| Business | Phone |
| Cardio Display Inc 20 Vanderventer Ave # 101e, Port Washington 11050 | (516) 944-5394 |
| Drive Medical Design & Manufacturer 12 Harbor Park Dr, Port Washington 11050 | (516) 998-4600 |
| Instrutech Corp 20 Vanderventer Ave # 101e, Port Washington 11050 | (516) 883-1300 |
| Medical Information Systems 2 Seaview Blvd # 104, Port Washington 11050 | (516) 621-7200 |