Call Us Today:
800.688.5295

About Our Agency

As a locally owned and operated insurance agency in Grundy County, Iowa, GNB Insurance is committed to providing quality insurance products for individuals and businesses. We combine our strong insurance background and product knowledge to assist both current and future clients manage and plan for all types of potential risk.

Our team of knowledgeable insurance professionals is experienced in creating personal and commercial insurance policies designed to fit your needs. With GNB Insurance, our friendly staff will work with you on a one-on-one basis to develop not only the perfect policy, but a lasting relationship.

When you work with GNB Insurance, you'll experience the personal service and attention to detail that you can only find with an independent insurance agency.

Our Locations

GNB Insurance Grundy Center

603 7th Street
Grundy Center, IA 50638
Main office: 319-825-5295
Toll free: 800-688-5295

GNB Insurance Ackley

646 Main Street
Ackley, IA 50601
Main office: 641-847-3541
Toll free: 800-864-4689

GNB Insurance Conrad

125 N Main Street
Conrad, IA 50621
Main office: 641-366-2280

GNB Insurance Iowa Falls

315 Main Street
Iowa Falls, IA 50126
Main office: 641-648-6689
Toll free: 855-268-7323

GNB Insurance Marshalltown

2504 S 2nd Street
Marshalltown, IA 50158
Main office: 641-753-4040
Toll free: 855-493-9883

Our Providers

Testimonials

Accommodating, professional, helpful, and quick. Very comfortable experience and I was impressed by their capabilities. Highly recommended.
Brad M.
I feel lucky to have found an agent willing to provide this level of service. No need to look anywhere else!
Michelle D.
Over the years we’ve never once had to worry about our coverage. My husband and I are long-time customers and proud to be.
Carol S.
Surprisingly flexible and in-touch with my needs as a small business owner. Can’t ask for more.
Spencer F.
They have strong ties with the community, and it shows. It’s nice to do business with people that really show they care about you and your family.
Susan T.