| BWBR Welding Inc | Howell | NJ | — | ◇ UNVERIFIED |
| BIBucyrus International INC | Milwaukee | WI | — | ◇ UNVERIFIED |
| BWBuffalo Welding, INC. | Milwaukie | OR | — | ◇ UNVERIFIED |
| BSBunger Steel, Inc. | Tolleson | AZ | — | ◇ UNVERIFIED |
| BPBurrow's Post Frame Supply | Fort Gibson | OK | — | ◇ UNVERIFIED |
| BMButler Manufacturing Company | Visalia | CA | — | ◇ UNVERIFIED |
| BMButler Manufacturing Company | Birmingham | AL | — | ◇ UNVERIFIED |
| BIBW2G Investments LLC | Glenpool | OK | — | ◇ UNVERIFIED |
| CACalifornia All Steel Carports INC | Keizer | OR | — | ◇ UNVERIFIED |
| CPCalifornia Precision Components LLC | Santa Clara | CA | — | ◇ UNVERIFIED |
| CSCal Spray INC | East Palo Alto | CA | — | ◇ UNVERIFIED |
| CSCampell Steel Buildings, Inc. | Lubbock | TX | — | ◇ UNVERIFIED |
| CCapstone | Louisville | KY | — | ◇ UNVERIFIED |
| CSCarport Structures CORP | Oxford | MI | — | ◇ UNVERIFIED |
| CPCavett Portable Buildings | Ponca City | OK | — | ◇ UNVERIFIED |
| CBCeco Building Sys | Rocky Mount | NC | — | ◇ UNVERIFIED |
| CBCeco Building Systems | Mount Pleasant | IA | — | ◇ UNVERIFIED |
| CBCeco Building Systems | Columbus | MS | — | ◇ UNVERIFIED |
 Central Confinement Service LTD | Albion | NE | — | ◇ UNVERIFIED |
| COCentral Oregon Greenhouse Supply LLC | Bend | OR | — | ◇ UNVERIFIED |
| CSCentral States Manufacturing, INC. | Cedar Hill | TX | — | ◇ UNVERIFIED |
| CSCentral Steel Buildings, Inc. | Mount Airy | NC | — | ◇ UNVERIFIED |
| CSCfg Systems INC Dba Concelafab Corporation | Colorado Springs | CO | — | ◇ UNVERIFIED |
| CMCherokee Metal Building Erectors | Marietta | GA | — | ◇ UNVERIFIED |
| CTChicago Tube & Iron | Ankeny | IA | — | ◇ UNVERIFIED |
| CMChickasha Manufacturing | Chickasha | OK | — | ◇ UNVERIFIED |
 Chief Industries INC | Grand Island | NE | — | ◇ UNVERIFIED |
| CSCiti Staff Solutions INC | San Dimas | CA | — | ◇ UNVERIFIED |
| CMClassic Metals Suppliers, Corp. | Palmetto Bay | FL | — | ◇ UNVERIFIED |
| CBClearly Building Corporation | Secor | IL | — | ◇ UNVERIFIED |
| CSCleveland Steel Specialty Company | Bedford | OH | — | ◇ UNVERIFIED |
| CMClosest Meadow Building, INC. | Clovis | NM | — | ◇ UNVERIFIED |
| CBClyde Bergemann Power Group, INC. | Jesup | GA | — | ◇ UNVERIFIED |
| CMCnc Metal Solutions, LLC | Champlin | MN | — | ◇ UNVERIFIED |
| CTCoast to Coast Carports INC | Stanfield | OR | — | ◇ UNVERIFIED |
| CICoatek, INC | Santa Clara | CA | — | ◇ UNVERIFIED |
| CACoco Architectural Grilles & Metalcraft & Advanced Architectural Grilles | Holtsville | NY | — | ◇ UNVERIFIED |
| CTColeman Tommy | Memphis | TN | — | ◇ UNVERIFIED |
| CBCommercial Building Components | Lathrop | CA | — | ◇ UNVERIFIED |
| CMCommercial Metal Plastics and Graphics Inc. | Orlando | FL | — | ◇ UNVERIFIED |
| CMComplete Manufacturing Services, INC. | Magnolia | TX | — | ◇ UNVERIFIED |
| CRContainer Repair Service | Emmaus | PA | — | ◇ UNVERIFIED |
| CCContainment Consultants, INC | Gilroy | CA | — | ◇ UNVERIFIED |
| CEControlled Enviroments, Inc. | Houston | TX | — | ◇ UNVERIFIED |
| CBCorle Bldg Sys Inc/bedford Cnty | Imler | PA | — | ◇ UNVERIFIED |
| CMCrown Metal Buildings | Cabot | AR | — | ◇ UNVERIFIED |
| CBCt Builders | Great Falls | MT | — | ◇ UNVERIFIED |
| CTC & T Building Technologies, LLC | Cypress | TX | — | ◇ UNVERIFIED |
| CMCustom Metal Buildings LLC | Paris | TN | — | ◇ UNVERIFIED |
| CLCvx LLC | Telford | PA | — | ◇ UNVERIFIED |
