| Business | Phone |
| Bank Midwest Insurance Svc 500 6th St, Armstrong 50514 | (712) 864-3122 |
| N Iowa Insurance 507 6th St, Armstrong 50514 | (712) 868-3580 |
| North Iowa Insurance 506 6th St, Armstrong 50514 | (712) 864-3580 |
| Northstar Agency 403 S 4th Ave, Armstrong 50514 | (712) 362-2606 |