| Accutrack Systems, LLC | Austell | GA | Subcontractor |
| Ace Fence Co. Inc. | Fort Smith | AR | $0 |
| Ace Lightning Protection, Inc. | Murrysville | PA | Subcontractor |
| Acme Door & Hardware Inc. | Greensburg | PA | $0 |
| Acme Fence Company, Inc. | Anchorage | AK | Subcontractor |
| A Complete Flag Source, Inc. | Jackson | MS | $0 |
| A-core Of Boise, Inc. | Boise | ID | Subcontractor |
| A-core Of Idaho, Inc. | Idaho Falls | ID | Subcontractor |
| Acousti Doors & Specialties, LLC | Kennesaw | GA | Subcontractor |
| Acousti Engineering Company Of FloridaPensacola, FL · UEI JZ3UYCKV29Q8 | Pensacola | FL | Subcontractor |
| Acousti Engineering Company Of FloridaAlachua, FL · UEI NQ3ARWBYPCA1 | Alachua | FL | Subcontractor |
| Acousti Engineering Company Of FloridaOrlando, FL · UEI SDEYMJHLWK41 | Orlando | FL | Subcontractor |
| Adams Fence LLC | Phoenix | AZ | Subcontractor |
| A & D Hearing Center, Inc. | Leavenworth | KS | $0 |
| Advanced Concrete Technologies Inc. | Hemet | CA | Subcontractor |
| Advanced Inverter Services Incorporated | Yucaipa | CA | $0 |
| Advanced Medical Builders, Inc. | Anaheim | CA | Subcontractor |
| Advanced Recreational Concepts, LLC | Melbourne | FL | $0 |
| Advanced Technology Group Inc. | Hillsboro | OR | Subcontractor |
| Advanced Water Treatment Inc. | Hinton | WV | $0 |
| Advantage Business Systems LLC | Rochester Hills | MI | $0 |
| Aegis Enterprises, Inc. | Pleasanton | CA | Subcontractor |
| Aerial Services, Inc. | Parsonsburg | MD | Subcontractor |
| Afg Training Technology LLC | Lookout Mountain | GA | $0 |
| Afp Fire Protection LLC | Glendale | AZ | Subcontractor |
| Afsco Fence Supply Company, Inc. | Latham | NY | Subcontractor |
| Ag-con Construction, Inc. | San Jose | CA | $0 |
| Aggregate Technologies Inc. | Houston | TX | Subcontractor |
| A Great Fence, LLC | Port Saint Lucie | FL | Subcontractor |
| A & H Electric Inc. | Wichita | KS | Subcontractor |
| Ahlborn Fence & Steel, Inc. | Santa Rosa | CA | Subcontractor |
| Airflow Pros LLC | Westerville | OH | Subcontractor |
| Akana LLC | Syracuse | UT | Subcontractor |
| Alamo Crane Service, Inc. | Selma | TX | $0 |
| Alberca Construction Company LLC | Hartford | CT | Subcontractor |
| Albuquerque Concrete Coring Company, Inc. | Albuquerque | NM | Subcontractor |
| Alco Fence Co. Inc. | Cheyenne | WY | Subcontractor |
| Alcorn Fence Company | Duarte | CA | Subcontractor |
| Alder Sales Corp. | Salt Lake City | UT | Subcontractor |
| Alii Fire Protection Co. Ltd. | Honolulu | HI | $0 |
| All American Markets, Inc. | Marietta | GA | $0 |
| All American Recycling Inc. | Joliet | IL | $0 |
| All Around Fence Company, Inc. | Uniontown | PA | $0 |
| All Crane Rental Of Georgia Inc. | Austell | GA | Subcontractor |
| Allfence Company LLC | Pennsboro | WV | $0 |
| Alliance Diversified Enterprises, Inc. | Escondido | CA | Subcontractor |
| Allied Builders Inc. | Dayton | OH | Subcontractor |
| Allied Fence Co. Of Dallas | Dallas | TX | $0 |
| All Steel Fence Inc. | Lathrop | CA | $0 |
| Alpine Concrete Cutting And Coring, Inc. | Anchorage | AK | Subcontractor |
| Alpine Fencing & Supplies, Inc. | Delta | CO | $0 |
| Amber Showalter | Wisconsin Dells | WI | $0 |
| American Asphalt South, Inc. | Riverside | CA | $0 |
| American Concrete Company, LLC | Coburg | OR | Subcontractor |
| American Electronic Entertainment, Inc. | Lithia Springs | GA | Subcontractor |
| American Environmental Group Ltd. | Richfield | OH | $0 |
| American Fence Company, LLC | Fairmont | WV | Subcontractor |
| American Fence Co. Of Kearney, Inc. | Kearney | NE | Subcontractor |
| American Imperial Fence Inc. | Ozark | AL | Subcontractor |
| American Sealants, Inc. | Grand Junction | CO | Subcontractor |
| American Sheet Metal Partition Co. | Sacramento | CA | Subcontractor |
| A. Millican Crane Service, Inc. | Poulsbo | WA | Subcontractor |
| Amtec Human Capital, Inc. | Chino Hills | CA | Subcontractor |
| Anchor Safety Systems, LLC | Omaha | NE | Subcontractor |
| Andiemac Waterproofing & Restoration LLC | Fulton | MD | Subcontractor |
| Apache Industrial Services, Inc. | Houston | TX | Subcontractor |
| Applied Engineering, Incorporated | Shady Side | MD | $0 |
| Applied Power Group, LLC | Vienna | VA | $0 |
| A&p Services LLC | Kapolei | HI | $0 |
| Aqua Sentry Of Scottsdale Inc. | Phoenix | AZ | $0 |
| Aquatic Renovation Systems Inc. | Indianapolis | IN | Subcontractor |
| Aquatic Specialty Services, Inc. | Seattle | WA | $0 |
| Architectural Materials, Inc. | Aberdeen | MD | Subcontractor |
| Archoustics LLC | Charlotte | NC | $0 |
| Armstrong Transfer & Storage Co. Inc./ Armstrong Relocation Company | Broken Arrow | OK | $0 |
| Arnold Refrigeration, Inc. | San Antonio | TX | $0 |
| Art Alger, Inc. | San Jose | CA | $0 |
| Artchitecturalcom 2 LLC | San Antonio | TX | $0 |
| Asbestos Analytical Consu | Honolulu | HI | $0 |
| Asheville Contracting Co. Inc. | Candler | NC | $0 |
| Asphalt Solutions Plus LLC | Marshall | MI | $0 |
| Associated Building Wreckers, Inc. | Springfield | MA | Subcontractor |
| Associated Insulation Inc. | Manhattan | KS | $0 |
| Atec Industries Limited | Savage | MD | Subcontractor |
| Atec Shielding LLC | Savage | MD | Subcontractor |
| Atlantic Construction Co. | Louisville | KY | $0 |
| Atlantic Contracting & Specialties, LLC | Franklin | MA | Subcontractor |
| Atlantic Lining Co. Inc. | Mount Holly | NJ | Subcontractor |
| Atlas Residential And Commercial Services, LLC | Branford | CT | Subcontractor |
| Atlas Sales Co. Inc. | Kapolei | HI | Subcontractor |
| Audio Video Innovations, Inc. | El Segundo | CA | $0 |
| Automatic Door Doctors Inc. | Parker | CO | $0 |
| Automatic Door Systems, Inc. | San Carlos | CA | $0 |
| Avadek, Inc. | Webster | TX | Subcontractor |
| Avenue Medical Construction, LLC | New Castle | DE | $0 |
| Av-worx, LLC | West Palm Beach | FL | Subcontractor |
| Axs Solutions LLC | Jacksonville | FL | Subcontractor |
| Bailey Fence Co. Inc. | Hayward | CA | Subcontractor |
| B And D Quality Water, Inc. | Fresno | CA | $0 |
| Barnhart Northeast, Inc. | Lester | PA | Subcontractor |
