| MMMaurice Mesple Dba Mesples Machine Shop and Pump | Fresno | CA | — | ◇ UNVERIFIED |
| MRMaverick Realty LLC | Norman | OK | — | ◇ UNVERIFIED |
| MSMaverick Sheet Metal LLC | Conroe | TX | — | ◇ UNVERIFIED |
| MIMaxanns INC | Greeley | CO | — | ◇ UNVERIFIED |
| MCMaxcam Corporation | White Bear Lake | MN | — | ◇ UNVERIFIED |
| MMaxcor | Marshall | IL | — | ◇ UNVERIFIED |
| MMMaxim Motor Sports | Lake Havasu City | AZ | — | ◇ UNVERIFIED |
| MPMaximus Precison | North Springfield | VT | — | ◇ UNVERIFIED |
| MPMaximus Precison | Springfield | VT | — | ◇ UNVERIFIED |
| MHMaxwell House Cafe | Flat Rock | IL | — | ◇ UNVERIFIED |
| MMMaxx Mfg. Inc. | Prineville | OR | — | ◇ UNVERIFIED |
| MAMayaguez Auto Part | Mayaguez | PR | — | ◇ UNVERIFIED |
| MJMaya Jig Grinding & Gage Co. | Plymouth | MI | — | ◇ UNVERIFIED |
| MMMayfair Metal Spinning | Palatine | IL | — | ◇ UNVERIFIED |
| MEMaynard Equipment INC | Brownsboro | AL | — | ◇ UNVERIFIED |
| MLMaynard Lake Machining LLC | Dassel | MN | — | ◇ UNVERIFIED |
| MEMayoni Enterprises | Pacoima | CA | — | ◇ UNVERIFIED |
| MMMayor's Machine Works, INC. | Sugar Land | TX | — | ◇ UNVERIFIED |
| MSMay Specialty Fabricators, INC. | Register | GA | — | ◇ UNVERIFIED |
| MLMaysteel, LLC | Allenton | WI | — | ◇ UNVERIFIED |
| MSMaysteel Star Precision | Longmont | CO | — | ◇ UNVERIFIED |
 Mayville Engineering Company, INC. | Beaver Dam | WI | — | ◇ UNVERIFIED |
| Mayville Engineering Company INC Dba Mec | Vanderbilt | MI | — | ◇ UNVERIFIED |
| MMMaywood Mart Care | Maywood | IL | — | ◇ UNVERIFIED |
| MGMBAS Group, LLC | Dieterich | IL | — | ◇ UNVERIFIED |
| MAMBH Acres, LLC | Delta | OH | — | ◇ UNVERIFIED |
| MCMbi Construction INC | Chenoa | IL | — | ◇ UNVERIFIED |
| MCMbi Construction INC | Naples | IL | — | ◇ UNVERIFIED |
| MCMbi Construction INC | Effingham | IL | — | ◇ UNVERIFIED |
| MGMbi Global, LLC | Lafayette | LA | — | ◇ UNVERIFIED |
| MIM-b Industries, INC. | Rosman | NC | — | ◇ UNVERIFIED |
| MBM & B Logistics of Il LLC | Carmi | IL | — | ◇ UNVERIFIED |
| MEMbm Enterprises, INC. | Pleasant Plains | AR | — | ◇ UNVERIFIED |
| MSM&b Steel Fabricators, INC. | Orlando | FL | — | ◇ UNVERIFIED |
| MCMbta Charlestown Non-revenue Automotive Garage | Charlestown | MA | — | ◇ UNVERIFIED |
| MMMcadams & Mcadams, INC. D/b/a M & M Welding | Archdale | NC | — | ◇ UNVERIFIED |
| MMMcadoo Machine Company | Kelayres | PA | — | ◇ UNVERIFIED |
| MMMcallen Motor Mart Machine Shop | Mcallen | TX | — | ◇ UNVERIFIED |
| MPMcarthur Park, INC. Dba the Bleacherman | Corinth | NY | — | ◇ UNVERIFIED |
| MLMcBraaten, LLC | Woodstock | CT | — | ◇ UNVERIFIED |
| MRMcbride's Research & Machine, INC. | Sparks | NV | — | ◇ UNVERIFIED |
| MWMcbrides Welding Dba American Iron | Ridgecrest | CA | — | ◇ UNVERIFIED |
| MMMccabe Metal Products INC | Salem | OR | — | ◇ UNVERIFIED |
| MIMcclister INC | Tualatin | OR | — | ◇ UNVERIFIED |
| MLMcClure Land Holdings LLC | Jenison | MI | — | ◇ UNVERIFIED |
| MWMccormick West Constructors LLC | Chicago | IL | — | ◇ UNVERIFIED |
| MSMccorvey Sheet Metal Works LP | Murphy | NC | — | ◇ UNVERIFIED |
| MSMccorvey Sheet Metal Works, L.p. | Orlando | FL | — | ◇ UNVERIFIED |
| MDMC Developers, LLC | Brodhead | WI | — | ◇ UNVERIFIED |
| MHMC&D Holdings, LLC | Addison | IL | — | ◇ UNVERIFIED |
| MDMcdonagh Demolition | Chicago | IL | — | ◇ UNVERIFIED |
| MDMcdonagh Demolition | Villa Park | IL | — | ◇ UNVERIFIED |
| MDMcdonagh Demolition | Dekalb | IL | — | ◇ UNVERIFIED |
| MDMcdonagh Demolition | Glenview | IL | — | ◇ UNVERIFIED |
| MDMcdonagh Demolition INC | Harvey | IL | — | ◇ UNVERIFIED |
| MCMcdonalds CORP | Altamont | IL | — | ◇ UNVERIFIED |
| MMMcdonough Marine Service | Metairie | LA | — | ◇ UNVERIFIED |
| MPMcElheny Precision Machining | Pavilion | NY | — | ◇ UNVERIFIED |
| MMMcelroy Metal Mill INC | Monroe | LA | — | ◇ UNVERIFIED |
| MMMcelroy Metal Mill, INC. | Merkel | TX | — | ◇ UNVERIFIED |
| MMMcelroy Metal Mill, INC. | Peachtree City | GA | — | ◇ UNVERIFIED |
| MMMcelroy Metal Mill INC Dba Mcelroy Metal | Adelanto | CA | — | ◇ UNVERIFIED |
| MLMcewen Lighting Studio | Berkeley | CA | — | ◇ UNVERIFIED |
| MIMcfarlane, INC. | Grand Forks | ND | — | ◇ UNVERIFIED |
| MMMcfarlane Mfg CO | Sauk City | WI | — | ◇ UNVERIFIED |
| MTMcferron Tool and Machine Company | Harrisonville | MO | — | ◇ UNVERIFIED |
| MAMcgill Airflow Corporation | Stockton | CA | — | ◇ UNVERIFIED |
| MMMcgill Maintenance Partnership, Lt | Freeport | TX | — | ◇ UNVERIFIED |
| MMMcgill Mfg | Granby | MO | — | ◇ UNVERIFIED |
| MMMcgregor Manufacturing Company | Ozark | MO | — | ◇ UNVERIFIED |
| MWMcgruder Woodworking | Hume | IL | — | ◇ UNVERIFIED |
| MIMcguire INC. | Gnadenhutten | OH | — | ◇ UNVERIFIED |
| MJMcguire Johns Holdings INC. | Elgin | IL | — | ◇ UNVERIFIED |
| MTMcguire's Touch of Silk LLC | Oklahoma City | OK | — | ◇ UNVERIFIED |
| MGMchenry Gas & Food Mart | Mchenry | IL | — | ◇ UNVERIFIED |
| MQMchenry Quik Shop | Mchenry | IL | — | ◇ UNVERIFIED |
| MMci | Irvine | CA | — | ◇ UNVERIFIED |
| MCMci Concrete Construction | Effingham | IL | — | ◇ UNVERIFIED |
| MLMckc, LLC | Sandwich | IL | — | ◇ UNVERIFIED |
| MHMckee Holdings LLC | Sandy | OR | — | ◇ UNVERIFIED |
| MMMckenney Machine & Tool Company | Corinna | ME | — | ◇ UNVERIFIED |
| MMMckinzey Metal Works, INC. | Lake Charles | LA | — | ◇ UNVERIFIED |
| MSMcmahno Steel CO | Chula Vista | CA | — | ◇ UNVERIFIED |
| MTMcmahon Transport Group LLC | Lockport | IL | — | ◇ UNVERIFIED |
| MIMcmanus Instrument Co., INC. | Village Mills | TX | — | ◇ UNVERIFIED |
| MSMcManus Specialized Sheet Metal Works, Inc. | Milton | NY | — | ◇ UNVERIFIED |
| MFMcm Fabricators, INC. Dba Global Fabricators | Shafter | CA | — | ◇ UNVERIFIED |
| MFMcm Fixture Company, INC Dba Mcm Stainless Fabricating INC | Hazel Park | MI | — | ◇ UNVERIFIED |
| MMMcmillan Machine Co., INC. | Phoenix | AZ | — | ◇ UNVERIFIED |
| MCMcnichols Company | Garland | TX | — | ◇ UNVERIFIED |
| MMMcphee Masonary, INC | Turlock | CA | — | ◇ UNVERIFIED |
| MPM&c Precision Machining INC | Hawthorne | CA | — | ◇ UNVERIFIED |
| MIMcReynolds Investments LLC | Waterford | WI | — | ◇ UNVERIFIED |
| MMMcr Manufactured Component Resource LLC | Isanti | MN | — | ◇ UNVERIFIED |
| MIMcs Industries - New Mexico | Santa Teresa | NM | — | ◇ UNVERIFIED |
| MSMct Sheet Metal | Beaumont | TX | — | ◇ UNVERIFIED |
| MSMct Sheetmetal, INC. | Lafayette | LA | — | ◇ UNVERIFIED |
| MFMcvicker Farms | Energy | IL | — | ◇ UNVERIFIED |
| MSMcwhirter Steel | Lancaster | CA | — | ◇ UNVERIFIED |
| MHMddh Holdings, LLC | Phoenix | AZ | — | ◇ UNVERIFIED |
