| Maverick Construction LLC | Boyce | LA | $0 |
| Max J. Kuney Co. | Spokane | WA | $0 |
| Maxwell Asphalt Inc. | Salt Lake City | UT | Subcontractor |
| Mb Western Construction Co. | Houston | TX | Subcontractor |
| Mcanany Construction Inc. | Shawnee | KS | $0 |
| Mcatee Construction Company | Sterling | CO | $0 |
| Mccarthy Improvement Company | Davenport | IA | Subcontractor |
| Mccormick Construction Co. | Bullhead City | AZ | $0 |
| Mcguire & Hester | Oakland | CA | Subcontractor |
| Mckenna Brothers Paving, Inc. | Anchorage | AK | Subcontractor |
| Mclennan Excavation Inc. | Brookings | OR | $0 |
| M. D. Miller Co. Inc. | Curtis Bay | MD | Subcontractor |
| Meadows Contractors LLC | Jonesboro | AR | $0 |
| M. E. Collins Contracting Co. Inc. | Wahoo | NE | $0 |
| Midmountain Contractors Inc. | Bellevue | WA | $0 |
| Midstate Traffic Control Inc. | Oklahoma City | OK | Subcontractor |
| Midway Construction, Inc. | Roxie | MS | $0 |
| Midwest Infrastructure Inc. | Lincoln | NE | $0 |
| Mig Corporation, Inc. | Acton | MA | $0 |
| Milcon Concrete Inc. | Troy | OH | Subcontractor |
| Miles Resources LLC | Puyallup | WA | Subcontractor |
| Milestone Contractors LP | Indianapolis | IN | $0 |
| Miller Construction Inc. | Windsor | VT | $0 |
| Miller Equipment Company, Inc. | Lancaster | CA | Subcontractor |
| Miller & Miller Inc. | Huntsville | AL | $0 |
| Miller Paving Inc. | Murray | UT | Subcontractor |
| Millstone Weber LLC | Saint Charles | MO | Subcontractor |
| Mississippi Paving And Construction Inc. | Mathiston | MS | $0 |
| M & J Construction Company Of Pinellas County, Inc. | Tarpon Springs | FL | $0 |
| M&J Underground Inc. | Monee | IL | $0 |
| M. L. Houck Construction Co. | Salem | OR | $0 |
| M & M Concrete Inc. | Stockton | IL | $0 |
| M & M Constructors LLC | Fairbanks | AK | Subcontractor |
| M & M Excavating Co. | Gaylord | MI | $0 |
| Montana Lines, Inc. | Great Falls | MT | Subcontractor |
| Montoya Anderson Construction Inc. | Austin | TX | $0 |
| Morais Contractors, Inc. | Ludlow | MA | $0 |
| Morgan Asphalt Inc. | Magna | UT | Subcontractor |
| Morris Asphalt Co. Inc. | Lafayette | NJ | $0 |
| Morris Sealcoat & Trucking, Inc. | Morris | MN | $0 |
| Mountain Constructors, Inc. | Platteville | CO | $0 |
| Mountain States Constructors Inc. | Albuquerque | NM | $0 |
| Mountain States Lighting, LLC | Conifer | CO | $0 |
| M. P. Dory Co. | Columbus | OH | $0 |
| MRT Inc. | Anchorage | AK | Subcontractor |
| Mumford And Miller Concrete, Inc. | Middletown | DE | Subcontractor |
| Myers Associates, Inc. | Scarborough | ME | $0 |
| Myers & Sons Hi-way Safety, Inc. | Chino | CA | $0 |
| Narragansett Improvement Co. | Providence | RI | Subcontractor |
| National Concrete Cutting, Inc. | Council Bluffs | IA | Subcontractor |
| Navi Engineering Group Corp. | Caguas | PR | $0 |
| N.b. Trenchless, Inc. | Colorado Springs | CO | $0 |
| N.b. West Contracting Company | Pacific | MO | Subcontractor |
| Nelcon, Inc. | Kalispell | MT | Subcontractor |
| Nelson And Streeter Construction Company, Inc. | Pine City | NY | $0 |
| Nelson Industrial Services Inc. | Oklahoma City | OK | Subcontractor |
| Nesbitt Contracting Co. Inc. | Tempe | AZ | $0 |
| Nevada Barricade & Sign Co. Inc. | Reno | NV | Subcontractor |
| New England Infrastructure, Incorporated | Hudson | MA | $0 |
| New Line Services Inc. | Poulsbo | WA | Subcontractor |
| Newport Construction Corp. | Nashua | NH | $0 |
| Nielsen Contracting LLC | Kearney | NE | $0 |
| Norris Asphalt Paving Co. Lc | Ottumwa | IA | $0 |
| Norris & Boudreaux Contractors, LLC | Schriever | LA | $0 |
| North American Dust Control LLC | Emmett | ID | $0 |
| Northeast Asphalt Inc. | Greenville | WI | Subcontractor |
| Northern Construction Service, LLC | Palmer | MA | $0 |
| Northern Improvement Company | Fargo | ND | $0 |
| Northern Mountain Constructors Inc. | El Prado | NM | $0 |
| Northstar Materials, Inc. | Bemidji | MN | $0 |
| Northwest Asphalt, Inc. | Issaquah | WA | Subcontractor |
| Northwest Industrial Incorporated | Rapid City | SD | Subcontractor |
| NPW Contracting, Inc. | Denver | CO | Subcontractor |
| Nunes H M & Sons Construction Inc. | Ludlow | MA | $0 |
| Nutter Corporation | Vancouver | WA | Subcontractor |
| Nu-way Construction L Lc | Blue Mound | TX | $0 |
| Obermiller Construction Services Inc. | Harrisonville | MO | $0 |
| O. C. Jones & Sons, Inc. | Berkeley | CA | Subcontractor |
| Ocoy & Sons Equipment | Red Bluff | CA | $0 |
| Oglesby Construction Inc. | Norwalk | OH | $0 |
| Ohio-west Virginia Excavating Co. | Shadyside | OH | $0 |
| Oklahoma Department Of Transportation | Oklahoma City | OK | $0 |
| Oleary Asphalt Inc. | Ijamsville | MD | Subcontractor |
| Olson Construction TRF Inc. | Thief River Falls | MN | $0 |
| Olthoff, Inc. | Lynwood | IL | $0 |
| Omega Contracting LLC | Dallas | TX | $0 |
| Omg Midwest, Inc. | Urbandale | IA | Subcontractor |
| Onslow Grading & Paving, Inc. | Jacksonville | NC | Subcontractor |
| Ontonagon County Road Commission | Ontonagon | MI | $0 |
| Onyx Paving Company, Inc. | Yorba Linda | CA | $0 |
| Opp Construction LLC | Grand Forks | ND | $0 |
| Ortiz Enterprises, Incorporated | Irvine | CA | $0 |
| Otto Meyer Inc. | Greenwood | IN | $0 |
| Overland Corporation | Ardmore | OK | $0 |
| P.a. Landers Inc. | Hanover | MA | Subcontractor |
| Pal General Engineering Inc. | San Diego | CA | Subcontractor |
| Palmetto Corp. Of Conway | Conway | SC | Subcontractor |
| Panhandle Grading & Paving, Inc. | Pensacola | FL | Subcontractor |
| Papich Construction Company, Inc. | Arroyo Grande | CA | Subcontractor |
| Paradigm Construction & Engineering, Inc. | Sapulpa | OK | $0 |
