| Mckeon Door West, Inc. | Huntington Beach | CA | Subcontractor |
| M.d. Fence Company, Inc. | Commerce City | CO | Subcontractor |
| Methods & Materials, Inc. | Chicago | IL | $0 |
| Metro Elevator Company, Inc. | Indianapolis | IN | $0 |
| Metro Fence Co. Inc. | Coraopolis | PA | $0 |
| Metropolitan Fence Co. | Bladensburg | MD | Subcontractor |
| Michael Bellantoni, Inc. | White Plains | NY | $0 |
| Michaels Fence And Supply Of So. Dak., Inc. | Sioux Falls | SD | $0 |
| Michigan Playgrounds, LLC | Pataskala | OH | $0 |
| Mid Atlantic Fountain Design And MFG. Company, Inc. | Baltimore | MD | $0 |
| Middleton Overhead Doors Inc. | Rockdale | IL | $0 |
| Midwest Automatic Fire Sprinkler Co. | Des Moines | IA | Subcontractor |
| Midwest Crane Services LLC | Tulsa | OK | $0 |
| Midwest Fence & Gate Company | Fort Dodge | IA | $0 |
| Midwest Playscapes Inc. | Savage | MN | $0 |
| Mikes Fence Center Inc. | Bend | OR | $0 |
| Miller Contracting & Remodeling, Inc. | Mobile | AL | $0 |
| Miller's Pro-cut Inc. | Grandview | MO | Subcontractor |
| Miracle Pools Inc. | Jacksonville | NC | $0 |
| Mission Paving And Sealing, Inc. | Irwindale | CA | $0 |
| Mission Pools Of Escondido | Escondido | CA | Subcontractor |
| Mitchells Construction Solutions Inc. | Warners | NY | $0 |
| M Michael Elkis Company, Inc. | Greensboro | NC | Subcontractor |
| M & M Insulation Inc. | Oklahoma City | OK | $0 |
| M&M Metals, LLC | Alachua | FL | Subcontractor |
| M & M Services, LLC | Medford | OR | $0 |
| Mobility Lift Solutions, Inc. | Saint Cloud | FL | $0 |
| Mobley Fencing LLC | Kent | OR | $0 |
| Modernfold/styles Inc. | South Hackensack | NJ | Subcontractor |
| Mod Squad, Inc. | Colorado Springs | CO | $0 |
| Monarch Fence LLC | San Antonio | TX | Subcontractor |
| Montgomery Electronics & Communications Services, LLC | Millbrook | AL | $0 |
| Moore Fence Company, Inc. | Perris | CA | $0 |
| Morrison Metalweld Process Corporation | Canfield | OH | $0 |
| Mountain Crane Service LLC | Salt Lake City | UT | Subcontractor |
| Mountain States Fence Company Inc. | Salt Lake City | UT | Subcontractor |
| Mount Pleasant-blythedale S D | Valhalla | NY | $0 |
| MPS, Inc. | Matawan | NJ | $0 |
| Murphy Industrial Coatings, Inc. | Signal Hill | CA | Subcontractor |
| M & W Building Supply Co. Inc. | Canby | OR | $0 |
| Myra L. Ponce, CSR & Associates | Fontana | CA | $0 |
| Nasma Co. For General Trading Ltd. | Baghdad | | Subcontractor |
| National Sealant & Concrete LLC | Crosby | MN | Subcontractor |
| Native Building Solutions Inc. | Jacksonville | FL | Subcontractor |
| Natuna S.R.L. - Societa Benefit | Roma | RM | $0 |
| Nelson Specialties, Inc. | Fallston | MD | Subcontractor |
| Nesma Al-zubair For Trading And General Contracting/ Ltd. | Baghdad | | Subcontractor |
| Net Connection, LLC | Trussville | AL | $0 |
| Netservices LLC | Tulalip | WA | Subcontractor |
| New England Liner Systems, Inc. | Plantsville | CT | $0 |
| New England Sealcoating Co. Inc. | Hingham | MA | $0 |
| Newman Fence Company | Roebuck | SC | $0 |
| Nexgen Crane & Rigging, LLC | Hamilton | MS | Subcontractor |
| Next Generation Window Coverings LLP | San Antonio | TX | Subcontractor |
| Nh Hvac Systems Inc. | Hooksett | NH | Subcontractor |
| Nick Champi Enterprises, Inc. | Hanford | CA | Subcontractor |
| Nieman & Co. Rigging & Crane Services Inc. | Jacksonville | FL | Subcontractor |
| Nor-cal Garage Door LLC | Redding | CA | $0 |
| Northland Door Systems, Inc. | Pr Du Sac | WI | $0 |
| Northwest Cabinet Works, Inc. | Kalispell | MT | $0 |
| Northwest Controls Contractors LLC | Shelton | WA | $0 |
| Northwest Fence Company Inc. | Spokane Valley | WA | Subcontractor |
| Noswett Fencing, Inc. | Richland | NE | $0 |
| Nowlin Fence | Anaheim | CA | $0 |
| Oasis Aviation Services, LLC | Wilmington | OH | Subcontractor |
| Oceania Elevator Company LLC | Tamuning | GU | Subcontractor |
| Odyssey Environmental Services, Inc. | Dauphin | PA | Subcontractor |
| Oetinger Reinigungssysteme Und Technischer Kundendienst GMBH | Schwaikheim | | $0 |
| O Jay Fence Co. Inc. | Birmingham | AL | Subcontractor |
| Old Dominion Firestopping, L.L.C | Midlothian | VA | Subcontractor |
| Olson Fencing, LLC | Altura | MN | $0 |
| Oneill Engineered Systems Inc. | Hartland | WI | $0 |
| On Time Concrete Cutting, LLC | Altoona | IA | Subcontractor |
| Optima Security, Inc. | Fleming Isle | FL | $0 |
| Orbit Movers & Erectors, Inc. | Dayton | OH | Subcontractor |
| Oregon Ranch Fence LLC. | Prineville | OR | Subcontractor |
| Osmose Utilities Services, Inc. | Peachtree City | GA | $0 |
| Outlaw Fencing LLC | Rapid City | SD | Subcontractor |
| Outsiders LLC | Elizabeth | CO | $0 |
| Overhead Door Co. Of Sierra Nevada/reno | Reno | NV | Subcontractor |
| Pacific Coast Cleaning Inc. | El Cajon | CA | Subcontractor |
| Pacific Northwest Infrastructure, Inc. | Wenatchee | WA | Subcontractor |
| Pacific Pebbles Corporation | San Diego | CA | Subcontractor |
| Paddock Construction Co. Inc. | Rock Hill | SC | Subcontractor |
| Palacios Marine & Industrial Coatings Inc. | Port Lavaca | TX | Subcontractor |
| Pamlico Fence Co. L.L.C | Washington | NC | $0 |
| Panhandle Steel Erectors, Inc. | Amarillo | TX | Subcontractor |
| Parallel Contracting Sal | Zalqa | | Subcontractor |
| Park N Shade Of Tucson, Inc. | Marana | AZ | $0 |
| Partitions And Accessories Co. | Mesa | AZ | $0 |
| Pavecon Ltd. | Grand Prairie | TX | Subcontractor |
| Pavement Technology,inc. | Westlake | OH | $0 |
| Paver Plus, Inc. | Downey | CA | Subcontractor |
| Paw Materials, Inc. | Hudson | FL | Subcontractor |
| Paxton/patterson LLC | Alsip | IL | $0 |
| PCC Contracting Inc. | Schenectady | NY | $0 |
| P & C Fence Company, Inc. | Bridgeport | CT | $0 |
| Penhall Co. | Irving | TX | Subcontractor |
| Performance Plus Inc. | Geary | OK | $0 |
| Perry Vinyl Windows & Doors, LLC | Hazard | KY | $0 |
