| M Construction Guam, Inc. | Tumon | GU | Subcontractor |
| Mcteague Construction Co. Inc. | Stuart | FL | $0 |
| M.d Descant, LLC | Bunkie | LA | $0 |
| Md Madison Construction LLC | Richmond | TX | $0 |
| M.d. Mcdonald Construction Company | Brunswick | GA | Subcontractor |
| Meadows Building Corporation | Virginia Beach | VA | Subcontractor |
| Mec Enterprises Of Ocala, LLC | Ocala | FL | Subcontractor |
| Meco Builders Inc. | Chatsworth | GA | $0 |
| Megallie Construction Co. LLC | Lohman | MO | $0 |
| Mega United Corp. Ltd. | Tamuning | GU | $0 |
| Megen Construction Co. Inc. | Cincinnati | OH | Subcontractor |
| Meid LLC | Oneida | NY | $0 |
| Meilbert De Vera Lopez | Yigo | GU | Subcontractor |
| Meisinger Construction Company, Inc. | South Saint Paul | MN | $0 |
| Melton, Ronald | Lebanon | MO | $0 |
| Memorial Park Medical Center, Inc. | Fredericksburg | TX | $0 |
| Menominee Senior Center LLC | Houghton | MI | $0 |
| Merc N Work LLC | Independence | MO | Subcontractor |
| Meridian Construction Corporation | Gilford | NH | $0 |
| Merit Construction Inc. | Knoxville | TN | $0 |
| Merz Construction Inc. | San Diego | CA | $0 |
| Metal Doors & Hardware Co. | La Vista | NE | Subcontractor |
| Metcon, Inc. | Pembroke | NC | $0 |
| Metro Elevator NW, Inc. | Tukwila | WA | $0 |
| Metro Elevator Ny Nj, Inc. | New York | NY | Subcontractor |
| Metrostar Plaza Associates | Iselin | NJ | $0 |
| Meyer Contracting LLC | Fargo | ND | $0 |
| MGM Construction, Inc. | North Salt Lake | UT | $0 |
| M.G.M. Contracting, Inc. | Cocoa | FL | Subcontractor |
| Mh Williams Construction Group, Inc. | Melbourne | FL | Subcontractor |
| Michael Clay Corp. | Winnemucca | NV | $0 |
| Michael Kinder & Sons Inc. | Fort Wayne | IN | $0 |
| Michael Serafini Inc. | Buffalo | NY | $0 |
| Mick Rich Contractors Inc. | Albuquerque | NM | Subcontractor |
| Midatlantic Construction & Design Associates, Inc. | Trenton | NJ | $0 |
| Mid-state Construction Co. Inc. | Livingston | TN | Subcontractor |
| Midwest Drywall Co. Inc. | Wichita | KS | Subcontractor |
| Midwest Fab & Construction, Inc. | Amarillo | TX | $0 |
| Midwest Select Contracting LLC | Minneapolis | MN | $0 |
| Mike's Mechanical Services LLC | Dunkirk | MD | $0 |
| Miko, LLC | Phoenix | AZ | Subcontractor |
| Milam & Co. Construction Inc. | Irondale | AL | $0 |
| Milbach Construction Services Co. | Kaukauna | WI | $0 |
| Milhouse Engineering & Construction, Inc. | Chicago | IL | $0 |
| Mill Brook Building & Remodeling, Inc. | Colchester | VT | $0 |
| Mill City Construction, Inc. | Lincoln | RI | $0 |
| Mill Coatings Inc. | Suamico | WI | $0 |
| Miller Bros. Construction, Inc. | Schuylkill Haven | PA | $0 |
| Mimbela Contractors Inc. | El Paso | TX | Subcontractor |
| Minghinis General Contractors Inc. | Martinsburg | WV | $0 |
| Miron Construction Co. Inc. | Neenah | WI | $0 |
| Mishkov Construction Group LLC | Broken Arrow | OK | Subcontractor |
| Missouri River Contracting, Inc. | Bismarck | ND | $0 |
| Mitchell Development & Investments, LLC | Great Falls | MT | $0 |
| Mji Co. LLC | Phoenix | AZ | $0 |
| M J Settelen Construction LLC | Philadelphia | PA | $0 |
| Ml Construction Inc. | Springville | UT | $0 |
| M & M | Tempe | AZ | $0 |
| M & M Enterprises II Inc. | Chesapeake | VA | $0 |
| Modoc Contracting Company | Klamath Falls | OR | Subcontractor |
| Modular Building Systems, LLC | Roswell | GA | Subcontractor |
| Modular Solutions Inc. | Cumming | GA | Subcontractor |
| Mogadishu Service | Mogadishu | | Subcontractor |
| Mohan Construction, Inc. | Topeka | KS | $0 |
| Moliar Group LLC | Norfolk | VA | $0 |
| Monarc Construction Inc. | Falls Church | VA | $0 |
| Monarch Construction Company | Cincinnati | OH | $0 |
| Monarch Construction LLC | Fallon | NV | $0 |
| Monterey Peninsula Restoration LLC | Castroville | CA | $0 |
| Montgomery Technology Systems, L.L.C. | Greenville | AL | Subcontractor |
| Moore Christian | Acme | PA | Subcontractor |
| Moore-trosper Construction Co. | Holt | MI | $0 |
| Moore United Construction Inc. | Ontario | CA | Subcontractor |
| Moore Ventures LLC | Hemet | CA | $0 |
| Morcon Construction Company, Inc. | Minneapolis | MN | $0 |
| Morgan Construction Management LLC | Philadelphia | PA | $0 |
| Morgan-keller Inc. | Frederick | MD | Subcontractor |
| Mosser Construction Inc. | Fremont | OH | Subcontractor |
| Mountain States Leasing Baker LLC | Kalispell | MT | $0 |
| Mountain Vista Development, Inc. | Las Vegas | NV | $0 |
| M Patterson Services LLC | Hammonton | NJ | $0 |
| MPC Services DC LLC | Arlington | VA | $0 |
| Mp Lawson Construction LLC | Paducah | KY | Subcontractor |
| M. Raina Associates, Inc. | Falls Church | VA | $0 |
| Mr. Grant Contr. Inc. | Harrisville | NY | $0 |
| M S Dansie And Sons Construction Inc. | Riverton | UT | Subcontractor |
| Ms Square Construction, L.L.C. | Phoenix | AZ | $0 |
| MTM33 Inc. | Honolulu | HI | Subcontractor |
| MTM Construction, Inc. | City Of Industry | CA | $0 |
| M To-pros Development Inc. | New York | NY | Subcontractor |
| MTS General Trading & Construction | Erbil | ERBIL | $0 |
| Mt Silvey Interests, LLC | Flower Mound | TX | $0 |
| Multi-phase Contracting Corp. | Altamont | NY | Subcontractor |
| Munsey Contract & Development LLC | Bisbee | AZ | Subcontractor |
| Murphy Construction Company, LLC | Denver | CO | $0 |
| Murray And Sons Construction Company, Inc. | Topeka | KS | $0 |
| Murray Paving & Concrete LLC | Elmwood Park | NJ | Subcontractor |
| Musemburi Abigail | Burnsville | MN | $0 |
| Mv Commercial Construction LLC | Cincinnati | OH | Subcontractor |
| MVP Constructions 55, LLC | Centerville | UT | $0 |
