| MC2 Engineering | 673.7350 | |||
| McChesney Dorin & Associates | 672.3500 | 23 N Scott | ||
| McDonalds Restaurant | 672.5900 | 2590 N Main | ||
| McDonalds Restaurant In Walmart | 672.9629 | 1695 Coffeen | ||
| Meade Creek Seamless | 752.4489 | 470 Park | ||
| Meadow Gold Dairy | 674.8441 | |||
| Medical Arts Lab | 672.1035 | 1333 W 5th | ||
| Meehan Michelle L | 674.9713 | 1465 Burton | ||
| Melanie Araas Design & Photography | 751.4682 | |||
| Melissa's Cottages | 673.4425 | |||
| Memorial Hospital Of Sheridan County | 672.1191 | |||
| Mentock William PE | 674.4224 | 1095 Sugar View | ||
| Metz Beverage Co | 672.5848 | 302 N. Custer | ||
| Microvision Inc | 674.1740 | 6 Widgeon | ||
| Midas Auto Service Experts | 672.6800 | 1080 E Brundage | ||
| Midwest Motor Express | 674.7757 | 2074 Eastside 2nd | ||
| Mike's Electric | 674.7373 | 43 E 5th | ||
| Mill Inn | 672.6401 | 2161 Coffeen | ||
| Mini Mart #165 | 674.8271 | 531 Coffeen | ||
| Minick Realty | 673.1477 | 1949 Sugarland | ||
| Misty Moon Storage | 752.1646 | 211 Canby | ||
| Mitch's Auto Repair | 673.4842 | 370 1/2 Fort Road | ||
| Mitchell Chiropractic | 674.9593 | 212 W. Loucks | ||
| Mitchell Roofing | 673.0150 | 16 Crystal Creek | ||
| Modern Electric Co | 672.2245 | 2007 Val Vista | ||
| Mohatt George W | 674.9222 | 642 Val Vista | ||
| Money Lenders | 673.4781 | 555 N Main | ||
| Monkey House Day Care | 673.0688 | 1856 E. Brundage | ||
| Montana Dakota Utilities Co | 800.638.3278 | |||
| Moore Glass LLC | 673.4364 | 1712 Terra | ||
| Mopsters Inc | 672.9182 | |||
| Morgan Stanley | 672.8991 | 51 Coffeen | ||
| Morin Daniel L DDS MS PC | 672.7108 | 110 S Gould | ||
| Morris Enterprises | 674.8188 | 1279 Skeels | ||
| Morris Music Store & Studio | 673.5793 | 144 S Main | ||
| Morrow Timothy J | 674.4139 | 116 Coffeen Suite 1 | ||
| Morton Buildings Inc | 674.2532 | 2161 Coffeen Suite 402 | ||
| Mossholders Furniture | 674.7192 | 818 Coffeen | ||
| Motel 6 | 673.9500 | 911 Sibley Cir | ||
| Mountain Man Construction | 751.5304 | |||
| Mountain States Mathematics | 675.1009 | 808 Coffeen | ||
| Mountain View Estates | 752.3296 | 69 Decker | ||
| Mountain View Fellowship Baptist Church | 673.4883 | 54 W. 8th Street | ||
| Mountain View Veterinary Hospital | 674.4111 | 510 College Meadows | ||
| Mountain West Electric LLC | 673.0074 | 2564 Heartland | ||
| Mountain West Group LLC | 673.4678 | PO Box 6811 | ||
| Moxey Party Rentals | 751.7430 | |||
| Moxey Schreiber Veterinary Hospital | 672.5533 | 1650 Commercial | ||
| Mr Trash | 674.7240 | 99 Red Fox | ||
| Mullaney Kate LCSW | 672.0469 | 146 W Whitney | ||
| Mullinax Construction Supply | 674.4466 | 615 Fort | ||
| Mullinax Irrigation Co | 674.4466 | 615 Fort | ||
| Mumma Richard L Architect | 674.4201 | 119 N. Main | ||
| Murphy Mark J Attorney | 672.6465 | 142 S. Main | ||
| Music - Leslie Viren | 751.3612 | 730 Harrison | ||
| My Buddy's Place | 672.7652 | 2146 N. Main |