| Business | Phone |
| Bureau Of Technical Svc Po Box 191, Chippewa Falls 54729 | (715) 726-9202 |
| Chippewa Valley Investigations 817 N High St, Chippewa Falls 54729 | (715) 720-9411 |
| Ins Investigations Bureau 4393 110th St, Chippewa Falls 54729 | (715) 726-9900 |
| Knight Hawk Investigations 2029 County Highway I, Chippewa Falls 54729 | (715) 726-1400 |
| Tactical Surveillance Po Box 191, Chippewa Falls 54729 | (715) 726-8838 |