| LSLiberty Steel Fabricating INC | Saint Joseph | MI | — | ◇ UNVERIFIED |
| LML & M Precision Fabrication | Airway Heights | WA | — | ◇ UNVERIFIED |
| LDLusive Decor | Los Angeles | CA | — | ◇ UNVERIFIED |
| LCLustre Cal Nameplate Corporation | Lodi | CA | — | ◇ UNVERIFIED |
| MMMak Metals INC | Dallas | OR | — | ◇ UNVERIFIED |
| MSMcarthur Sheet Metal Works Company | South Sioux City | NE | — | ◇ UNVERIFIED |
| MMMc Metalfab INC | Lino Lakes | MN | — | ◇ UNVERIFIED |
| MCMetal Coating - Mfg CO INC | Isanti | MN | — | ◇ UNVERIFIED |
| MIMetal Integrity LLC | Carbondale | PA | — | ◇ UNVERIFIED |
| MMMicron Metalworks | Ham Lake | MN | — | ◇ UNVERIFIED |
| MEMidland Equipment CO | Lakeville | MN | — | ◇ UNVERIFIED |
| MEMissouri Equipment Company | Saint Louis | MO | — | ◇ UNVERIFIED |
| MBMonterey Bay Rebar, INC. | Watsonville | CA | — | ◇ UNVERIFIED |
| MSMwd Steel Fabrication | Lincoln | NE | — | ◇ UNVERIFIED |
| NGNelson Grinding | Fullerton | CA | — | ◇ UNVERIFIED |
| NPNevada Precision Sheet Metal, INC. | Las Vegas | NV | — | ◇ UNVERIFIED |
| NCNew Com Metal Products CORP | Randolph | MA | — | ◇ UNVERIFIED |
| NENew England Chimney Supply, INC. | Williston | VT | — | ◇ UNVERIFIED |
| NHNew Hampshire Precision Fabricators INC. | Londonderry | NH | — | ◇ UNVERIFIED |
| NTNorth Topeka Fabrication, LLC | Topeka | KS | — | ◇ UNVERIFIED |
| OSOscar S Field INC | Ashland | VA | — | ◇ UNVERIFIED |
| OMOverkill Motorsports, INC. | Dallas | TX | — | ◇ UNVERIFIED |
| PMParadis Metalworks LLC | Attleboro Falls | MA | — | ◇ UNVERIFIED |
| PCPivot Corporation | Canton | GA | — | ◇ UNVERIFIED |
| PWPlacer Water Works | Olivehurst | CA | — | ◇ UNVERIFIED |
| POPlenums of Florida INC | Pinellas Park | FL | — | ◇ UNVERIFIED |
| PIPrecision Industries INC | Broomfield | CO | — | ◇ UNVERIFIED |
| PSPrecision Solutions INC. | Richmond | UT | — | ◇ UNVERIFIED |
| PTPrecision Technology, INC. | Las Cruces | NM | — | ◇ UNVERIFIED |
 Precision Waterjet and Laser | Placentia | CA | — | ◇ UNVERIFIED |
| QAQuality Aerospace Coating, LLC | Lakeland | FL | — | ◇ UNVERIFIED |
 Quality Machine & Fabrication, INC. | La Fayette | GA | — | ◇ UNVERIFIED |
| RURacks Unlimited, INC | Sylmar | CA | — | ◇ UNVERIFIED |
 Rapid Manufacturing INC. | Powhatan | VA | — | ◇ UNVERIFIED |
| RMR-d Manufacturing, INC. | East Lyme | CT | — | ◇ UNVERIFIED |
| RSReal Steel Fabricators INC | Nashville | TN | — | ◇ UNVERIFIED |
| RLRecherche LLC Dba All My Walls | Pine River | MN | — | ◇ UNVERIFIED |
| RMRisa Management CORP. | New Lebanon | NY | — | ◇ UNVERIFIED |
| RMRobbins Manufacturing INC | Fall River | WI | — | ◇ UNVERIFIED |
| RIRomak Iron Works | Benicia | CA | — | ◇ UNVERIFIED |
| RFRooks Fabrication, LLC | Tulsa | OK | — | ◇ UNVERIFIED |
| RMRoyal Manufacturing Industries LLC | Santa Ana | CA | — | ◇ UNVERIFIED |
| SCSajawi Corporation | Littleton | MA | — | ◇ UNVERIFIED |
| SRSanta Rosa Stainless Steel | Santa Rosa | CA | — | ◇ UNVERIFIED |
| SCSanz Clima Dba Kenway Engineering | Fairmont | MN | — | ◇ UNVERIFIED |
| SCSeachrome Corporation | Carson | CA | — | ◇ UNVERIFIED |
| SLSeroge L.t. | Riverside | CA | — | ◇ UNVERIFIED |
| SMService Manufacturing Group, INC. | Buffalo | NY | — | ◇ UNVERIFIED |
| SMSierra Metals INC | Saint Paul | MN | — | ◇ UNVERIFIED |
| SFSmg Fab, INC. | Leola | PA | — | ◇ UNVERIFIED |
