| Name | Phone | Category |
| Manatts, Inc. | (515) 278-0247 | Contractor |
| Manpower, Inc. | (515) 288-4105 | Employment |
| MAP Professional Development, Inc. | (515) 490-0604 | Business Services |
| The Maples Condominium Rentals | (515) 554-1785 | Real Estate |
| Marquis Builders | (515) 965-0063 | Contractor |
| Martinizing Dry Cleaning | (515) 964-5371 | Cleaning-Maintenance |
| Massage Heights | (515) 963-2000 | Health & Beauty |
| Maurices #1089 | (515) 964-5250 | Retail-Shops-Stores |
| Max Life Chiropractic Center | (515) 964-9644 | Health Care |
| McCullough Family Dentistry, P.C. | (515) 965-4470 | Dental |
| Mediacom | (515) 697-6620 | Communications |
| Medicallyours | (515) 270-0725 | Health Care |
| Medicap Pharmacy, Inc. | (515) 964-8550 | Health Care |
| Medix Occupational Health | (515) 964-9003 | Health Care |
| Memorial Services of Iowa, Inc. at Ankeny Memorial Gardens | (515) 964-0592 | Funeral Services |
| Mercy North Diagnostic Imaging | (515) 643-7663 | Health Care |
| Mercy North Diagnostic Imaging - Ankeny Diagnostic Center | (515) 643-6200 | Health Care |
| Mercy North Family Practice / Urgent Care | (515) 643-8100 | Health Care |
| Mercy North Pharmacy | (515) 643-7590 | Health Care |
| Merkley Wealth Associates | (515) 457-1286 | Insurance-Finance |
| Merle Norman Cosmetics, Inc. | (515) 963-0628 | Health & Beauty |
| Met Life Home Loans | (515) 289-4190 | |
| Metamorphosis Organic Massage, Inc. | (515) 963-7887 | Health Care |
| Metro Waste Authority | (515) 244-0021 | Environmental |
| Michael R. Sharp, CPA, P.C. | (515) 965-6995 | Finance |
| MidAmerican Energy Company | (515) 281-2260 | Utilities |
| Midwest Mattress | (515) 964-9955 | Retail-Shops-Stores |
| Miller, Noah | (563) 249-2954 | Individual Membership |
| MJ Properties | (515) 262-8830 | Business Services |
| Modern Woodmen of America | (515) 289-4060 | Insurance-Finance |
| Modern Woodmen of America - John Baumhover | (515) 480-2512 | Insurance-Finance |
| Modern Woodmen of America - William Williams | (515) 720-9993 | Insurance-Finance |
| Molly Maid of Ankeny | (515) 964-4111 | Cleaning-Maintenance |
| Monahan Photographic Artist | (515) 963-8119 | Photography |
| Monsanto Company | (515) 963-4200 | Agribusiness |
| The Morale Mechanic | (515) 965-3757 | Travel |
| Mosaic | (515) 246-1840 | Human Services |
| Moss Family Chiropractic, P.C. | (515) 964-9114 | Health Care |
| Mr. Snappy Electric, LLC | (515) 963-2800 | Contractor |
| MSA Professional Services | (515) 964-1920 | Design Services |
| MT Cartridge Refilling | (515) 964-0023 | Computer |
| Mutual of Omaha Bank | (515) 270-1822 | Finance |