Mississippi
| Company | Category | Area | Address | Web | Contact person | |
| MC ALPINE JB CO | Refrigeration Service/repair | Mississippi | PO BOX 53, STRINGER, Jasper, Mississippi, 39481-0053, USA | - | - | J Mc Alpine |
| MC ANALLY INSURANCE | Insurance | Mississippi | 111 MAIN ST, BELMONT, Tishomingo, Mississippi, 38827-9109, USA | - | - | Jerry Mc Anally |
| MC ARTHUR REAL ESTATE | Real Estate | Mississippi | 424 PASS RD, GULFPORT, Harrison, Mississippi, 39507-2904, USA | - | - | - |