| BRBear Ridge Machine & Fabrication | Frackville | PA | — | ◇ UNVERIFIED |
| BCBeaumac Company, INC. | Epsom | NH | — | ◇ UNVERIFIED |
| BCBeauty Craft Metal Fabricators | Bedford Heights | OH | — | ◇ UNVERIFIED |
| BIBeckan Industries, Inc. | Kalamazoo | MI | — | ◇ UNVERIFIED |
| BIBeckan Industries, Inc. | Kalamazoo | MI | — | ◇ UNVERIFIED |
| BMBecker Manufacturing & Fab, LLC. | Britton | MI | — | ◇ UNVERIFIED |
| BMBecko Machine Works Fs, LLC | Fort Smith | AR | — | ◇ UNVERIFIED |
| BJBee Jay Iron INC | Englewood | CO | — | ◇ UNVERIFIED |
| BSBegert Stainless, INC. | Marshfield | WI | — | ◇ UNVERIFIED |
| BMBegneaud Manufacturing INC | Scott | LA | — | ◇ UNVERIFIED |
| BMBehlen Manufacturing CO | Goshen | IN | — | ◇ UNVERIFIED |
| BTBehning Tool | Hanover | MA | — | ◇ UNVERIFIED |
| BWBekos Welding INC | Canby | OR | — | ◇ UNVERIFIED |
| BABeks Acquisition INC Dba Bc2 Environmental | Orange | CA | — | ◇ UNVERIFIED |
| BMBel-air Machine & Performance INC | Oregon City | OR | — | ◇ UNVERIFIED |
| BMBelanger Metalworks LLC | Biddeford | ME | — | ◇ UNVERIFIED |
| BPBelden Plastics INC | Saint Paul | MN | — | ◇ UNVERIFIED |
 Benchmark Electronics INC Dba Precision Technologies | Fremont | CA | — | ◇ UNVERIFIED |
| BPBenchmark Precision Products LLC | West Newbury | MA | — | ◇ UNVERIFIED |
| BBBend Bronze INC | Estacada | OR | — | ◇ UNVERIFIED |
| BMBend Machine INC | Bend | OR | — | ◇ UNVERIFIED |
| BLbengines llc | Lagrange | GA | — | ◇ UNVERIFIED |
| BWBenitez Wrought Iron INC | Sylmar | CA | — | ◇ UNVERIFIED |
| BMBenner Metals Corporation | Fullerton | CA | — | ◇ UNVERIFIED |
| BTBennett Tool | Kansas City | KS | — | ◇ UNVERIFIED |
| BTBennett Tool & Die | Kansas City | KS | — | ◇ UNVERIFIED |
| BBentech | Roanoke | VA | — | ◇ UNVERIFIED |
| BIB-equipment, INC. | Ellisville | MS | — | ◇ UNVERIFIED |
| BCBerg Companies | Spokane | WA | — | ◇ UNVERIFIED |
| BBBerger Building Products, INC. | Ivyland | PA | — | ◇ UNVERIFIED |
| BLBerg Ladders INC | University Park | IL | — | ◇ UNVERIFIED |
| BMBerg Manufacturing INC | Santa Clara | CA | — | ◇ UNVERIFIED |
| BDBernard Dalsin Manufacturing | Farmington | MN | — | ◇ UNVERIFIED |
| BHBerone Holdings LLC | Somers | CT | — | ◇ UNVERIFIED |
| BVBerrydale Ventures LLC | Kent | WA | — | ◇ UNVERIFIED |
| BLBerry Leasing, LLC | Dayton | OH | — | ◇ UNVERIFIED |
| BRBert R Huncilman and Son INC | New Albany | IN | — | ◇ UNVERIFIED |
| BFBest Fence Company | Mulberry | FL | — | ◇ UNVERIFIED |
| BIBest Iron Works | San Bernardino | CA | — | ◇ UNVERIFIED |
 Best Ironworks and Screens, INC. | Fort Bliss | TX | — | ◇ UNVERIFIED |
| BMBest Manufacturing, LLC | Cameron Park | CA | — | ◇ UNVERIFIED |
| BQBest Quality Carbide Tooling LLC | El Cajon | CA | — | ◇ UNVERIFIED |
| BTBest Technologies, LLC | Kansas City | MO | — | ◇ UNVERIFIED |
| BFBest-way Fabricating INC | Saint Joseph | MN | — | ◇ UNVERIFIED |
| BEBeta Engineering, INC | Sarcoxie | MO | — | ◇ UNVERIFIED |
| BFBeta Fence USA | Ennis | TX | — | ◇ UNVERIFIED |
| BMBethel Machine & Manufacturing, INC. | Bethel Park | PA | — | ◇ UNVERIFIED |
| BIBethesda Iron Works, INC. | Rockville | MD | — | ◇ UNVERIFIED |
| BGBethlehem Gear & Machine Company, INC. | Wheeling | WV | — | ◇ UNVERIFIED |
| BBBetter Bilt Sheet Metal LLC | San Antonio | TX | — | ◇ UNVERIFIED |
| BMBetter Maintenance Sheet Metal CORP. | Newburyport | MA | — | ◇ UNVERIFIED |
| BMBetty Machine CO INC | Hendersonville | TN | — | ◇ UNVERIFIED |
| BTBevel Tech Group, INC. | Geismar | LA | — | ◇ UNVERIFIED |
| BSBeyond Steel Fabrication, LLC Dba Mission Steel Fabrication | Mentone | CA | — | ◇ UNVERIFIED |
| BFB & F General Machine, INC | Slatington | PA | — | ◇ UNVERIFIED |
| BMBf Machining - Manufacturing INC Dba B-f Custom | Anoka | MN | — | ◇ UNVERIFIED |
| BEBfm Energy Products CORP | Santa Ana | CA | — | ◇ UNVERIFIED |
| BMB&f Model and Pattern, INC. | Milford | CT | — | ◇ UNVERIFIED |
| BMB-g Machine, INC. | Bardstown | KY | — | ◇ UNVERIFIED |
| BMB.g. Metals, INC. | San Antonio | TX | — | ◇ UNVERIFIED |
 BGT Aerospace LLC | Bay City | MI | — | ◇ UNVERIFIED |
| BTBh Tank Works INC Dba Bh Tank INC | Madera | CA | — | ◇ UNVERIFIED |
| BCBig Creek Specialty Plastics LLC | Shepherd | TX | — | ◇ UNVERIFIED |
| BTBiggs Tool & Die, INC | Warminster | PA | — | ◇ UNVERIFIED |
| BMBillet Machine and Fabrication, INC. | Toano | VA | — | ◇ UNVERIFIED |
| BMBiloxi Machine and Metal | Biloxi | MS | — | ◇ UNVERIFIED |
| BIBINGHAM INDUSTRIES Inc. | Terrell | TX | — | ◇ UNVERIFIED |
| BFBio Fab Technologies, INC. | Kenosha | WI | — | ◇ UNVERIFIED |
| BMBirch Manufacturing AZ LLC | Chandler | AZ | — | ◇ UNVERIFIED |
| BMBirdwell Machine LLC | Redmond | WA | — | ◇ UNVERIFIED |
| BMBirdwell Machine LLC Everett | Everett | WA | — | ◇ UNVERIFIED |
| BIBison Iron & Step | Buffalo | NY | — | ◇ UNVERIFIED |
| BHBitemark Holdings, LLC | Aurora | IL | — | ◇ UNVERIFIED |
| BABits and Bites Vending | Derwood | MD | — | ◇ UNVERIFIED |
 Bitterroot Tool & Machine LLC. | Stevensville | MT | — | ◇ UNVERIFIED |
| BMBitzan Machine LLC | Brandon | MN | — | ◇ UNVERIFIED |
| BMBizal Mfg INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| BJB & J Tool Services Inc. | Fenton | MI | — | ◇ UNVERIFIED |
| BAB&k Ables Enterprises, INC. | Show Low | AZ | — | ◇ UNVERIFIED |
| BMBkg Machine & Fabrication, INC. | Victoria | TX | — | ◇ UNVERIFIED |
| BIBK Iron Works Corp | Brooklyn | NY | — | ◇ UNVERIFIED |
| BMBK Metal Sales, Inc. | Rochester | NY | — | ◇ UNVERIFIED |
| BMBk Metal Technologies, LLC | Comstock Park | MI | — | ◇ UNVERIFIED |
| BMBkp Manufacturing INC | Valencia | CA | — | ◇ UNVERIFIED |
| BBBlack Bear Industrial | Rumford | ME | — | ◇ UNVERIFIED |
| BDBlack Diamond Xtreme Engineering INC | Cannon Falls | MN | — | ◇ UNVERIFIED |
| BEBlack Eagle Manufacturing | Hendersonville | NC | — | ◇ UNVERIFIED |
| BMBlackhawk Machine Prod | Smithfield | RI | — | ◇ UNVERIFIED |
| BHBlack Hills Railings LLC | Rapid City | SD | — | ◇ UNVERIFIED |
| BPBlackjack Pipejack Stands, LLC | Pointblank | TX | — | ◇ UNVERIFIED |
| BRBlackland Razors | Santee | CA | — | ◇ UNVERIFIED |
| BRBlackline Racing LLC | Murray | UT | — | ◇ UNVERIFIED |
 Blackman, INC. | New Franken | WI | — | ◇ UNVERIFIED |
| BOBlack Oak Foundry | Ontario | CA | — | ◇ UNVERIFIED |
| BRBlack Rhino Manufacturing Inc. | Amelia | OH | — | ◇ UNVERIFIED |
| BRBlack Rock Venture LLC | Phoenix | AZ | — | ◇ UNVERIFIED |
| BVBlackstone Valley Machining LLC | Mendon | MA | — | ◇ UNVERIFIED |
| BHBlackwell Holdings, LLC | Dover | OH | — | ◇ UNVERIFIED |
| BMBlake Manufacturing LLC | Portsmouth | RI | — | ◇ UNVERIFIED |
| BIBlanda INC | Eagan | MN | — | ◇ UNVERIFIED |
