| CCColumbus Cabinet Company | Columbus | GA | — | ◇ UNVERIFIED |
| CMColumbus Mckinnon Corporation -- East Chattanooga Facility | Chattanooga | TN | — | ◇ UNVERIFIED |
| CFColville Fish and Wildlife Facility | Coulee Dam | WA | — | ◇ UNVERIFIED |
| CBCommercial Box and Pallet | Escondido | CA | — | ◇ UNVERIFIED |
| CPCommercial Pallet, INC. | Chicago | IL | — | ◇ UNVERIFIED |
| CSCommercial Seating Specialists, INC | San Jose | CA | — | ◇ UNVERIFIED |
| CCCommodore Corporation | Emlenton | PA | — | ◇ UNVERIFIED |
| CPCommonwealth Plywood INC | Whitehall | NY | — | ◇ UNVERIFIED |
| COCommunity of Harbor Bay Isle Owners Association | Alameda | CA | — | ◇ UNVERIFIED |
| CICompanion Industries, INC | Moundridge | KS | — | ◇ UNVERIFIED |
| CCCompass Container Group INC | Oakland | CA | — | ◇ UNVERIFIED |
| CCCompass Container Group INC | Oakland | CA | — | ◇ UNVERIFIED |
| CSCompleat Stair Company, INC. | Kennesaw | GA | — | ◇ UNVERIFIED |
| CGComplete General Construction Company | Columbus | OH | — | ◇ UNVERIFIED |
| CWConcordia Wood Product | Harahan | LA | — | ◇ UNVERIFIED |
| CLConcord Lumber Corporation | Littleton | MA | — | ◇ UNVERIFIED |
| CHCondon Holdings LLC | Howard Lake | MN | — | ◇ UNVERIFIED |
| CJCondon Johnson & Associates | Berkeley | CA | — | ◇ UNVERIFIED |
| CCConifer Canyon Resources LLC | Lyons | OR | — | ◇ UNVERIFIED |
| CLConley Lumber | Nucla, 23.1 Mi Nw of | CO | — | ◇ UNVERIFIED |
| CIConner Industries | Chester | VA | — | ◇ UNVERIFIED |
 Conner Industries, INC. | Fayetteville | TN | — | ◇ UNVERIFIED |
| CWConnolly Wood Products INC | Bend | OR | — | ◇ UNVERIFIED |
| CLConover Lumber Company, INC. | Conover | NC | — | ◇ UNVERIFIED |
| CWConrad Wood Preserving CO | Arbuckle | CA | — | ◇ UNVERIFIED |
| CRCon Robinson Contracting CO INC - Portable Grinder | Lexington | KY | — | ◇ UNVERIFIED |
| CPConsolidated Pallet CO. | Sacramento | CA | — | ◇ UNVERIFIED |
| CPConsolidated Pallet Company | Sacramento | CA | — | ◇ UNVERIFIED |
| CPConsolidated Pine | Prineville | OR | — | ◇ UNVERIFIED |
| CIConstruction Investment Gp Dba Falls Millwork Bldg | Cuyahoga Falls | OH | — | ◇ UNVERIFIED |
| CWConsumers Wood Preserving Company | W Elizabeth | PA | — | ◇ UNVERIFIED |
| CIContainercraft INC | Hutchinson | KS | — | ◇ UNVERIFIED |
| CBCon-tech Building Components, INC. | Moscow Mills | MO | — | ◇ UNVERIFIED |
| CCContemporary Cabinetry & Closet Concepts | Sarasota | FL | — | ◇ UNVERIFIED |
| CCContemporary Cabinets, INC | Edmond | OK | — | ◇ UNVERIFIED |
| CCContemporary Crates LLC | Jersey City | NJ | — | ◇ UNVERIFIED |
| CPContinental Pallets | Fontana | CA | — | ◇ UNVERIFIED |
| CCContra Costa County, General Services Dept | Martinez | CA | — | ◇ UNVERIFIED |
| CLContract Lumber, INC. | Lebanon | OH | — | ◇ UNVERIFIED |
| CMContract Manufacturers of America, Inc. | Oswego | IL | — | ◇ UNVERIFIED |
| CPConway Pallets, LTD | Des Moines | IA | — | ◇ UNVERIFIED |
| CDCook Design Group, Inc. | Eagle | ID | — | ◇ UNVERIFIED |
| CFCooley Forest Products | Heber | AZ | — | ◇ UNVERIFIED |
| CICooley Industries, INC. | Globe | AZ | — | ◇ UNVERIFIED |
| CTCooling Tower Resources INC | Healdsburg | CA | — | ◇ UNVERIFIED |
| CSCoomer & Son Sawmill INC | Frankfort | IN | — | ◇ UNVERIFIED |
| CCCooper Chip Mill | Quinton | AL | — | ◇ UNVERIFIED |
| CCCopper Care Wood Preservatives | Columbus | NE | — | ◇ UNVERIFIED |
| CCCorbett Corbett & Corbett Dba Corbett Package Comp | Wilmington | NC | — | ◇ UNVERIFIED |
| CCCordwin Custom Sawmills, INC | Fairfield | FL | — | ◇ UNVERIFIED |
