| Business | Phone |
| Comtec Sound & Detection Inc 611 E 12th Ave # 101, Anchorage 99501 | (907) 272-5518 |
| Engineered Fire Systems Inc 3138 Commercial Dr, Anchorage 99501 | (907) 274-7974 |
| Integrated Systems Group 5730 B St, Anchorage 99518 | (907) 569-3473 |
| Yukon Fire Protection Svc 5601 Silverado Way, Anchorage 99518 | (907) 563-3608 |