| MSMetal Solutions - Indianapolis | Shelbyville | IN | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| MSMetal Solutions - Morrison | Morrison | TN | Fabricated Metal Product Manufacturing332311 | 1-19 | ◐ LIKELY ACTIVE |
| MSMetal Solutions - Phoenix | Tolleson | AZ | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| MSMetal Solutions - Rome | Rome | NY | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| MSMetal Solutions Salt Lake City | Salt Lake City | UT | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| MSMetal Solutions - Scranton | Dunmore | PA | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| MSMetal Solutions-Tifton | Tifton | GA | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| MSMetal Solutions - Vicksburg | Vicksburg | MS | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| MMMid-South Metal Products Inc AZ | Tolleson | AZ | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| MMMid-South Metal Products Inc ID | Nampa | ID | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| MMMid-South Metal Products Inc IN | Elkhart | IN | Fabricated Metal Product Manufacturing332311 | 1-19 | ◐ LIKELY ACTIVE |
| MBMillennium Buildings INC | Dobson | NC | Fabricated Metal Product Manufacturing332311 | — | ◐ LIKELY ACTIVE |
| MMM & M Coastal Manufacturing - Houston | Houston | TX | Fabricated Metal Product Manufacturing332311 | 100-499 | ◐ LIKELY ACTIVE |
| MUMMY US Inc | Louisville | KY | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
MP Acquisition Group | Cincinnati | OH | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| MSMueller Supply Company INC | Brookhaven | MS | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| MSMueller Supply Inc | Buckeye | AZ | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| MSMueller Supply Inc | Amarillo | TX | Fabricated Metal Product Manufacturing332311 | 1-19 | ◐ LIKELY ACTIVE |
| NBNash Building Systems, Inc. | Tarboro | NC | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| NWNational Wall Panels, Inc | Red Hill | PA | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| NSNative Standard Creations, LLC | Lindsay | OK | Fabricated Metal Product Manufacturing332311 | — | ◐ LIKELY ACTIVE |
| NPN.E.W. Plastics Corp - Builders Warehouse | Millersburg | OH | Fabricated Metal Product Manufacturing332311 | 1-19 | ◐ LIKELY ACTIVE |
| NPN.E.W. Plastics Corp - PA East Warehouse | Lancaster | PA | Fabricated Metal Product Manufacturing332311 | 1-19 | ◐ LIKELY ACTIVE |
| NPN.E.W. Plastics Corp - PA Warehouse - Punxy | Punxsutawney | PA | Fabricated Metal Product Manufacturing332311 | 1-19 | ◐ LIKELY ACTIVE |
| NLNIPG Laurens SC | Laurens | SC | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| NGNoll-Norwesco - (aka Gibraltar Industries) | Fife | WA | Fabricated Metal Product Manufacturing332311 | 100-499 | ◐ LIKELY ACTIVE |
| NDNucor Data Systems - Frankfort | Frankfort | KY | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| NINucor Insulated Panel Group - Sheridan AR | Sheridan | AR | Fabricated Metal Product Manufacturing332311 | 100-499 | ◐ LIKELY ACTIVE |
| NINucor Insulated Panel Group - Waterloo | Waterloo | IN | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| PAPacific Award Metals - (aka Gibraltar Industries) | Pamona | CA | Fabricated Metal Product Manufacturing332311 | 100-499 | ◐ LIKELY ACTIVE |
| PMPacific Metal co. | Tualatin | OR | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| PEPanelmatic Electrical Solutions LLC | Houston | TX | Fabricated Metal Product Manufacturing332311 | — | ◐ LIKELY ACTIVE |
| PIParkline, Inc - Headquarters | Eleanor | WV | Fabricated Metal Product Manufacturing332311 | 100-499 | ◐ LIKELY ACTIVE |
| PIParkline, Inc. - Texas Plant | Hitchcock | TX | Fabricated Metal Product Manufacturing332311 | 100-499 | ◐ LIKELY ACTIVE |
| PIPCI Indianapolis Prefab (550) | Anderson | IN | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| PCPeachtree City | Peachtree City | GA | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| PPoly-Tex--Commercial | Castle Rock | MN | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| PDPoly-Tex--Consumer Division | Burnsville | MN | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| PBPrime Building Components | Dublin | TX | Fabricated Metal Product Manufacturing332311 | 100-499 | ◐ LIKELY ACTIVE |
| PBProactive Ballistic Systems, LLC | S Hutchinson | KS | Fabricated Metal Product Manufacturing332311 | — | ◐ LIKELY ACTIVE |
| PRPublic Restroom Company Reno | Reno | NV | Fabricated Metal Product Manufacturing332311 | 1-19 | ◐ LIKELY ACTIVE |
| PEPyrotek Evansville | Evansville | IN | Fabricated Metal Product Manufacturing332311 | 1-19 | ◐ LIKELY ACTIVE |
| QWQualex WPA@ Franklin | Franklin | PA | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| RRCC (Elizabethton) | Elizabethton | TN | Fabricated Metal Product Manufacturing332311 | 100-499 | ◐ LIKELY ACTIVE |
| RMRCC Monticello | Monticello | IA | Fabricated Metal Product Manufacturing332311 | 100-499 | ◐ LIKELY ACTIVE |
| RDRed Dot Buildings | Athens | TX | Fabricated Metal Product Manufacturing332311 | 100-499 | ◐ LIKELY ACTIVE |
| RARedguard Armoda | Belle Chasse | LA | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| RBRedGuard Baytown | Baytown | TX | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| RDRedGuard Diversified Structures | Thomasville | GA | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
| RHRedGuard - Headquarters | Wichita | KS | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |