| MMMiller Machine & Tool Company | Winchester | VA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| MIMks Instruments INC Broomfield | Broomfield | CO | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| MMMMA Manufacturing, Inc. dba Minute Man Anchors | East Flat Rock | NC | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| MMM&m Metals | San Antonio | TX | Fabricated Metal Product Manufacturing332322 | 20-99 | ◐ LIKELY ACTIVE |
| MFModel Finishing Co/phila | Philadelphia | PA | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| MEModern Equipment Company | Omaha | NE | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| MCModineer Coating Div North | Benton Harbor | MI | Fabricated Metal Product Manufacturing332812 | 20-99 | ◐ LIKELY ACTIVE |
| MWMorin West | Fontana | CA | Fabricated Metal Product Manufacturing332322 | 20-99 | ◐ LIKELY ACTIVE |
| MFMurray Fabricating LLC | Perryville | MO | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| NMNacco Materials Handling Group Incorporated | Greenville | NC | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| NDNc Dept of Corrections Sign Plant | Bunn | NC | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| NPNoble Panels and Gates, INC. | Milton-freewater | OR | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| NANorgren Automation Solutions | Saline | MI | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| NINorth Idaho Welding & Supply, LLC | Bonners Ferry | ID | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| OMOhio Magnetics | Maple Heights | OH | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| OMOrbit Machining Company | Schiller Park | IL | Fabricated Metal Product Manufacturing332721 | 20-99 | ◐ LIKELY ACTIVE |
| OBOzarks Barge & Dock Service, INC. | Gravois Mills | MO | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| PAP & a Metal Fab | Clackamas | OR | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| PCParsons CO INC | Goodfield | IL | Fabricated Metal Product Manufacturing332996 | — | ◐ LIKELY ACTIVE |
| PRPaslin, Ryan | Warren | MI | Fabricated Metal Product Manufacturing332312 | 100-499 | ◐ LIKELY ACTIVE |
| PIPebco INC | Paducah | KY | Fabricated Metal Product Manufacturing332911 | 20-99 | ◐ LIKELY ACTIVE |
| PIPeerless Instrument Co., INC. | Farmingdale | NY | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| PAPennex Aluminum Company - York | York | PA | Primary Metal Manufacturing331316 | 20-99 | ◐ LIKELY ACTIVE |
| PPPenny Plate - Missouri | Glasgow | MO | Fabricated Metal Product Manufacturing332439 | 20-99 | ◐ LIKELY ACTIVE |
| PPPhoenix Products RPC | Jacksonville | FL | Fabricated Metal Product Manufacturing332117 | 100-499 | ◐ LIKELY ACTIVE |
| PPPittsburgh Plug & Products CORP | Evans City | PA | Fabricated Metal Product Manufacturing332510 | 20-99 | ◐ LIKELY ACTIVE |
| PFPlant Fabricators | Floresville | TX | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| PMPps Manufacturing INC | Ridgecrest | CA | Plastics and Rubber Products Manufacturing326199 | — | ◐ LIKELY ACTIVE |
| PDPrecision Design and Machine, INC. | Nashville | TN | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| PMPrecision Machine & Welding | Afton | TN | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| PMPrecision Metal Fab INC. | Ponca City | OK | Fabricated Metal Product Manufacturing332116 | 20-99 | ◐ LIKELY ACTIVE |
| PPPrecision Pattern | Waukesha | WI | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| PWPrice Walgren LLC | Caledonia | MI | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| PDPrime Design | Eagan | MN | Fabricated Metal Product Manufacturing332999 | 100-499 | ◐ LIKELY ACTIVE |
| PPProduction Paint Stripping - Fairborn | Fairborn | OH | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| PPProduction Paint Stripping - Huntsville | Huntsville | AL | Fabricated Metal Product Manufacturing332811 | 20-99 | ◐ LIKELY ACTIVE |
| PRProgress Rail Service | Lincoln | NE | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| PLProvident LLC | Appleton | WI | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| PBPtr Baler and Compactor | Philadelphia | PA | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| QEQuality Electrical Systems | West Jordan | UT | Fabricated Metal Product Manufacturing332999 | 500+ | ◐ LIKELY ACTIVE |
| QLQuality Linings & Painting | Denver | CO | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| RIRagsdale Industries, INC. | Englewood | CO | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| RMRandall Manufacturing LLC | Elmhurst | IL | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| RRki | Houston | TX | Fabricated Metal Product Manufacturing332999 | 100-499 | ◐ LIKELY ACTIVE |
| RSRockford Spring CO. | Rockford | IL | Fabricated Metal Product Manufacturing332613 | 20-99 | ◐ LIKELY ACTIVE |
| RRRock Run Industries LLC | Millersburg | IN | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| RMRoembke Mfg. & Design, Inc. | Ossian | IN | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| RMRolls-royce Marine North America INC. | Walpole | MA | Fabricated Metal Product Manufacturing332710 | 100-499 | ◐ LIKELY ACTIVE |
| RTRoss Technology CORP | Leola | PA | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| RRotochopper | Saint Martin | MN | Fabricated Metal Product Manufacturing332999 | 100-499 | ◐ LIKELY ACTIVE |