| 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 |
Mannon Metal Works LLC | Lebanon | MO | — | ● ACTIVE |
| MBMarks Brothers INC | Boring | OR | — | ● ACTIVE |
Maverick Aerospace LLC | City of Industry | CA | — | ● ACTIVE |
Maxsteel Fabrication, LLC | Paris | TN | 20–99 | ● ACTIVE |
Mct INC | Albuquerque | NM | — | ● ACTIVE |
| MPMdc Precision LLC | Hayward | CA | — | ● ACTIVE |
Melco Steel INC | Azusa | CA | — | ● ACTIVE |
| MFMetal Fab South INC | Kenner | LA | — | ● ACTIVE |
Metallus INC. | Canton | OH | 500+ | ● 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 |
| MSMetro Steel & Pipe Supply, INC. | Tavares | FL | 20–99 | ● 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 |
Mofab INC | Anderson | IN | — | ● ACTIVE |
Montana Hydraulics, LLC | Helena | MT | — | ● ACTIVE |
Morris Industries, INC | Powhatan | VA | — | ● ACTIVE |
| MBMorrison Berkshire INC | North Adams | MA | — | ● ACTIVE |
Nkp Metals LLC | Chicago | IL | — | ● ACTIVE |
| NFNorrisbuilt Fabrication and Mobile Welding, LLC | Norton | VA | 20–99 | ● ACTIVE |
North American Hoganas Company | Hollsopple | PA | — | ● ACTIVE |
North Jackson Specialty Steel LLC | North Jackson | OH | — | ● ACTIVE |
| NSNucor Steel Tuscaloosa, INC. | Tuscaloosa | AL | 100–499 | ● 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 |
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 |
Phoenix Fabricators and Erectors, LLC | Avon | IN | — | ● ACTIVE |
| PMPhoenix Metal Products, INC. | Fort Pierce | FL | — | ● ACTIVE |
Pivot Corporation | Rowlett | TX | — | ● ACTIVE |
Port City Metal Fabrication LLC | Theodore | AL | 20–99 | ● ACTIVE |
Power Brace, L.l.c. | Des Moines | IA | 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 |
R. C. Fabricators, INC. | Wilmington | DE | — | ● ACTIVE |
R.e. Atckison Co., INC. | Azusa | CA | — | ● ACTIVE |
| RSRegional Steel Products INC | Semmes | AL | 1–19 | ● 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 |
Ssab Alabama INC | Axis | AL | — | ● ACTIVE |
Ssab Enterprises LLC | Mobile | AL | 100–499 | ● 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 |
| SMStrickland Machine Company, LLC | Richmond | VA | 1–19 | ● ACTIVE |
Sts Steel, INC. | Schenectady | NY | 20–99 | ● ACTIVE |
Superior Machining and Fabrication INC | Muenster | TX | — | ● ACTIVE |
Superior Precision Sheet Metal CORP. | Colorado Springs | CO | — | ● ACTIVE |
Superior Steel INC | Knoxville | TN | — | ● ACTIVE |
T & D Fabrication INC | Drumright | OK | 20–99 | ● ACTIVE |
| TUTerra Universal, INC. | Fullerton | CA | — | ● ACTIVE |
| TSThornton Steel Holdings, INC. | Fort Worth | TX | 20–99 | ● ACTIVE |
Tiger Tanks, INC | Bakersfield | CA | — | ● ACTIVE |
Tolar Manufacturing Company, Incorporated | Corona | CA | — | ● ACTIVE |
Trans-tec Machine, LTD. | Houston | TX | — | ● ACTIVE |
Traughber Mechanical Services, INC. | Franklin | KY | 20–99 | ● ACTIVE |
Trinity Design Group LLC | Pell City | AL | — | ● ACTIVE |
| TMTriton Metals, INC | Hollywood | MD | 20–99 | ● ACTIVE |
Truenorth Steel, INC | Fargo | ND | — | ● ACTIVE |
Trufab LLC | Shelton | WA | — | ● ACTIVE |
Ulbrich Specialty Wire Products LLC | Westminster | SC | — | ● ACTIVE |
Universal Fabric Structures, INC. | Telford | PA | — | ● ACTIVE |
| UMUniversal Metal Works, LLC | Fulton | NY | 20–99 | ● ACTIVE |
Utah Pacific Bridge & Steel, LLC | Lindon | UT | 20–99 | ● ACTIVE |
Vance Metal Fabricators INC | Geneva | NY | — | ● ACTIVE |
| VIVoss Industries, LLC | Berea | OH | 100–499 | ● ACTIVE |
Waco Products, INC | Baltimore | MD | 20–99 | ● ACTIVE |
Wagstaff INC | Spokane Valley | WA | 100–499 | ● ACTIVE |
Waite Speciality Machine Work, INC. | Longview | WA | — | ● ACTIVE |
Warrenton Steel Fabrication & Supply, LLC | Warrenton | MO | — | ● ACTIVE |
Washington Equipment Manufacturing Company, INC. | Spokane | WA | — | ● ACTIVE |