| Business | Phone |
| Blue Cross & Blue Shield 202 3rd Ave Nw, Sidney 59270 | (406) 488-4366 |
| Cal Oraw Insurance 108 3rd St Sw, Sidney 59270 | (406) 482-1312 |
| State Farm Insurance 919 Lincoln Ave S, Sidney 59270 | (406) 482-3115 |
| Thrivent Financial 1050 S Central Ave, Sidney 59270 | (406) 433-6143 |
| Thrivent Financial-Lutherans 1050 S Central Ave, Sidney 59270 | (406) 433-1770 |
| Seitz Insurance 114 2nd Ave Se, Sidney 59270 | (406) 433-1411 |
| Sidney Insurance-Aim Ltd 609 S Central Ave # 16, Sidney 59270 | (406) 482-1606 |
| Dennis Insurance 111 2nd Ave Sw, Sidney 59270 | (406) 488-7410 |
| Dennis Insurance & Investments 410 S Central Ave, Sidney 59270 | (406) 488-7410 |
| Prudential Insurance Co 113 W Main St, Sidney 59270 | (406) 488-5840 |
| Richland Farm Mutual Insurance 1405 4th St Sw # 1, Sidney 59270 | (406) 488-4898 |
| Rick Saboe Insurance 811 S Central Ave, Sidney 59270 | (406) 482-1377 |
| Farm Bureau Insurance 804 S Central Ave, Sidney 59270 | (406) 433-4416 |
| Farmers Union Insurance 120 2nd St Ne, Sidney 59270 | (406) 433-3010 |
| New York Life Insurance Co 1219 9th Ave Sw, Sidney 59270 | (406) 482-4061 |
| Nicholson Insurance 160 North Dr, Sidney 59270 | (406) 433-4575 |
| Health Term Life & Annunities 637 11th St Se, Sidney 59270 | (406) 482-1322 |