| ARArchitectural Rails INC | Panama City | FL | — | ◇ UNVERIFIED |
| ALArcron LLC | Menomonee Falls | WI | — | ◇ UNVERIFIED |
| AIArvin Industries INC | Greenwood | IN | — | ◇ UNVERIFIED |
| AIAsc, INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| ASAshley Steel, INC. | N Charleston | SC | — | ◇ UNVERIFIED |
| AEAsrc Energy Services Alaska INC - Anchorage Fabrication Facility | Anchorage | AK | — | ◇ UNVERIFIED |
| APAssembled Products | Buffalo Grove | IL | — | ◇ UNVERIFIED |
| AIAs-tech Industries INC | Warren | MI | — | ◇ UNVERIFIED |
| AA-tek | Brainerd | MN | — | ◇ UNVERIFIED |
| AMAtlanta Metal Products, INC. | Mableton | GA | — | ◇ UNVERIFIED |
| AIAtlantic Industrial Finishing INC | Creedmoor | NC | — | ◇ UNVERIFIED |
| ACAtlas Copco Hurricane LLC | Franklin | IN | — | ◇ UNVERIFIED |
 Atlas Industrial Holdings, Lle (0125042240) | Columbus | OH | — | ◇ UNVERIFIED |
| ASAtlas Screw and Specialty | New Bedford | MA | — | ◇ UNVERIFIED |
| AMAtomic Machine & Edm INC | Naples | FL | — | ◇ UNVERIFIED |
| ATA+ Trailer and Fabrication INC | Mayo | FL | — | ◇ UNVERIFIED |
| AIAwelco INC | North Attleboro | MA | — | ◇ UNVERIFIED |
| ACAwh Corporation - Lofton Plant | Raphine | VA | — | ◇ UNVERIFIED |
| APAy-mac Precision | Windsor | CO | — | ◇ UNVERIFIED |
| APAzusa Pipe & Tube Bending | Azusa | CA | — | ◇ UNVERIFIED |
| BABabcock and Wilcox Company | West Point | MS | — | ◇ UNVERIFIED |
| BSBae Systems Container Solutions, INC. | Berthoud | CO | — | ◇ UNVERIFIED |
| BBBailey Bridges, INC. | Fort Payne | AL | — | ◇ UNVERIFIED |
| BAB and G Service | Cle Elum | WA | — | ◇ UNVERIFIED |
| BSBanker Steel South Plant | Lynchburg | VA | — | ◇ UNVERIFIED |
| BOBardons & Oliver, INC. | Solon | OH | — | ◇ UNVERIFIED |
| BSBarker Steel LLC | South Windsor | CT | — | ◇ UNVERIFIED |
| BSBarker Steel LLC | South Deerfield | MA | — | ◇ UNVERIFIED |
| BMBarrington Manufacturing | El Dorado Springs | MO | — | ◇ UNVERIFIED |
| BBBartimaeus By Design INC. | Thomasville | NC | — | ◇ UNVERIFIED |
| BLBay LTD | Belle Chasse | LA | — | ◇ UNVERIFIED |
| BLBay LTD - Bay West Yard | Amelia | LA | — | ◇ UNVERIFIED |
| BMBay Mechanical Incorporated | Virginia Beach | VA | — | ◇ UNVERIFIED |
| BOBay Offshore LTD - Bay North Yard | Amelia | LA | — | ◇ UNVERIFIED |
| BSBay Swiss Manufacturing | Dayton | NV | — | ◇ UNVERIFIED |
| BBB & B Pipe & Tool Company | Long Beach | CA | — | ◇ UNVERIFIED |
| BIBc Industries | Oxford | MA | — | ◇ UNVERIFIED |
| BABearcat Anodizing | Goshen | IN | — | ◇ UNVERIFIED |
| BSBeck Steel | Lubbock | TX | — | ◇ UNVERIFIED |
| BSBell Steel INC. | Chandler | AZ | — | ◇ UNVERIFIED |
| BNBenner Nawman INC | Wickenburg | AZ | — | ◇ UNVERIFIED |
| BIBennington Iron Works INC | Bennington | VT | — | ◇ UNVERIFIED |
| BTBent Tube INC | Fowlerville | MI | — | ◇ UNVERIFIED |
| BRBesco Recycling | Bessemer | AL | — | ◇ UNVERIFIED |
| BFB F Shaw INC | Laurens | SC | — | ◇ UNVERIFIED |
| B3Big 3 Precision Prod INC | Centralia | IL | — | ◇ UNVERIFIED |
| BIBig Inch Fabricators & Construction Incorporated | Montezuma | IN | — | ◇ UNVERIFIED |
| BRBig Rivers Electric Kenneth Coleman Power Plant | Hawesville | KY | — | ◇ UNVERIFIED |
| BRBig R Manufacturing LLC | Greeley | CO | — | ◇ UNVERIFIED |
| BRBig R Mfg LLC Dba Big R Bridge | Greeley | CO | — | ◇ UNVERIFIED |
| BMBiltrite Metal Products | Leland | IL | — | ◇ UNVERIFIED |
| BMBirmingham Metal Products INC | Birmingham | OH | — | ◇ UNVERIFIED |
| BJB & J, INC. | Sparks | NV | — | ◇ UNVERIFIED |
| BFBlazer Fabricating LLC Bessemer Plant | Bessemer | AL | — | ◇ UNVERIFIED |
| BLB L Fabricators, INC. | Scottsboro | AL | — | ◇ UNVERIFIED |
| BHBlp Holdings | Houston | TX | — | ◇ UNVERIFIED |
| BGBmc Global, LLC Dba Blissfield Manufacturing | Blissfield | MI | — | ◇ UNVERIFIED |
| BMBmc Metalworks LLC | Columbia | TN | — | ◇ UNVERIFIED |
| BWBobe Water & Fire LLC | Phoenix | AZ | — | ◇ UNVERIFIED |
| BBBob's Barricades | N Fort Myers | FL | — | ◇ UNVERIFIED |
| BTBoley Tool & Machine | East Peoria | IL | — | ◇ UNVERIFIED |
| BTBorgwarner Thermal Systems - Fletcher Plant | Fletcher | NC | — | ◇ UNVERIFIED |
| BRBoston Retail Products | Medford | MA | — | ◇ UNVERIFIED |
| BTBoston Trailer Manufacturing Company | Walpole | MA | — | ◇ UNVERIFIED |
| BSBoulder Steel, INC | Broomfield | CO | — | ◇ UNVERIFIED |
| BWBp Warehouse | Hammond | IN | — | ◇ UNVERIFIED |
| BMBraden Manufacturing | Fort Smith | AR | — | ◇ UNVERIFIED |
| BIBradford Industries | Bradford | IL | — | ◇ UNVERIFIED |
| BCBradley CORP | Germantown | WI | — | ◇ UNVERIFIED |
| BCBratton Corporation | Kansas City | MO | — | ◇ UNVERIFIED |
| BSBreed Steering Sys. INC. | Grabill | IN | — | ◇ UNVERIFIED |
| BABreidert Air Products Dba Soler & Palau Ventilatio | Jacksonville | FL | — | ◇ UNVERIFIED |
| BMBressler Metal Works, INC. | Lebanon | PA | — | ◇ UNVERIFIED |
| BCBridgewater Correctional Complex | Bridgewater | MA | — | ◇ UNVERIFIED |
| BEBrierton Engineering | Abilene | KS | — | ◇ UNVERIFIED |
| BNBright N Ready Signs & Awnings | Englewood | FL | — | ◇ UNVERIFIED |
| BSBristol Steel & Conveyor | Davison | MI | — | ◇ UNVERIFIED |
| BHBroadwind Heavy Industries | Clintonville | WI | — | ◇ UNVERIFIED |
 Brownell Boat Stands | Mattapoisett | MA | — | ◇ UNVERIFIED |
| BRBrown & Root Incorporated Greens Bayou Fabrication Yard | Houston | TX | — | ◇ UNVERIFIED |
| BIBrudi INC Kelso | Kelso | WA | — | ◇ UNVERIFIED |
| BBBrumbaugh Body CO INC | Duncansville | PA | — | ◇ UNVERIFIED |
| BBBrundage Bone Concrete | Kent | WA | — | ◇ UNVERIFIED |
| BIBrunnquell Iron Works INC | South Brunswick Twp | NJ | — | ◇ UNVERIFIED |
| BMBtd Manufacturing INC. | Dawsonville | GA | — | ◇ UNVERIFIED |
| BMBtd Mfg INC | Lakeville | MN | — | ◇ UNVERIFIED |
| BEBuffalo Equipment CO | Columbus | NE | — | ◇ UNVERIFIED |
| BOBuffalo Outfront Metalworks, L.p. | Buffalo | NY | — | ◇ UNVERIFIED |
| BEBuhrt Engineering Incorporated | Warsaw | IN | — | ◇ UNVERIFIED |
| BEBuhrt Engineering, Inc.-treatment Plant #1 | Warsaw | IN | — | ◇ UNVERIFIED |
| BRBull Run Machine and Welding | Knoxville | TN | — | ◇ UNVERIFIED |
| BSBuna Site | Buna | TX | — | ◇ UNVERIFIED |
| BCBundy CORP | Winchester | KY | — | ◇ UNVERIFIED |
| BIBurtman Iron Works | Boston | MA | — | ◇ UNVERIFIED |
| BMBusby Marine and Tank INC | Tacoma | WA | — | ◇ UNVERIFIED |
| CFCado Fabrications INC | Amesbury | MA | — | ◇ UNVERIFIED |
| CICaid Industries INC. | Tucson | AZ | — | ◇ UNVERIFIED |
| CCCajon CO Aurora | Aurora | OH | — | ◇ UNVERIFIED |
| CMCaldwell Manufacturing CO | Kearney | NE | — | ◇ UNVERIFIED |
| CBCallaway Barge Lines INC | Green Cove Springs | FL | — | ◇ UNVERIFIED |
