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Unisource Insurance Associates is your trusted independent insurance agency throughout Wisconsin including, Milwaukee, Waukesha County, Washington County and Racine County.

Your family, your business, and your possessions are all important to you, but you may not know how to better protect them. We listen to your needs in order to help you navigate the unique risks you face, serving as your independent agent.

What Sets us Apart


As an independent insurance agency we have great relationships with many well-known, reputable insurance companies, giving you the power of choice.


Our insurance advisors have years of experience in the insurance industry and serve as your advocate from selecting coverage through filing a claim.


Our insurance advisors have a strong passion for insurance and helping you protect what you value most in business and in life. We treat our customers like family.

Unisource Insurance Associates… The one source for our clients’ insurance needs.

Unisource Insurance Associates has been around since 1978. Originally founded by Paul Brunner, we remain a family owned, independent insurance agency. Moving into our 2nd generation of family ownership, we are an organization of over 25 qualified insurance professionals averaging 20+ years of experience.

We offer a suite of insurance solutions in personal, business and employee benefits, with experience in Home Insurance, Auto Insurance, Business Insurance, Life Insurance and Medicare Insurance.

Our clients include both individuals and businesses throughout Wisconsin including, Milwaukee, Waukesha County, Washington County and Racine County. Our knowledgeable and dedicated team work closely with our clients to help them make important and informed decisions every day when it comes to coverage and their future.

Because we’re independent, our priority is you – not the insurance company. We represent the finest carriers in the industry and leverage these partnerships to obtain competitive coverage, loss control, claims servicing and pricing for our clients.

Our insurance advisors make it their business to know your world inside and out. They are there to help you through all the changes in your life and your business, whether you’re going from renting an apartment to buying a home, adding a partner to your business, getting married, renovating your home, adding a teen driver to your auto policy or revamping your employee benefits plan.

A Tradition of Community Service

Paul Brunner established the agency the old fashioned way. He delivered concrete during the day and sell life insurance at night. Always focused on his family, Paul coached softball and basketball at his children’s school for over 25 years and volunteered on many school and church committees.

After 40+ years of setting the example, and in the tradition of community service and involvement, the agency today actively participates on the board of:

  • The Autism Society of Southeastern Wisconsin Dylan’s Run for Autism
  • Rotary Club of Wauwatosa
  • St. Vincent De Paul
  • Animal Rescue
  • Team Sponsorships
  • And supports many school and church related fundraising activities.
Agency Principal

Andrea Brunner-Nelson, Member of the Wisconsin Big I.


Joined forces with Central States Insurance.


Named in the Milwaukee Business Journal’s list of Largest Area Independent Insurance Agencies improving rank from 23 to18 in 2018.

At Unisource Insurance Associates, our mission is very simple. We strive to provide a true, concierge client experience which is unique in the insurance industry. We give clients the power of choice from top-rated national and regional insurance carriers. We offer comprehensive insurance solutions throughout Wisconsin including, Milwaukee, Waukesha County, Washington County and Racine County.