| Business | Phone |
| Circuit Service 5 Marway Cir # 5, Rochester 14624 | (585) 426-6880 |
| Improv Systems Inc 3136 Winton Rd S, Rochester 14623 | (585) 756-5411 |
| Nortel Networks 97 Humboldt St, Rochester 14609 | (585) 482-5000 |
| Rochester Microsystems Inc 90 Airpark Dr # 300, Rochester 14624 | (585) 328-5850 |
| Scientific Measurement Group 5 Marway Cir, Rochester 14624 | (585) 760-1066 |
| T & C Power Conversion Inc 110 Halstead St, Rochester 14610 | (585) 482-5551 |