Mechanical Analysis/repair, INC. | Lodi | — | ● ACTIVE |
Mechanical Metal Finishing CO | Gardena | — | ● ACTIVE |
Megatech Manufacturing LLC | Westminster | — | ● ACTIVE |
| MDMeggitt Defense Systems, INC. | Irvine | 100–499 | ● ACTIVE |
Melco Steel INC | Azusa | — | ● ACTIVE |
Melrose Metal Finishing, INC | Oakland | — | ● ACTIVE |
Metal Chem, INC. | Chatsworth | — | ● ACTIVE |
| MEMetal Etch Services INC | San Marcos | 20–99 | ● ACTIVE |
Metalid Manufacturing INC | Pacoima | — | ● ACTIVE |
| MIMetal Improvement Company, LLC | Santa Ana | — | ● ACTIVE |
| MIMetal Improvement Company, LLC | Lynwood | — | ● ACTIVE |
| MSMetal Surfaces International, LLC | Bell Gardens | 100–499 | ● ACTIVE |
Milliflect Company LLC | Newark | — | ● ACTIVE |
| MMMilo Machining INC. | Torrance | — | ● ACTIVE |
Mil-spec Heat Treating INC | Huntington Beach | — | ● ACTIVE |
Mini-flex Corporation | Ventura | — | ● ACTIVE |
| MPMorris Precision Products, INC. | Canyon Country | — | ● ACTIVE |
Moseys' Production Machinists, INC. | Anaheim | — | ● ACTIVE |
National Metal Stampings, INC | Lancaster | — | ● ACTIVE |
Ndk Paragon, LLC | Oceanside | — | ● ACTIVE |
New Hampshire Ball Bearings INC | Chatsworth | — | ● ACTIVE |
Nextmod, INC. | Riverside | — | ● ACTIVE |
Nipro Optics INC. | Irvine | — | ● ACTIVE |
| NPNor-cal Products, INC. | Yreka | — | ● ACTIVE |
Norotos, INC | Santa Ana | — | ● ACTIVE |
| NPNth Precision Machining INC | Gardena | — | ● ACTIVE |
Odyssey Machining | San Jose | — | ● ACTIVE |
| OPO.e.m. Precision LLC | Stanton | — | ● ACTIVE |
Olmar Supply, INC. | Livermore | 20–99 | ● ACTIVE |
Omanson Precision Engineering, INC | Chino | — | ● ACTIVE |
Omni-lite Industries California, INC. | Cerritos | — | ● ACTIVE |
| OMOmni Metal Finishing, INC. | Fountain Valley | — | ● ACTIVE |
One-way Manufacturing INC. | Anaheim | — | ● ACTIVE |
Opti-forms, INC. | Temecula | — | ● ACTIVE |
Orlando Spring CORP | Huntington Beach | — | ● ACTIVE |
Oxnard Precision Fabrication, INC. | Oxnard | — | ● ACTIVE |
O & Y Precision INC | Morgan Hill | — | ● ACTIVE |
Pacific Corrugated Pipe Company LLC | Fontana | — | ● ACTIVE |
Pacific Corrugated Pipe Company, LLC | Sacramento | — | ● ACTIVE |
Pacon Mfg, INC. | Livermore | — | ● ACTIVE |
Pac Tech USA Packaging Technologies, INC | Santa Clara | — | ● ACTIVE |
Padron Metal Finishing Company INC | California City | — | ● ACTIVE |
| PIPeen-rite, INC. | Sun Valley | — | ● ACTIVE |
Peninsula Spring Corporation | Gilroy | — | ● ACTIVE |
Pereira Sales Company, INC. | Lemoore | — | ● ACTIVE |
Persys Engineering, INC | Santa Cruz | — | ● ACTIVE |
Pervan Tooling Company LLC | Compton | — | ● ACTIVE |
Phase 5 Weapon Systems INC | Roseville | — | ● ACTIVE |
Pierson Industries INC | Simi Valley | — | ● ACTIVE |
| PTPlasma Technology Incorporated | Torrance | — | ● ACTIVE |