| Business | Phone |
| Accu-Temp Cooling & Heating 239 Springmount Pl, Kitchener N2A 3V4 | (519) 896-7027 |
| Intelligent Automated Sltns 1601 River Rd E, Kitchener N2A 3Y4 | (519) 893-2724 |
| Pertron Canada Inc 65 Trillium Park Pl, Kitchener N2E 1X1 | (519) 748-5106 |
| Progressive Control Systems 550 Trillium Dr #1, Kitchener N2R 1K3 | (519) 748-1676 |
| Russell Controls Ltd 74 Laurentian Dr, Kitchener N2E 1C4 | (519) 745-8778 |
| Sierra Controls 235 Heiman St, Kitchener N2M 3M2 | (519) 570-4822 |
| Control Technologies 15 Cora Dr, Kitchener N2N 3C6 | (519) 579-5366 |
| Energy Controls & Mechanical 240 Mcintyre Dr, Kitchener N2R 1E8 | (519) 893-2638 |
| Generator Control Systems Inc 441 Prospect Ave, Kitchener N2A 1E2 | (519) 895-8473 |