| Business | Phone |
| Miniatronics Corp 561 Acorn St # K, Deer Park 11729 | (631) 242-6464 |
| Echo Electronics 151 W Industry Ct # 22, Deer Park 11729 | (631) 586-1881 |
| Nutec Components Inc 100 E Jefryn Blvd, Deer Park 11729 | (631) 242-1224 |
| Integrated Linear Devices Inc 202 W 8th St, Deer Park 11729 | (631) 667-8225 |
| International Telecom Inc 94 E Jefryn Blvd # B, Deer Park 11729 | (631) 243-1444 |
| Sector Microwave Industries 999 Grand Blvd, Deer Park 11729 | (631) 242-2300 |