National Metal Stampings, INC | Lancaster | — | ● ACTIVE |
New Hampshire Ball Bearings INC | Chatsworth | — | ● ACTIVE |
| NPNth Precision Machining INC | Gardena | — | ● ACTIVE |
Omni-lite Industries California, INC. | Cerritos | — | ● ACTIVE |
| PIPeen-rite, INC. | Sun Valley | — | ● ACTIVE |
Pervan Tooling Company LLC | Compton | — | ● ACTIVE |
| PTPlasma Technology Incorporated | Torrance | — | ● ACTIVE |
Powers Bros Machine INC | Montebello | — | ● ACTIVE |
Precision Tube Bending | Santa Fe Springs | — | ● ACTIVE |
| PMPrompt Machine Products, INC | Chatsworth | — | ● ACTIVE |
Ptg Precision LLC | Gardena | — | ● ACTIVE |
Rah Industries INC | Santa Clarita | — | ● ACTIVE |
Ramda Metal Specialties, INC. | Gardena | — | ● ACTIVE |
Ramp Engineering INC | Paramount | — | ● ACTIVE |
Rbc Lubron Bearing Systems, INC. | Santa Fe Springs | — | ● ACTIVE |
R.m. Baker Machine & Tool, INC. | Covina | — | ● ACTIVE |
Robert P. Martin Company | South El Monte | — | ● ACTIVE |
Roland Aerospace LLC | Gardena | — | ● ACTIVE |
Ross Name Plate Company | Monterey Park | — | ● ACTIVE |
Roy E. Hanson Jr. Mfg. | Los Angeles | — | ● ACTIVE |
| RPR&v Polishing LLC | Gardena | — | ● ACTIVE |
| SCSabrin CORP | Pasadena | — | ● ACTIVE |
Sai Industries | Glendale | — | ● ACTIVE |
| SASamtech Automotive Usa, INC. | Carson | — | ● ACTIVE |
Santa Fe Enterprises INC. | Santa Fe Springs | — | ● ACTIVE |
Saturn Fasteners INC | Burbank | — | ● ACTIVE |
Schmidt Industries, INC. | Sun Valley | — | ● ACTIVE |
Scotia Engineering, INC | Santa Fe Springs | — | ● ACTIVE |
| SISerrano Industries, INC. | Santa Fe Springs | — | ● ACTIVE |
| SASierra Alloys Company | Irwindale | 20–99 | ● ACTIVE |
Skymaster, INC. | City of Industry | — | ● ACTIVE |
Sonoma Industries, INC. | Bell Gardens | — | ● ACTIVE |
Space-lok, INC. | Gardena | — | ● ACTIVE |
Spec Tool Company | Santa Fe Springs | — | ● ACTIVE |
| SStadco | Los Angeles | — | ● ACTIVE |
Sundial Industries, INC. | Sun Valley | — | ● ACTIVE |
Systems Wire & Cable, Limited | Los Angeles | — | ● ACTIVE |
Taricco CORP | Long Beach | 20–99 | ● ACTIVE |
Tda Magnetics LLC | Rancho Dominguez | — | ● ACTIVE |
Tecfar Manufacturing, INC. | Sun Valley | — | ● ACTIVE |
| TITecomet INC | Azusa | 20–99 | ● ACTIVE |
| TMThe Macsmith Corporation | Gardena | — | ● ACTIVE |
| TEThermally Engineered Manufactured Products, INC | Gardena | — | ● ACTIVE |
Topnotch Quality Works, INC. | Pacoima | — | ● ACTIVE |
Tri-j Metal Heat Treating CO. | Pomona | — | ● ACTIVE |
Triumph Processing INC | Lynwood | — | ● ACTIVE |
T & T Drilling, INC. | Torrance | — | ● ACTIVE |
United Drill Bushing Corporation | Downey | — | ● ACTIVE |
Victor Wire & Cable, INC. | Los Angeles | — | ● ACTIVE |
Vinaco Precision Machining, LLC. | Chatsworth | — | ● ACTIVE |