| Business | Phone |
| Wells Fargo Bank 101 2nd Ave Sw, Sidney 59270 | (406) 433-2321 |
| Stockman Bank 101 S Central Ave, Sidney 59270 | (406) 433-8600 |
| Farm Credit Svc 123 N Central Ave, Sidney 59270 | (406) 433-3920 |
| First Bank 120 2nd St Nw, Sidney 59270 | (406) 433-3212 |