| Business | Phone |
| Prism Visual Software Inc 1 Sagamore Hill Dr, Port Washington 11050 | (516) 944-5920 |
| Radnor-Wallace 921 Port Washington Blvd # 1, Port Washington 11050 | (516) 767-2131 |
| Holzblaser Corp 56 Soundview Dr, Port Washington 11050 | (516) 767-9855 |
| Ross Haber Assoc 5 Sea Gull Ln, Port Washington 11050 | (516) 944-6453 |