| Business | Phone |
| A & A Tool & Die Co 9910 Rush St, South El Monte 91733 | (626) 279-1870 |
| Austin Screw Products 10350 Rush St, South El Monte 91733 | (626) 448-1671 |
| Engineering Design Industry 9649 Rush St, South El Monte 91733 | (626) 443-7741 |
| J & A Engineering & Machine Co 1933 Central Ave, South El Monte 91733 | (626) 575-0046 |
| J-D Manufacturer Co 9645 Rush St, South El Monte 91733 | (626) 442-0850 |
| James Lorenzo Machines 10915 Fawcett Ave, South El Monte 91733 | (626) 444-8555 |
| Job Precision Machining 9718 Klingerman St, South El Monte 91733 | (626) 442-1724 |
| L & L Screw Machine Products 9653 El Poche St, South El Monte 91733 | (626) 444-0993 |
| M B Stamping 10756 Weaver Ave, South El Monte 91733 | (626) 444-6294 |
| Melkes Machine 9928 Hayward Way, South El Monte 91733 | (626) 448-5062 |
| Mike's Micro Parts 1901 Potrero Ave, South El Monte 91733 | (626) 443-0675 |
| Mikelson Machine Shop 2546 Merced Ave, South El Monte 91733 | (626) 448-3920 |
| Nelson's Welding & Machine Co 9712 El Poche St, South El Monte 91733 | (626) 444-9858 |
| Optel-Matic Inc 11221 Thienes Ave, South El Monte 91733 | (626) 444-2671 |
| Proto Space Engineering 2214 Loma Ave, South El Monte 91733 | (626) 442-8273 |
| Srco Inc 2305 Merced Ave, South El Monte 91733 | (626) 350-8321 |
| Tape Turn Specialties 1840 Tyler Ave, South El Monte 91733 | (626) 448-5526 |
| Taylor Tool & Machine Co 1836 Floradale Ave, South El Monte 91733 | (626) 448-6166 |
| Thread Specialties Inc 10965 Weaver Ave, South El Monte 91733 | (626) 443-7185 |
| Thrun Manufacturing 1710 Santa Anita Ave, South El Monte 91733 | (626) 579-1997 |
| Vulcan Industries 2558 Merced Ave, South El Monte 91733 | (626) 448-5431 |
| A Plus Cnc Machining 1849 Merced Ave, South El Monte 91733 | (626) 442-9800 |
| Aerlab Inc 1805 Belcroft Ave, South El Monte 91733 | (626) 579-0656 |
| American Home & Lap 10356 Rush St, South El Monte 91733 | (626) 454-1678 |
| Azteca Machine Shop 2237 Loma Ave, South El Monte 91733 | (626) 579-5701 |
| Brothers Machine Shop 1919 Leafdale Ave # A, South El Monte 91733 | (626) 448-8292 |
| De Soto Thermocouple Products 10146 1/2 Rush St, South El Monte 91733 | (626) 448-5565 |
| Fabrications Tool & Die 2457 1/2 Chico Ave, South El Monte 91733 | (626) 575-2826 |
| Gun Drilling Specialties Inc 2632 Loma Ave, South El Monte 91733 | (626) 579-3120 |
| J M Engineering 1919 Leafdale Ave # E, South El Monte 91733 | (626) 444-2980 |
| Jose's Machine Shop 10041 Rush St, South El Monte 91733 | (626) 579-2858 |
| Jp Co 9625 Rush St, South El Monte 91733 | (626) 444-1946 |
| Manocchi Machine Works 10348 Rush St, South El Monte 91733 | (626) 444-5612 |
| Mercury Broach Co Inc 2546 Seaman Ave, South El Monte 91733 | (626) 443-5904 |
| Transport Machine 2553 Strozier Ave, South El Monte 91733 | (626) 444-9997 |
| Tri-Star Precision 10356 Rush St, South El Monte 91733 | (626) 444-3930 |
| Storm Machining 10417 Rush St, South El Monte 91733 | (626) 448-6097 |
| Super Precision Machining 10429 Rush St, South El Monte 91733 | (626) 448-6683 |
| T L Screw Product 1845 Merced Ave, South El Monte 91733 | (626) 579-6907 |
| South Alliance Industrial Mchn 2319 Troy Ave, South El Monte 91733 | (626) 575-3392 |
| R & D Machine Shop 2541 Merced Ave, South El Monte 91733 | (626) 575-1063 |
| Ruby Manufacturing & Sales 9853 Alpaca St, South El Monte 91733 | (626) 443-1171 |
| Scodan Systems Inc 12373 Barringer St, South El Monte 91733 | (626) 444-1020 |
| Rapid Precision Machining 10917 Fawcett Ave, South El Monte 91733 | (626) 443-4293 |