| CACommonwealth Aluminum Concast | Carson | CA | — | ◇ UNVERIFIED |
| CMConcast Metal Prod Co/adams Twp | Mars | PA | — | ◇ UNVERIFIED |
| CMConcast Metal Prods CO | Mars | PA | — | ◇ UNVERIFIED |
| CMConcast Metal Products CO | Birmingham | OH | — | ◇ UNVERIFIED |
| CCConley Casting Supply Corp. | Warwick | RI | — | ◇ UNVERIFIED |
| CSConnecticut Stamping & Bending | New Britain | CT | — | ◇ UNVERIFIED |
| CMConnelly Mechanical INC. | Springfield | MO | — | ◇ UNVERIFIED |
| CIConsecon INC | Gardena | CA | — | ◇ UNVERIFIED |
| CSConsidine Studios, Incorporated | Lansdale | PA | — | ◇ UNVERIFIED |
| CPConsolidated Precision Products | Port Hueneme | CA | — | ◇ UNVERIFIED |
| CPCorbett-steeves Pattern Works, INC. | Rochester | NY | — | ◇ UNVERIFIED |
| CACore and Main LP | Renton | WA | — | ◇ UNVERIFIED |
| CACornwall Aluminum Fndy | Lebanon | PA | — | ◇ UNVERIFIED |
| CCCountry Cast Products INC | Galena | IL | — | ◇ UNVERIFIED |
| CPCpp - Pomona | Pomona | CA | — | ◇ UNVERIFIED |
| CCCrane Chempharma & Energy CORP. | Marion | NC | — | ◇ UNVERIFIED |
| CICryowest INC | Watsonville | CA | — | ◇ UNVERIFIED |
| CCCtp Corporation Aka Commercial Tube Processing | Indianapolis | IN | — | ◇ UNVERIFIED |
| CDCtp Div Nelson St | Indianapolis | IN | — | ◇ UNVERIFIED |
| CSCtp Sheetmetal | Indianapolis | IN | — | ◇ UNVERIFIED |
| CPCustom Pipe & Coupling CO INC | Woodburn | OR | — | ◇ UNVERIFIED |
| CPCustom Pipe & Coupling Co., INC. | Fresno | CA | — | ◇ UNVERIFIED |
| CPCustom Pipe & Coupling Co., INC. | Lubbock | TX | — | ◇ UNVERIFIED |
| DBDale Brisco INC. | Fowler | CA | — | ◇ UNVERIFIED |
| DBDanville Brass & Aluminum CO | Danville | IL | — | ◇ UNVERIFIED |
| DLDaspit, LLC | Saint Bernard | LA | — | ◇ UNVERIFIED |
| DPDavidson Pipe Supply CO INC | Brooklyn | NY | — | ◇ UNVERIFIED |
| DIDeacon Industrial Supply Co., INC. | Harleysville | PA | — | ◇ UNVERIFIED |
 Decco Castings INC | El Cajon | CA | — | ◇ UNVERIFIED |
| DCDefiance Casting Operations (0320010001) | Defiance | OH | — | ◇ UNVERIFIED |
| DMDel Mar Die Casting CO INC | Gardena | CA | — | ◇ UNVERIFIED |
| DIDenison Industries of California | Denison | TX | — | ◇ UNVERIFIED |
| DTDetroit Tube Products LLC | Detroit | MI | — | ◇ UNVERIFIED |
| DNDistribution Now | Carson | CA | — | ◇ UNVERIFIED |
| DIDiversico Industries, INC. | Minneapolis | MN | — | ◇ UNVERIFIED |
| DMDiversified Machine INC Dba Chassix INC | Howell | MI | — | ◇ UNVERIFIED |
| DMDixie Metal Products LLC | Memphis | TN | — | ◇ UNVERIFIED |
| DADowell Aluminum | North Hollywood | CA | — | ◇ UNVERIFIED |
| DMDs Manufacturing INC | Pine Island | MN | — | ◇ UNVERIFIED |
| DPD-s Pipe & Steel Supply, LLC | Baltimore | MD | — | ◇ UNVERIFIED |
| DPDuco Pipe Manufacturing Facility | Houston | TX | — | ◇ UNVERIFIED |
| DBDuluth Brass Manufacturing INC | Duluth | MN | — | ◇ UNVERIFIED |
| DBDura Bond Coating Incorporated | Mckeesport | PA | — | ◇ UNVERIFIED |
| DMDurand-wayland Machinery INC | Reedley | CA | — | ◇ UNVERIFIED |
| DIDuraslot INC. | Hudson Falls | NY | — | ◇ UNVERIFIED |
| DED&W Envision LLC | Clinton Township | MI | — | ◇ UNVERIFIED |
| DPDynamic Piping Products, LLC | Houston | TX | — | ◇ UNVERIFIED |
| EBEagle Burgmann Ejs | Santee | CA | — | ◇ UNVERIFIED |
| EMEagleware Mfg CO INC | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| EPEastern Products Foundry, Inc. | Phoenix | AZ | — | ◇ UNVERIFIED |
| EBEaston Brass & Aluminum | Easton | MA | — | ◇ UNVERIFIED |
| EFEdelbrock Foundry CORP | San Jacinto | CA | — | ◇ UNVERIFIED |
| EPEdelbrock Permanent Mold LLC | San Jacinto | CA | — | ◇ UNVERIFIED |
| EFEdsco Fasteners | Waterloo | IN | — | ◇ UNVERIFIED |
| EWEh Wachs CO. | Houston | TX | — | ◇ UNVERIFIED |
| EMElectrolurgy Manufacturing INC | Irvine | CA | — | ◇ UNVERIFIED |
| EAElkcast Aluminum | Elkhorn | WI | — | ◇ UNVERIFIED |
| EPElkhart Products Corporation | Westville | OK | — | ◇ UNVERIFIED |
| ECElm Company Incorporated | Indianapolis | IN | — | ◇ UNVERIFIED |
| EIElpro, INC. | Grover Beach | CA | — | ◇ UNVERIFIED |
| EIEmco INC Stamped Prods | Gadsden | AL | — | ◇ UNVERIFIED |
| ESEnergy Steel CORP Dba O'brien Iron Works | Concord | CA | — | ◇ UNVERIFIED |
| ETEnergy Transfer | Carrollton | OH | — | ◇ UNVERIFIED |
| EIEnerpipe INC. | New London | WI | — | ◇ UNVERIFIED |
| EIErin Industries | Walled Lake | MI | — | ◇ UNVERIFIED |
| EEErmico Enterprises, Inc., Dba Ermico | San Francisco | CA | — | ◇ UNVERIFIED |
| EFESA Fabrication LLC | Phoenix | AZ | — | ◇ UNVERIFIED |
| EHEvans Houston CORP | Houston | TX | — | ◇ UNVERIFIED |
 Evans Industries INC. | Syracuse | NY | — | ◇ UNVERIFIED |
| FMFABA Machine Services, LLC | Blacklick | OH | — | ◇ UNVERIFIED |
| FMFABA Machine Services, LLC | Columbus | OH | — | ◇ UNVERIFIED |
| FTFabricated Tube Products | Carrollton | TX | — | ◇ UNVERIFIED |
| FSFahrenheit Services Air Conditioning & Refrigeration inc | Miami | FL | — | ◇ UNVERIFIED |
| FIFansteel INC | North Chicago | IL | — | ◇ UNVERIFIED |
| FIFastest INC | Roseville | MN | — | ◇ UNVERIFIED |
| FIFastest INC | Saint Paul | MN | — | ◇ UNVERIFIED |
| FFFast Fabricator INC Dba Water Works Mfg | Olivehurst | CA | — | ◇ UNVERIFIED |
| FCFederal-mogul CORP | Lagrange | GA | — | ◇ UNVERIFIED |
| FBFelker Brothers CORP | Plover | WI | — | ◇ UNVERIFIED |
| FFFergerson Fire and Fabrication 1767 | Pflugerville | TX | — | ◇ UNVERIFIED |
| FEFerguson Enterprises LLC #2778 | South Holland | IL | — | ◇ UNVERIFIED |
| FFFerguson Facility #3314 | Theodore | AL | — | ◇ UNVERIFIED |
| FFFerguson Fire and Fabrication | Ashland | VA | — | ◇ UNVERIFIED |
| FFFerguson Fire and Fabrication 1760 | Chicopee | MA | — | ◇ UNVERIFIED |
| FFFerguson Fire & Fabrication #0158 | Riviera Beach | FL | — | ◇ UNVERIFIED |
| FFFerguson Fire & Fabrication Facility 0728 | Houston | TX | — | ◇ UNVERIFIED |
| FFFerguson Fire & Fabrication (facility 2567) | Guntersville | AL | — | ◇ UNVERIFIED |
| FFFerguson Fire & Fabrication INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| FFFerguson Fire - Fabrication INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| FIFerguson Industrial - Facility 2047 | Theodore | AL | — | ◇ UNVERIFIED |
| FBFerraro Bros INC | Maspeth | NY | — | ◇ UNVERIFIED |
| FFFick Foundry Company | Tacoma | WA | — | ◇ UNVERIFIED |
| FTFlatlands Threading Co. Inc. | Oklahoma City | OK | — | ◇ UNVERIFIED |
| FTFlatlands Threading Company, INC. | Oklahoma City | OK | — | ◇ UNVERIFIED |
| FCFlour City Bending INC | Becker | MN | — | ◇ UNVERIFIED |
| FCFlour City Bending INC | Big Lake | MN | — | ◇ UNVERIFIED |
| FTFluid Tite Castings LTD | Wadsworth | OH | — | ◇ UNVERIFIED |
| FFFlury Foundry CO | Lancaster | PA | — | ◇ UNVERIFIED |
| FTFontaine Trailer Company | Princeton | KY | — | ◇ UNVERIFIED |
| FFFormer Foundry Aluminum | Los Angeles | CA | — | ◇ UNVERIFIED |
