| JSJacksonville Steel INC | Beebe | AR | — | ● ACTIVE |
| JIJaquith Industries INC | Syracuse | NY | 20–99 | ● ACTIVE |
Jet Helseth Manufacturing, INC. | Deland | FL | — | ● ACTIVE |
Jh Industries, INC. | Twinsburg | OH | — | ● ACTIVE |
J.i.t. Manufacturing, INC. | Cowpens | SC | 20–99 | ● ACTIVE |
| JCJ.r. Custom Metal Products, LLC | Wichita | KS | 100–499 | ● ACTIVE |
Kansas City Structural Steel, INC | Kansas City | MO | — | ● ACTIVE |
| KIKat Industries INC | Oklahoma City | OK | 20–99 | ● ACTIVE |
Ketcham Supply CO INC | New Bedford | MA | — | ● ACTIVE |
Keystone Machine & Fab, INC | Grafton | OH | — | ● ACTIVE |
| KIKingspan Insulated Panels INC. | Deland | FL | 100–499 | ● ACTIVE |
King Steel, INC. | Lawrenceville | GA | — | ● ACTIVE |
Kinross Fab & Machine INC | Kincheloe | MI | — | ● ACTIVE |
Knight Boat Docks, INC. | Deer Park | WA | 1–19 | ● ACTIVE |
Laser Craft Technologies, INC. | Gainesville | GA | 100–499 | ● ACTIVE |
| LCL C Metals INC | Austell | GA | — | ● ACTIVE |
Ldj Manufacturing, INC. | Pella | IA | — | ● ACTIVE |
Legacy Building Solutions, LLC | Saint Augusta | MN | — | ● ACTIVE |
| LSLiberty Steel Fabrication INC | Fyffe | AL | 20–99 | ● ACTIVE |
Lindsey Manufacturing CO | Azusa | CA | — | ● ACTIVE |
Linita Design & Mfg. CORP | Lackawanna | NY | 20–99 | ● ACTIVE |
Majr Products CORP | Saegertown | PA | — | ● ACTIVE |
Mannon Metal Works LLC | Lebanon | MO | — | ● ACTIVE |
Marine & Industrial Supply Company, INC. | Mobile | AL | 20–99 | ● ACTIVE |
Marine Rigging INC | Mobile | AL | — | ● ACTIVE |
| MBMarks Brothers INC | Boring | OR | — | ● ACTIVE |
Marlboro Wire, Limited | Quincy | IL | 20–99 | ● ACTIVE |
Maverick Aerospace LLC | City of Industry | CA | — | ● ACTIVE |
Maxsteel Fabrication, LLC | Paris | TN | 20–99 | ● ACTIVE |
Mct INC | Albuquerque | NM | — | ● ACTIVE |
Melco Steel INC | Azusa | CA | — | ● ACTIVE |
| MFMetal Fab South INC | Kenner | LA | — | ● ACTIVE |
Metal Solutions Design & Fabrication LLC | Dayton | KY | — | ● ACTIVE |
| MIMetamora Industries, LLC | Metamora | IL | 20–99 | ● ACTIVE |
Met International Trading Company, INC. | Houston | TX | — | ● ACTIVE |
Metro Assemblies INC | Minneapolis | MN | — | ● ACTIVE |
| MSMetro Steel & Pipe Supply, INC. | Tavares | FL | 20–99 | ● ACTIVE |
Midwest Bale Ties INC | Crawfordsville | IN | — | ● ACTIVE |
Midwest Industrial Metal Fabrication, INC. | Huntington | IN | — | ● ACTIVE |
Mil-mar Century Corporation | Miamisburg | OH | — | ● ACTIVE |
Mission Critical Solutions, LLC | Alum Bank | PA | 20–99 | ● ACTIVE |
Modular Container Systems, INC. | Lavonia | GA | 20–99 | ● ACTIVE |
Mofab INC | Anderson | IN | — | ● ACTIVE |
Montana Hydraulics, LLC | Helena | MT | — | ● ACTIVE |
Morris Industries, INC | Powhatan | VA | — | ● ACTIVE |
| MBMorrison Berkshire INC | North Adams | MA | — | ● ACTIVE |
Nashville Wire Products Manufacturing Co, LLC | Nashville | TN | — | ● ACTIVE |
National Strand Products, INC | Baytown | TX | — | ● ACTIVE |
Nkp Metals LLC | Chicago | IL | — | ● ACTIVE |
| NFNorrisbuilt Fabrication and Mobile Welding, LLC | Norton | VA | 20–99 | ● ACTIVE |
Northern Cable & Automation, LLC | Howard City | MI | — | ● ACTIVE |
Owen Steel Company, INC. | Columbia | SC | 100–499 | ● ACTIVE |
Partner Steel CO INC | Pocatello | ID | — | ● ACTIVE |
Patriot Steel Fabrication, INC. | Church Creek | MD | — | ● ACTIVE |
Paul Mueller Company | Springfield | MO | 500+ | ● ACTIVE |
Pauway CORP. | Wallingford | CT | — | ● ACTIVE |
Pcx Aerostructures, LLC | Newington | CT | — | ● ACTIVE |
Pdj Cutting and Fabricating, LLC | Manitowoc | WI | — | ● ACTIVE |
Peachtree Protective Covers, INC. | Lithia Springs | GA | 100–499 | ● ACTIVE |
Pegasus Industrial Midwest LLC | Bourbonnais | IL | — | ● ACTIVE |
Pemco Corporation | Bluefield | VA | 100–499 | ● ACTIVE |
Pemco-naval Engineering Works INC | Pascagoula | MS | — | ● ACTIVE |
Pewag Traction Chain, INC | Rocklin | CA | — | ● ACTIVE |
Phoenix Fabricators and Erectors, LLC | Avon | IN | — | ● ACTIVE |
| PMPhoenix Metal Products, INC. | Fort Pierce | FL | — | ● ACTIVE |
Phoenix Wire Cloth INC | Troy | MI | — | ● ACTIVE |
Pivot Corporation | Rowlett | TX | — | ● ACTIVE |
Port City Metal Fabrication LLC | Theodore | AL | 20–99 | ● ACTIVE |
Porvair Filtration Group, INC. | Ashland | VA | — | ● ACTIVE |
Power Brace, L.l.c. | Des Moines | IA | 20–99 | ● ACTIVE |
Preformed Line Products Company | Mayfield Village | OH | 100–499 | ● ACTIVE |
Prince & Izant LLC | Cleveland | OH | — | ● ACTIVE |
Quality Chain Corporation | Hillsboro | OR | 20–99 | ● ACTIVE |
| QWQuality Welding Service INC | Suamico | WI | — | ● ACTIVE |
R and C Building Materials INC | New Orleans | LA | — | ● ACTIVE |
Ranor INC. | Westminster | MA | — | ● ACTIVE |
| RTRatliff Traditions, LLC | Shiner | TX | 1–19 | ● ACTIVE |
R. C. Fabricators, INC. | Wilmington | DE | — | ● ACTIVE |
R.e. Atckison Co., INC. | Azusa | CA | — | ● ACTIVE |
| RSRegional Steel Products INC | Semmes | AL | 1–19 | ● ACTIVE |
Robert P. Martin Company | South El Monte | CA | — | ● ACTIVE |
Robishaw Engineering INC | Houston | TX | 20–99 | ● ACTIVE |
Rs Welding, LLC | Pilot Point | TX | — | ● ACTIVE |
Safariland LLC | Dalton | MA | — | ● ACTIVE |
San Diego Steel Solutions | Escondido | CA | — | ● ACTIVE |
Sea Box INC | Hillsborough | NJ | 20–99 | ● ACTIVE |
Serrmi Products LLC | Pittsburg | KS | 100–499 | ● ACTIVE |
Shepard Steel CO INC | Hartford | CT | — | ● ACTIVE |
S & H Steel Co, LLC | Gilbert | AZ | — | ● ACTIVE |
Skymaster, INC. | City of Industry | CA | — | ● ACTIVE |
S L Chasse Welding & Fabricating, INC. | Hudson | NH | — | ● ACTIVE |
Smith Ironworks INC | Lyerly | GA | — | ● ACTIVE |
Southern Services & Equipment INC | Saint Bernard | LA | — | ● ACTIVE |
Southwest Trailer Manufacturing INC | Miami | FL | — | ● ACTIVE |
Steel-craft CORP. of Hartford | Hartford | WI | — | ● ACTIVE |
Steel Fab, INC. | Arlington | WA | — | ● ACTIVE |
Steelfab, INC. | Florence | SC | — | ● ACTIVE |
Steel Service Corporation | Flowood | MS | — | ● ACTIVE |
Stewart-amos Steel, INC | Harrisburg | PA | — | ● ACTIVE |
Still Waters Metal Fab LLC | Spokane Valley | WA | — | ● ACTIVE |