| Business | Phone |
| Acs Kingston Inc 640 Justus Dr, Kingston K7M 4H4 | (613) 384-5311 |
| Base Controls 688 Mckay St, Kingston K7M 7G2 | (613) 634-1360 |
| Taugher Controls Ltd 141 Hickson Ave, Kingston K7K 2N7 | (613) 542-8812 |
| Cutler Hammer Engineering Svc 407 Counter St #100, Kingston K7K 6A9 | (613) 531-4956 |