| BSBosco Supply & Machine LLC | Spencer | WV | — | ◇ UNVERIFIED |
| BMBos Manufacturing LLC | Manistee | MI | — | ◇ UNVERIFIED |
| BLBoston Lasers Precision Cut, LLC | Amesbury | MA | — | ◇ UNVERIFIED |
| BUBoston University-department of Physics | Boston | MA | — | ◇ UNVERIFIED |
| BCBoundless Construction llc | Collinwood | TN | — | ◇ UNVERIFIED |
| BOB & O Welding & Machine Company, INC. | Brookhaven | MS | — | ◇ UNVERIFIED |
| BTBowman Tool - Machining INC | Rochester | MN | — | ◇ UNVERIFIED |
| BIBoyce Iron & Steel, INC. | Austin | TX | — | ◇ UNVERIFIED |
| BSBoyd Service, INC. | Catlettsburg | KY | — | ◇ UNVERIFIED |
| BMBoyds Machine & Metal Finishing INC. | West Milton | OH | — | ◇ UNVERIFIED |
| BMBoyer Mechanical Services INC | Bemidji | MN | — | ◇ UNVERIFIED |
| BMBoyle Manufacturing | Tulsa | OK | — | ◇ UNVERIFIED |
| BPB & P Fabricating Company | College Park | GA | — | ◇ UNVERIFIED |
| BIBPM Inc. | Henrico | VA | — | ◇ UNVERIFIED |
| BPBP Pollema, LLC | Doon | IA | — | ◇ UNVERIFIED |
| BPB P Precision | Fresno | CA | — | ◇ UNVERIFIED |
| BABps Automated Manufacturing Solutions | Kingston | MA | — | ◇ UNVERIFIED |
| BABps Automated Manufacturing Solutions | Kingston | MA | — | ◇ UNVERIFIED |
| BMBraap Motowerx LLC | Marengo | OH | — | ◇ UNVERIFIED |
| BMBRACKINS MACHINE SHOP,LLC, a Tennessee Limited Liability Company | Erwin | TN | — | ◇ UNVERIFIED |
| BCBrad Carpenter | Warrenville | IL | — | ◇ UNVERIFIED |
| BMBradford Machine, INC. | Bradford | NH | — | ◇ UNVERIFIED |
| BBBradley Brooks | Butler | MO | — | ◇ UNVERIFIED |
| BCBradley CORP | Milwaukee | WI | — | ◇ UNVERIFIED |
| BDBradley & Deborah Schrank Dba Aa Precision Tooling | Blooming Prairie | MN | — | ◇ UNVERIFIED |
| BMBradley Machine & Design, L.l.c. | Chickasha | OK | — | ◇ UNVERIFIED |
| BMBradley Machine INC | Wichita | KS | — | ◇ UNVERIFIED |
| BMBrady Mfg LLC | Yuba City | CA | — | ◇ UNVERIFIED |
| BSBrake Supply Company Downard Underground, INC. | Princeton | WV | — | ◇ UNVERIFIED |
| BMBralco Metals Reliance Steel CORP | La Mirada | CA | — | ◇ UNVERIFIED |
| BIBranch Ironworks, LLC | Alvarado | TX | — | ◇ UNVERIFIED |
| BMBranch Manufacturing Company | North Branch | MN | — | ◇ UNVERIFIED |
| BSBranch Structural Solutions, LLC | Cleburne | TX | — | ◇ UNVERIFIED |
| BIBrandenburg Indus Svc CO at Brillion Ironworks | Brillion | WI | — | ◇ UNVERIFIED |
| BFBrand Fab LLC | Ely | IA | — | ◇ UNVERIFIED |
| BMBrand Manufacturing INC | Princeton | MN | — | ◇ UNVERIFIED |
| BSBraswell Services LLC | New Boston | TX | — | ◇ UNVERIFIED |
| BDBravo Design and Fabrication LLC | Ontario | CA | — | ◇ UNVERIFIED |
| BMBrazosport Machine Works INC | Freeport | TX | — | ◇ UNVERIFIED |
| BSBrazz Specialties, Inc. | Commerce City | CO | — | ◇ UNVERIFIED |
| BCB&R Commercial LLC | Addison | IL | — | ◇ UNVERIFIED |
| BMBreaux Machine Works LP | Tomball | TX | — | ◇ UNVERIFIED |
| BCBreitinger Company | Mansfield | OH | — | ◇ UNVERIFIED |
| BABrent A. Wright | Oakland City | IN | — | ◇ UNVERIFIED |
| BMBretford Mfg INC | Schiller Park | IL | — | ◇ UNVERIFIED |
| BMBrewer Machine and Parts LLC | Central City | KY | — | ◇ UNVERIFIED |
| BLBrewer's Ledge Incorporated | Randolph | MA | — | ◇ UNVERIFIED |
| BLBrian Lin | San Jose | CA | — | ◇ UNVERIFIED |
| BDBridge Deck Solutions LLC | Latrobe | PA | — | ◇ UNVERIFIED |
| BMBridge Machining INC | Columbia Heights | MN | — | ◇ UNVERIFIED |
