| ARArchitectural Rails INC | Panama City | FL | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| ALArcron LLC | Menomonee Falls | WI | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| AIAsc, INC. | Tulsa | OK | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| ASAshley Steel, INC. | N Charleston | SC | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| AIAs-tech Industries INC | Warren | MI | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| ACAtlas Copco Hurricane LLC | Franklin | IN | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
 Atlas Industrial Holdings, Lle (0125042240) | Columbus | OH | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| APAy-mac Precision | Windsor | CO | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BABabcock and Wilcox Company | West Point | MS | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BBBailey Bridges, INC. | Fort Payne | AL | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BSBanker Steel South Plant | Lynchburg | VA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BSBarker Steel LLC | South Deerfield | MA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BSBarker Steel LLC | South Windsor | CT | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BLBay LTD | Belle Chasse | LA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BLBay LTD - Bay West Yard | Amelia | LA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BOBay Offshore LTD - Bay North Yard | Amelia | LA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BIBennington Iron Works INC | Bennington | VT | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BRBig Rivers Electric Kenneth Coleman Power Plant | Hawesville | KY | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BRBig R Manufacturing LLC | Greeley | CO | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BRBig R Mfg LLC Dba Big R Bridge | Greeley | CO | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BFBlazer Fabricating LLC Bessemer Plant | Bessemer | AL | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BMBmc Metalworks LLC | Columbia | TN | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BMBraden Manufacturing | Fort Smith | AR | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BCBratton Corporation | Kansas City | MO | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BSBreed Steering Sys. INC. | Grabill | IN | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BMBressler Metal Works, INC. | Lebanon | PA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BSBristol Steel & Conveyor | Davison | MI | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BHBroadwind Heavy Industries | Clintonville | WI | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
 Brownell Boat Stands | Mattapoisett | MA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BRBrown & Root Incorporated Greens Bayou Fabrication Yard | Houston | TX | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BIBrunnquell Iron Works INC | South Brunswick Twp | NJ | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BEBuffalo Equipment CO | Columbus | NE | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BEBuhrt Engineering Incorporated | Warsaw | IN | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CMCaldwell Manufacturing CO | Kearney | NE | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CBCallaway Barge Lines INC | Green Cove Springs | FL | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CBCameron Bridge Works LLC | Elmira | NY | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CFCannon Fabrication INC | Corona | CA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CFCardinal Fab-williamston | Williamston | MI | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CCCareys Construction Company INC | Jackson | MS | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CFCarswell Firman L Mfg CO INC | Kansas City | KS | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CCCatalina Composites | Garden Grove | CA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CICaterpillar INC Seals Metalcasting Facility | Toccoa | GA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CPCaterpillar Paving Products INC | New Ulm | MN | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CBCavo Build Design | Gloucester City | NJ | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CGCcc Group | San Antonio | TX | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CCC & C Fabrication, LLC | Lanett | AL | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CCC & C Iron Incorporated | Merrillville | IN | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CDCed Dba 3e | Des Moines | IA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CDCentral Denver Iron Works, INC | Denver | CO | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CFCentral Florida Custom Trailers, INC. | Orlando | FL | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
