| Claddagh Paving Corporation | Fallbrook | CA | Subcontractor |
| Cleanair Image, Inc. | Stockton | CA | $0 |
| C.m. Munden, L.L.C | Virginia Beach | VA | Subcontractor |
| Coastal Erection & Crane, LLC | Saint Rose | LA | $0 |
| Coker Industrial Contractors, Inc. | Yulee | FL | Subcontractor |
| Coldsweep, Inc. | Morgan | UT | Subcontractor |
| Colonial Fence & Guardrail Corp. | Wrentham | MA | Subcontractor |
| Colorado Springs Fence Company, Inc. | Colorado Springs | CO | Subcontractor |
| Comanco Environmental Corp. | Plant City | FL | Subcontractor |
| Commercial Fence, Inc. | Pasadena | TX | Subcontractor |
| Competition Athletic Surfaces, Inc. | Chattanooga | TN | Subcontractor |
| Concrete Coring Co. Inc. | Enon | OH | $0 |
| Concrete Technology Services Mid Atlantic, Inc. | Glenn Dale | MD | Subcontractor |
| Concrete Wall Sawing Co. Inc. | San Lorenzo | CA | $0 |
| Condor, Inc. | El Monte | CA | Subcontractor |
| Construction Technology, Inc. | West Palm Beach | FL | $0 |
| Containment Systems, LLC | Mountain BRK | AL | $0 |
| Contexture, Inc. | Randolph | MA | Subcontractor |
| Contract Dewatering Services, Inc. | Saranac | MI | $0 |
| Contract Drilling & Blasting LLC | Jacksonville | FL | Subcontractor |
| Contracting And Materials, Inc. | Decatur | AL | $0 |
| Controlco Inc. | Saint Louis | MO | $0 |
| Control Fire Protection, Inc. | Bakersfield | CA | Subcontractor |
| Cooks Fence And Iron Co. Inc. | Oklahoma City | OK | $0 |
| Cooper, Phillip D | Deer | AR | $0 |
| Cowlitz Fence Co. | Kelso | WA | $0 |
| Cox Mechanical Contractors, Inc. | Marion | SC | Subcontractor |
| CPS Construction Group Inc. | Cranberry Township | PA | Subcontractor |
| Craig Fencing LLC | Altoona | PA | $0 |
| Crane Rental Service, Inc. | Orange | CA | $0 |
| Crasco & Crasco Construction | Dodson | MT | $0 |
| Creative Concepts Construction Company | Bothell | WA | Subcontractor |
| Creative Courses LLC | Vancouver | WA | $0 |
| Creative Energies LLC | Lander | WY | $0 |
| Cross Diamond Boom Service, Inc. | Charlo | MT | $0 |
| Crouch Recreation, Inc. | Omaha | NE | $0 |
| Crystal Images Inc. | Irving | TX | $0 |
| C & S Fencing, Inc. | Elmwood Park | NJ | $0 |
| Csi Of Md, LLC | Upper Marlboro | MD | $0 |
| CST Mechanical, Inc. | Hampton | VA | Subcontractor |
| Curry Waterproofing & Masonry Restoration Inc. | Rehoboth | MA | Subcontractor |
| Curtin Enterprises, LLC | Bow | NH | $0 |
| Curtis Clean Sweep Inc. | Boise | ID | Subcontractor |
| Custom Overhead Doors Inc. | Alamogordo | NM | $0 |
| Custom Recreation, Inc. | Hendersonvlle | TN | $0 |
| Cut 'N Core | San Diego | CA | $0 |
| Cutright Teresa J | Stow | OH | $0 |
| Cve Demolition Inc. | Fresno | CA | $0 |
| C & W Construction Specialties, Inc. | Ventura | CA | $0 |
| C. Wright & Wright Enterprises, Inc. | Olivehurst | CA | Subcontractor |
| Dakota Playground Inc. | West Fargo | ND | Subcontractor |
| Danfoss Power Solutions (us) Company | Ames | IA | Subcontractor |
| Daniel's Caulking, LLC | South Windsor | CT | Subcontractor |
| Dan-lar Stairway Elevator Service, LLC | Hagerstown | MD | $0 |
| Darryls Lock And Key | Greenville | MS | $0 |
| Dash-door & Closer Service, Inc. | Doral | FL | $0 |
| DC Asphalt Services Inc. | Kapolei | HI | Subcontractor |
| Dean Construction LLC | Cottageville | SC | Subcontractor |
| Dean Contracting, Inc. | Timnath | CO | Subcontractor |
| De Brino Caulking Associates, Inc. | Castleton | NY | Subcontractor |
| Decorative Paving Company | Loveland | OH | Subcontractor |
| Dees-hennessey, Inc. | San Carlos | CA | Subcontractor |
| Delta Specialty Contractors, LLC | West Monroe | LA | $0 |
| Demaranville Installations Inc. | Pleasant Hill | IA | Subcontractor |
| Denali Fenceworks LLC | Delta Junction | AK | Subcontractor |
| D & G Mechanical Insulation, Inc. | Pacific | WA | Subcontractor |
| Diamond Carpets, Inc. | Grand JCT | CO | $0 |
| Diamond - S Polished Concrete, Inc. | Spokane | WA | Subcontractor |
| Dickinson Walter Dean | Salinas | CA | $0 |
| Digging & Rigging II, Inc. | Sparrows Point | MD | $0 |
| Dillon Incorporated | Terre Haute | IN | $0 |
| Diplomat Construction And Demolition, Inc. | West Chester | PA | Subcontractor |
| Diverseid Products Of Florida, LLC | Riverside | MO | Subcontractor |
| DKB Inc. | Pasco | WA | Subcontractor |
| D-K Fence Co. Inc. | Springfield | MI | $0 |
| Doc's Super Vac, Inc. | Fort Collins | CO | $0 |
| D & O Enterprises, Inc. | Cottonwood | AZ | $0 |
| Domar L.L.C. | Warrenton | VA | Subcontractor |
| Door Jockey Inc. | Wall Township | NJ | Subcontractor |
| Door System Design Inc. | Chico | CA | Subcontractor |
| Double Hung, LLC | Greensboro | NC | Subcontractor |
| Dows Equipment Service Inc. | Romulus | MI | $0 |
| D&P Crane Works LLC | Hubert | NC | Subcontractor |
| Dragon Scale Flooring Inc. | Clarksville | MD | $0 |
| Drain-pro Inc. | Puyallup | WA | $0 |
| Drive Products USA, Inc. | Elkhorn | WI | $0 |
| Driver Contractors Inc. | Suffolk | VA | Subcontractor |
| DSR Services, L.L.C | Harrah | OK | $0 |
| DSS Contracting Corp. | Manchester | MD | Subcontractor |
| Dwyer Edward | Rocklin | CA | $0 |
| Dynamic Fire Protection Systems, Inc. | Montrose | CO | $0 |
| Ea Burns Fencing Inc. | Westbrook | ME | $0 |
| Eagle Paving LLC | Poway | CA | Subcontractor |
| Eagle Procurement & Industrial Contractor LLC | La Porte | TX | Subcontractor |
| Eagle Rock Blasting, Inc. | Idaho Falls | ID | Subcontractor |
| Earl Inc. | Negaunee | MI | $0 |
| East Coast Fence & Guardrail Of Brevard, Inc. | Cocoa | FL | Subcontractor |
| East Coast Rigging & Contracting Company, LLC | Laurel | MD | Subcontractor |
| Eastern Door Controls Inc. | Jeannette | PA | $0 |
| Eastern Industrial Services, Inc. | Historic New Castle | DE | Subcontractor |
