| AIAztec Industries, INC. | Humble | TX | — | ◇ UNVERIFIED |
| AOAztlan Ornamental Iron Fab | Stockton | CA | — | ◇ UNVERIFIED |
| BABaader and Johnson Equipment | Kansas City | KS | — | ◇ UNVERIFIED |
| BIBachiller Iron Works, INC. | Miami | FL | — | ◇ UNVERIFIED |
| BEBaco Enterprises, Inc. | Bronx | NY | — | ◇ UNVERIFIED |
| BCBadlands Capital Holdings LLC | Springtown | TX | — | ◇ UNVERIFIED |
| BIBakker's Ironworks INC. | Phoenix | AZ | — | ◇ UNVERIFIED |
| BIBalco INC. | Oklahoma City | OK | — | ◇ UNVERIFIED |
| BCBaldwin Custom Welding & Designs LLC | Bend | OR | — | ◇ UNVERIFIED |
| BCBaldwin Custom Welding & Designs LLC | Bend | OR | — | ◇ UNVERIFIED |
| BCBaltimore City Dept. of Housing | Baltimore | MD | — | ◇ UNVERIFIED |
 Baltimore Fabrication, LLC | Baltimore | MD | — | ◇ UNVERIFIED |
| BSBaltimore Steel Erectors LLC | White Marsh | MD | — | ◇ UNVERIFIED |
| BSBambacigno Steel Company INC | Modesto | CA | — | ◇ UNVERIFIED |
| BGBanker Grating, LLC | Milwaukee | WI | — | ◇ UNVERIFIED |
| BMBanks Manufacturing Company | Grafton | OH | — | ◇ UNVERIFIED |
| BIBanner Industries -windsor | Windsor | CT | — | ◇ UNVERIFIED |
| BIBanta's Iron Work INC. | Andover | NJ | — | ◇ UNVERIFIED |
| BMBapko Metal INC | Orange | CA | — | ◇ UNVERIFIED |
| BMBapko Metal INC | Lakeside | CA | — | ◇ UNVERIFIED |
| BMBapko Metal INC | Orange | CA | — | ◇ UNVERIFIED |
| BABarbara Adams | Jessup | MD | — | ◇ UNVERIFIED |
| BIBarca Iron Work | Los Angeles | CA | — | ◇ UNVERIFIED |
| BSBare Steel INC | Santee | CA | — | ◇ UNVERIFIED |
| BSBarker Steel, LLC | Milford | MA | — | ◇ UNVERIFIED |
| BWBarndt's Welding, INC. | Cotati | CA | — | ◇ UNVERIFIED |
| BABarnett Aldon Ironworks | Albuquerque | NM | — | ◇ UNVERIFIED |
| BSBarnett Steel Fabrication, LLC | Irondale | AL | — | ◇ UNVERIFIED |
| BSBarnett Steel Fabrication, LLC | Murfreesboro | TN | — | ◇ UNVERIFIED |
| BSBarro Structural Steel | Ceres | CA | — | ◇ UNVERIFIED |
| BTBar T Equipment Service, INC. | Phoenix | AZ | — | ◇ UNVERIFIED |
| BLBarton Leasing, INC. | Aurora | CO | — | ◇ UNVERIFIED |
 Basden Steel-oklahoma, LLC | Claremore | OK | — | ◇ UNVERIFIED |
| BSBase Specialties INC | Farmington | MN | — | ◇ UNVERIFIED |
| BSBA Steel LLC | Baltimore | MD | — | ◇ UNVERIFIED |
| BMBattle Mfg CORP. | San Jose | CA | — | ◇ UNVERIFIED |
| BIBauer Industries LLC Dba Bauer Custom Welding | Saint Paul | MN | — | ◇ UNVERIFIED |
| BWBauer Welding & Metal Fabricators | Saint Paul | MN | — | ◇ UNVERIFIED |
| BIBawco Industrial INC. | Pearland | TX | — | ◇ UNVERIFIED |
| BBBax-steel Building, INC. | Baxley | GA | — | ◇ UNVERIFIED |
| BABay Area Machinist | Hayward | CA | — | ◇ UNVERIFIED |
| BCBay City Shovels INC | Au Gres | MI | — | ◇ UNVERIFIED |
| BOBay Ornamental Iron & Welding | Costa Mesa | CA | — | ◇ UNVERIFIED |
| BFBayou Fabricated Products, INC. | Port Allen | LA | — | ◇ UNVERIFIED |
| BFBayou Fabricators and Machine Works, INC | Plaquemine | LA | — | ◇ UNVERIFIED |
| BSBay Steel Co., INC. | Halifax | MA | — | ◇ UNVERIFIED |
| BVBay View Railing & Ornamental, INC. | Saint Francis | WI | — | ◇ UNVERIFIED |
| BIBBCB Investco, LLC | Phoenix | AZ | — | ◇ UNVERIFIED |
| BMB&B Metal Works, LLC | Carbon | TX | — | ◇ UNVERIFIED |
| BSBcb Stainless-steel Custom Work INC. | Brooklyn | NY | — | ◇ UNVERIFIED |
