| Business | Phone |
| Alltec Controls Inc 10623 E Montgomery Dr, Spokane 99206 | (509) 922-8422 |
| Blacks Industrial Inc 401 N Helena St, Spokane 99202 | (509) 535-1503 |
| Control Solutions North West 7222 E Nora Ave, Spokane 99212 | (509) 892-1121 |
| Engineered Control Systems 2702 N Perry St, Spokane 99207 | (509) 483-6215 |
| Inland Nw Ats 11829 E Trent Ave, Spokane 99206 | (509) 892-1000 |
| Kmc Controls 8606 E Frederick Ave, Spokane 99212 | (509) 928-3143 |
| Rockwell Automation 201 E Augusta Ave, Spokane 99207 | (509) 325-8126 |
| Siemens Building Technologies 12406 E Desmet Ave A, Spokane 99216 | (509) 891-9070 |
| Standard Plumbing Heating Corp 10419 E Trent Ave, Spokane 99206 | (509) 922-1717 |