| Business | Phone |
| Electrical Instrumentation 33 Riverside Ave, Rensselaer 12144 | (518) 462-6218 |
| La Corte Co Inc 621 3rd Ave Ext, Rensselaer 12144 | (518) 286-1272 |
| Martin Electric 2 Cooper Ave # 2, Rensselaer 12144 | (518) 477-7577 |
| Stilsing Electric Inc 555 South St, Rensselaer 12144 | (518) 463-4451 |