| Business | Phone |
| Adaptronics 1223 Peoples Ave, Troy 12180 | (518) 276-2484 |
| Advanced Innovative Tech Inc 2319 15th St, Troy 12180 | (518) 270-9695 |
| Anthony Erdman & Assoc 317 Brick Church Rd, Troy 12180 | (518) 279-0505 |
| Champagne Associates 240 N Greenbush Rd, Troy 12180 | (518) 283-8111 |
| Chazen Co 20 Gurley Ave, Troy 12182 | (518) 235-8050 |
| Entek Engineering 200 Broadway # 2, Troy 12180 | (518) 274-5550 |
| Global Composites Inc 477 Brunswick Rd, Troy 12180 | (518) 881-1405 |
| Intertech 406 Fulton St # 300, Troy 12180 | (518) 271-0127 |
| Kestner Engineers 1 Kestner Ln, Troy 12180 | (518) 273-7446 |
| R Stephens Consulting Engineer 77 Maple Ave, Troy 12180 | (518) 272-5545 |
| Zaremba Engineering 5 Broadway, Troy 12180 | (518) 273-2555 |