| Business | Phone |
| Bangs Precision Machinery 672 Albany Ave, Amityville 11701 | (631) 842-6929 |
| Massapequa Precision Machining 30 Seabro Ave, Amityville 11701 | (631) 789-1485 |
| Elwood Tool Co 25 Seabro Ave, Amityville 11701 | (631) 789-4050 |
| Simtek Inc 21 Deforest St, Amityville 11701 | (631) 842-3663 |
| U S Dynamics Corp 425 Bayview Ave, Amityville 11701 | (631) 842-5600 |