| JMJasper Materials Company, Inc.- Surebuilt Galvanizing | Jasper | TN | — | ◇ UNVERIFIED |
| JRJavier Rivas Fernandez | Lynwood | CA | — | ◇ UNVERIFIED |
| JLJaymar, LLC | East Longmeadow | MA | — | ◇ UNVERIFIED |
| JSJay-r's Steel & Welding, INC. | Mundelein | IL | — | ◇ UNVERIFIED |
| JBJ & B Machine Works | Santa Clara | CA | — | ◇ UNVERIFIED |
| JBJ & B Metal Processing | Flint | MI | — | ◇ UNVERIFIED |
| JLJbs, LLC | Johnstown | NY | — | ◇ UNVERIFIED |
| JSJ.b. Steel, INC. | Medford | OR | — | ◇ UNVERIFIED |
| JWJ.b.s' Welding, INC. | Ada | OK | — | ◇ UNVERIFIED |
| JCJ Cap Manufacturing LLC | Seminole | TX | — | ◇ UNVERIFIED |
| JCJ & C Machine Fabricating INC. | Baton Rouge | LA | — | ◇ UNVERIFIED |
| JMJc Metal Specialists INC | South San Francisco | CA | — | ◇ UNVERIFIED |
| JGJcm Greenhouse Mfg. LLC | Forest Hill | LA | — | ◇ UNVERIFIED |
| JIJ.c.m. Industries, INC. | Forest Park | GA | — | ◇ UNVERIFIED |
| JCJcs Central Fabrication, LLC | Alpharetta | GA | — | ◇ UNVERIFIED |
| JSJc Steel Fabricators, INC. | Henderson | NV | — | ◇ UNVERIFIED |
| JSJc Supply & Manufacturing LLC | Carlyle | IL | — | ◇ UNVERIFIED |
| JWJ&c Welding Metal | Rustburg | VA | — | ◇ UNVERIFIED |
| JFJd Fabricators INC | Granite Falls | WA | — | ◇ UNVERIFIED |
| JBJedco Building Systems, INC. | Houston | TX | — | ◇ UNVERIFIED |
| JCJefferson County Welding and Supply Company | Charles Town | WV | — | ◇ UNVERIFIED |
| JFJendel Fabricating and Machine | Beckley | WV | — | ◇ UNVERIFIED |
| JOJennmar of Kentucky INC | Winchester | KY | — | ◇ UNVERIFIED |
| JIJer-co Industries, INC. | Locust Grove | OK | — | ◇ UNVERIFIED |
| JLJered LLC | Brunswick | GA | — | ◇ UNVERIFIED |
| JLJered LLC | Brunswick | GA | — | ◇ UNVERIFIED |
| JPJerry's Piping & Fabrication, INC. | Daphne | AL | — | ◇ UNVERIFIED |
 Jersey Shore Steel INC. | Green Brook | NJ | — | ◇ UNVERIFIED |
| Jersey Shore Steel, INC. | Jackson | NJ | — | ◇ UNVERIFIED |
| JSJf Stearns CO LLC | Hyde Park | MA | — | ◇ UNVERIFIED |
| JMJg Merriman CO | Waterford | MI | — | ◇ UNVERIFIED |
| JFJgm Fabricators & Constructors, LLC | Sinking Spring | PA | — | ◇ UNVERIFIED |
| JHJ & H Equipment | Alpharetta | GA | — | ◇ UNVERIFIED |
| JJJim Johnson Dba J&s Welding & Machine Service | Humboldt | TN | — | ◇ UNVERIFIED |
| JSJimmy's Steel Shop, INC. | Albany | NY | — | ◇ UNVERIFIED |
| JJJ & J Burning and Fabricating | Warren | MI | — | ◇ UNVERIFIED |
| JSJ&j Sheet Metal and Fabercation LLC | Bradenton | FL | — | ◇ UNVERIFIED |
| JKJ K Fabrication & Supply LLC | Butte | MT | — | ◇ UNVERIFIED |
| JLJ & L Fabricators, INC. | Leeds | AL | — | ◇ UNVERIFIED |
| JLJ L White CO INC | Jordan | MN | — | ◇ UNVERIFIED |
| JCJm Construction & Engineering | Turlock | CA | — | ◇ UNVERIFIED |
| JCJm Construction Engineering INC. | Turlock | CA | — | ◇ UNVERIFIED |
| JCJm Construction Engineering, INC. | Ballico | CA | — | ◇ UNVERIFIED |
 JM Industries, LLC | Chicago | IL | — | ◇ UNVERIFIED |
| JSJmi Steel INC. | Sun Valley | CA | — | ◇ UNVERIFIED |
| JFJms Fabricated Systems, INC. | Greensburg | PA | — | ◇ UNVERIFIED |
| JWJm Welding Repair Solution, INC. | Hayward | CA | — | ◇ UNVERIFIED |
| JWJ&n Welding and Fabricators Company | Edinburg | TX | — | ◇ UNVERIFIED |
| JWJ&n Welding and Fabricators Company | Penitas | TX | — | ◇ UNVERIFIED |
| JWJ&n Welding and Fabricators Company | Weslaco | TX | — | ◇ UNVERIFIED |
| JIJob-fab, INC. | Washington | PA | — | ◇ UNVERIFIED |
| JAJoco Assembly LLC | Tulsa | OK | — | ◇ UNVERIFIED |
| JOJ. O'connor, LLC | Newington | CT | — | ◇ UNVERIFIED |
| JCJohn Crowley INC | Jackson | MI | — | ◇ UNVERIFIED |
| JCJohnson Construction and Fabrication, INC. | Jefferson | LA | — | ◇ UNVERIFIED |
| JMJohnson Metal Works LLC | Bozeman | MT | — | ◇ UNVERIFIED |
| JMJohnson's Machine and Tool, INC. | Boaz | AL | — | ◇ UNVERIFIED |
| JMJohnston Metalwork, INC | Cheboygan | MI | — | ◇ UNVERIFIED |
| JSJones Sign, INC. | Phoenix | AZ | — | ◇ UNVERIFIED |
| JFJorgensen Family Works, LLC | Redmond | OR | — | ◇ UNVERIFIED |
| JOJose's Ornamental Supply INC | Bakersfield | CA | — | ◇ UNVERIFIED |
| JDJ.p. Donovan Construction, INC. | Rockledge | FL | — | ◇ UNVERIFIED |
| JSJps Service, INC. Dba J & S Plating and Repair, INC. | Arlington | TX | — | ◇ UNVERIFIED |
| JEJq Enterprises INC. | West Valley | UT | — | ◇ UNVERIFIED |
| JRJ. Rae Jones, INC. | Panama City | FL | — | ◇ UNVERIFIED |
| JRJ Ray Mcdermott INC West Yd | Amelia | LA | — | ◇ UNVERIFIED |
| JDJr Daniels Com Blds/innovative Steel Str | Modesto | CA | — | ◇ UNVERIFIED |
| JLJrf LTD. | Woodbridge | VA | — | ◇ UNVERIFIED |
| JSJ S Alberici Construction | Saint Louis | MO | — | ◇ UNVERIFIED |
| JMJ's Metal Fabrication LLC | Tulsa | OK | — | ◇ UNVERIFIED |
| JTJ Talley Corp, Talley & Ochoa Metal Fab. | San Jacinto | CA | — | ◇ UNVERIFIED |
| JTJ Tec Industries | East Peoria | IL | — | ◇ UNVERIFIED |
| JBJudd Brothers Machine | Louisville | KY | — | ◇ UNVERIFIED |
| JSJunior Steel CO | Sun Valley | CA | — | ◇ UNVERIFIED |
| JMJustin's Motorsports | Cocolalla | ID | — | ◇ UNVERIFIED |
| JMJWB Manufacturing LLC | Tempe | AZ | — | ◇ UNVERIFIED |
| JIJwf Industries, INC. | Trussville | AL | — | ◇ UNVERIFIED |
| JWJ & W Stainless Steel Fabricators, INC. | San Antonio | TX | — | ◇ UNVERIFIED |
| JAJyoti Americas, LLC | Conroe | TX | — | ◇ UNVERIFIED |
| KTKalenborn Technologies LLC | Soddy Daisy | TN | — | ◇ UNVERIFIED |
| KLKamax L P | Troy | MI | — | ◇ UNVERIFIED |
| KMKanawha Manufacturing CO | Eleanor | WV | — | ◇ UNVERIFIED |
| KVKankakee Valley Steel | Wheatfield | IN | — | ◇ UNVERIFIED |
| KMKannon Manufacturing Inc | Forest Hill | TX | — | ◇ UNVERIFIED |
| KHKardia Holding, LLC | Denver | CO | — | ◇ UNVERIFIED |
| KHKarel Hansen Iron Works INC Dba Hansen Karel Iron | Gardena | CA | — | ◇ UNVERIFIED |
| KSKaty Steel Company INC. | Katy | TX | — | ◇ UNVERIFIED |
| KFKava Fabrication, INC. | Fargo | ND | — | ◇ UNVERIFIED |
| KSKb Steel & Building Products | Newport Beach | CA | — | ◇ UNVERIFIED |
| KBK & B Welding | Pembroke | MA | — | ◇ UNVERIFIED |
| KTKcb Towers INC | Highland | CA | — | ◇ UNVERIFIED |
| KFKC Fab LLC | Grandview | MO | — | ◇ UNVERIFIED |
| KFKc Forge Ornamental LLC | Kansas City | KS | — | ◇ UNVERIFIED |
| KTKci Technologies INC. | Charlotte | NC | — | ◇ UNVERIFIED |
| KTKc Tank | Kansas City | KS | — | ◇ UNVERIFIED |
| KKKd Kustom Fab CO. | Boring | OR | — | ◇ UNVERIFIED |
| KMKeating Manufacaturing & Fabrication, INC | Covington | LA | — | ◇ UNVERIFIED |
| KSKeech Steel INC. | Salt Lake City | UT | — | ◇ UNVERIFIED |
| KPKemp Properties, LLC | Warren | MI | — | ◇ UNVERIFIED |
| KGKen Garner Manufacturing | Chattanooga | TN | — | ◇ UNVERIFIED |
