| COCity of Stephenville Landfill | Stephenville | TX | — | ◇ UNVERIFIED |
| CSCives Steel Company | Winchester | VA | — | ◇ UNVERIFIED |
| CSCives Steel Company, Mid-west Division | Wolcott | IN | — | ◇ UNVERIFIED |
| CRClark Rigging & Rental | Lockport | NY | — | ◇ UNVERIFIED |
| CSClearview Structural Steel Souderton Plt | Souderton | PA | — | ◇ UNVERIFIED |
| CWClover Wire Forming | Yonkers | NY | — | ◇ UNVERIFIED |
| CSC&l Steel | Jacksonville | FL | — | ◇ UNVERIFIED |
| CCCmc Coatings | Waxahachie | TX | — | ◇ UNVERIFIED |
| CCCmc Coating Toltec Steel | Kankakee | IL | — | ◇ UNVERIFIED |
| CJCmc Joist & Deck Iowa | Iowa Falls | IA | — | ◇ UNVERIFIED |
| CRCmc Rebar | Nashville | TN | — | ◇ UNVERIFIED |
| CRCmc Rebar-ga-atlanta | Duluth | GA | — | ◇ UNVERIFIED |
| CRCmc Rebar Muncie North | Muncie | IN | — | ◇ UNVERIFIED |
| CRCmc Rebar-oh-cincinnati | Hamilton | OH | — | ◇ UNVERIFIED |
| CRCmc Rebar - Oklahoma City | Oklahoma City | OK | — | ◇ UNVERIFIED |
| CRCmc Rebar - St. Louis | O Fallon | MO | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators (dba Cmc Rebar) | Melissa | TX | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators, INC | Polo | MO | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators INC (dba Cmc Capitol City Steel) | Buda | TX | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators INC Dba Cmc Capitol Steel | Baton Rouge | LA | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators INC (dba Cmc Rebar) | Waxahachie | TX | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators Incdba Cmc Rebar | Houston | TX | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators INC Dba Cmc Rebar Corpus Christi | Corpus Christi | TX | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators INC Dba Cmc Rebar San Antonio | San Antonio | TX | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators INC (dba Cmc Steel Products) | Hope | AR | — | ◇ UNVERIFIED |
| CSCmc Steel Us, LLC Dba Cmc Rebar | Farmersville | TX | — | ◇ UNVERIFIED |
| CSCmc Sterling Steel | Houston | TX | — | ◇ UNVERIFIED |
| CNCmi New Castle Facility | New Castle | PA | — | ◇ UNVERIFIED |
| CICoastal Industrial Fabrication | Theodore | AL | — | ◇ UNVERIFIED |
| CICoast Iron & Steel CO | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| CWCo-line Welding INC | Sully | IA | — | ◇ UNVERIFIED |
| CICollis, INC. | Evansville | IN | — | ◇ UNVERIFIED |
| CICollis Inc-ssw Enterprises | Clinton | IA | — | ◇ UNVERIFIED |
| CSColonial Slitting Industries LLC | Weirton | WV | — | ◇ UNVERIFIED |
| CBColorado Bridge & Iron INC | Fruita | CO | — | ◇ UNVERIFIED |
| CSColumbia Steel INC | Rialto | CA | — | ◇ UNVERIFIED |
| CFCommercial Fabricators | Bridgeview | IL | — | ◇ UNVERIFIED |
| CMCommercial Metals Company | Louisville | KY | — | ◇ UNVERIFIED |
| CMCommercial Metals Company | San Bernardino | CA | — | ◇ UNVERIFIED |
| CMCommercial Metals Company | Nashville | TN | — | ◇ UNVERIFIED |
| CECommscope, Euless Facility | Euless | TX | — | ◇ UNVERIFIED |
| CWConcord Wire Company | Worcester | MA | — | ◇ UNVERIFIED |
| CIConnelly-gpm INC | Chicago | IL | — | ◇ UNVERIFIED |
| CMContainer Management Services | Portland | OR | — | ◇ UNVERIFIED |
| CBContinental Bridge | Alexandria | MN | — | ◇ UNVERIFIED |
| CConxtech | Woodland | CA | — | ◇ UNVERIFIED |
| CIConxtech INC | Hayward | CA | — | ◇ UNVERIFIED |
| CBCooper B-line INC | Sherman | TX | — | ◇ UNVERIFIED |
| CBCooper B-line INC | Troy | IL | — | ◇ UNVERIFIED |
| CSCooper's Steel Fabricators | Shelbyville | TN | — | ◇ UNVERIFIED |
| CCowelco | Long Beach | CA | — | ◇ UNVERIFIED |
| CSCraig Systems Corporation | Amesbury | MA | — | ◇ UNVERIFIED |
| CDCreative Display Panels | Newbury Park | CA | — | ◇ UNVERIFIED |
| CRC & R Sales Inc/dba Kretzschmar Steel | Colton | CA | — | ◇ UNVERIFIED |
| CSCrystal Steel Memphis, LLC | Gallaway | TN | — | ◇ UNVERIFIED |
| CCCst Covers | Conroe | TX | — | ◇ UNVERIFIED |
| CMCustom Metal Fabricators INC | Richmond | VA | — | ◇ UNVERIFIED |
| CFC&w Fabricators | Gardner | MA | — | ◇ UNVERIFIED |
| DSDana Sealing Products, LLC | Milwaukee | WI | — | ◇ UNVERIFIED |
| DADanos and Curole Marine Contractors, LLC | Larose | LA | — | ◇ UNVERIFIED |
| DSDanville Steel | Danville | IL | — | ◇ UNVERIFIED |
| DBDavis Boat Works INC | Newport News | VA | — | ◇ UNVERIFIED |
| DIDavis Iron Works Operations | Hewitt | TX | — | ◇ UNVERIFIED |
| DTDavis Trailer & Truck Equipment | Little Rock | AR | — | ◇ UNVERIFIED |
 Dayton Superior Corporation | Birmingham | AL | — | ◇ UNVERIFIED |
| DGDb Gurney CO | Whitman | MA | — | ◇ UNVERIFIED |
| DUDeacero USA | Houston | TX | — | ◇ UNVERIFIED |
| DWDekoron Wire & Cable INC | Mount Pleasant | TX | — | ◇ UNVERIFIED |
| DSDelta Steel Company INC | Jackson | MS | — | ◇ UNVERIFIED |
| DWDerby Welding and Machine Co., INC. | Louisville | KY | — | ◇ UNVERIFIED |
| DCD-g Custom Chrome LLC | Cincinnati | OH | — | ◇ UNVERIFIED |
| DIDiebold INC | Sumter | SC | — | ◇ UNVERIFIED |
| DDDillon Decanter & Machine INC | Eleanor | WV | — | ◇ UNVERIFIED |
| DSDiversified Steel Fabricators, INC. | Wetumpka | AL | — | ◇ UNVERIFIED |
| D5Division 5, LLC (dba Structural Steel of Carolina) | Hickory | NC | — | ◇ UNVERIFIED |
| DSDixie Southern Industrial INC | Auburndale | FL | — | ◇ UNVERIFIED |
| DJD & J Metal Products, INC. | Memphis | TN | — | ◇ UNVERIFIED |
| DMD Martin Enterprises INC | Chicago Heights | IL | — | ◇ UNVERIFIED |
| DEDoor Engineering & Manufacturing | Kasota | MN | — | ◇ UNVERIFIED |
| DBDs Brown\lewis Engineering Division | Chaska | MN | — | ◇ UNVERIFIED |
| DEDte Electric Company | Detroit | MI | — | ◇ UNVERIFIED |
| DEDynamic Enterprises INC | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| DIDynamic Industries INC | New Iberia | LA | — | ◇ UNVERIFIED |
| DIDynamic Industries INC - Lake Charles Facility | Lake Charles | LA | — | ◇ UNVERIFIED |
 Dynamic Industries - Topside West Yard | New Iberia | LA | — | ◇ UNVERIFIED |
| DODynamic Offshore Contractors INC | New Iberia | LA | — | ◇ UNVERIFIED |
| DWDynamic West Virginia - Site 1 | Morgantown | WV | — | ◇ UNVERIFIED |
| ESEaglespan Steel Structures | Fort Collins | CO | — | ◇ UNVERIFIED |
| ETEagle Tubular Products INC | Alton | IL | — | ◇ UNVERIFIED |
| EWEastern Wire Products Co.(n/a) | Providence | RI | — | ◇ UNVERIFIED |
| EIEastpointe Industries | Muskogee | OK | — | ◇ UNVERIFIED |
| EIEckel Industries Noise Control Technologies | Cambridge | MA | — | ◇ UNVERIFIED |
| EFEdsco Fasteners | Denton | TX | — | ◇ UNVERIFIED |
| EPEga Products INC | Brookfield | WI | — | ◇ UNVERIFIED |
| EHE H Titchener & CO | Binghamton | NY | — | ◇ UNVERIFIED |
| ESElm Solutions CORP | Seattle | WA | — | ◇ UNVERIFIED |
| EMEmats Manufacturing, LLC | Cedar Bluff | VA | — | ◇ UNVERIFIED |
| EFEmerson Fabrication Group LLC | Oneonta | AL | — | ◇ UNVERIFIED |
| EMEmerson Mfg / Dmd Mfg | Pender | NE | — | ◇ UNVERIFIED |
| EFEmmerson Fabrication Group LLC | Oneonta | AL | — | ◇ UNVERIFIED |
