experience the cornerstone ‘advantage’

With over 20 years of experience, American Advantage Cornerstone Insurance was built with dedication for our clients

Jeff Bergum, the principal of Cornerstone Insurance Services, LLC brings over 20 years of insurance knowledge to serve his clients. Jeff specializes in commercial insurance with a heavy focus on the trucking market. In his free time, he enjoys camping with family and friends, working on cars, attending car shows, and traveling. 

“I make my clients my family and strive daily to exceed their insurance and risk management needs. I look forward to helping you achieve and maintain an insurance program that fits your needs, perfectly.”

-Jeff Bergum

Jeff Bergum Cornerstone Insurance New London, WI

Jeff Bergum

Founder and Technical Director

Our partners

Badger Mutual Insurance at Cornerstone Insurance New London, WI
ASI at Cornerstone Insurance New London, WI
Anthem at Cornerstone Insurance New London, WI
American Collectors at Cornerstone Insurance New London, WI
AAA at Cornerstone Insurance New London, WI
Bristol West at Cornerstone Insurance New London, WI
Dean Health System at Cornerstone Insurance NL, WI
EMC Insurance at Cornerstone Insurance
First Comp at Cornerstone Insurance New London, WI
Foremost Insurance at Cornerstone Insurance
Germantown Insurance at Cornerstone New London, WI
Hanover Insurance Group at Cornerstone Insurance New London
Humana at Cornerstone Insurance
IMT Insurance at Cornerstone Insurance
Kemper at Cornerstone Insurance
Network Health New London WI
McnEil & Co at Cornerstone Insurance New London
Molina Healthcare at Cornerstone Insurance
Progressive at Cornerstone Insurance
Protective at Cornerstone Insurance
Secura at Cornerstone Insurance
Sentry Insurance at Cornerstone New London
Society Insurance at Cornerstone New London, WI
The Hartford at Cornerstone New London, WI
Travelers at Cornerstone New London, WI
United Healthcare at Cornerstone New London
US Assure Cornerstone New London, WI
West Bend at Cornerstone Insurance New London
Wright Flood at Cornerstone Insurance
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Cornerstone Insurance Family
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Auto Insurance at Cornerstone New London
Cornerstone Insurance New London, WI

Your safety is our success

Providing you with the best-in-class service and insurance products. We believe that you deserve the best possible value when you purchase insurance.

It’s About Relationships

By working with over 40 regional and national insurance carriers, we can shop around to get you the best coverage for your own situation. We get to know you or your business so that we can get you the coverage that you  need, not the coverage other companies want to give you. And as you grow, whether it’s buying a house or expanding your business, we will be there with you to make sure you always have peace of mind with your coverage.

Education Is Key

We don’t just give you a policy — we educate you on what’s available so that you understand exactly what you need. But we don’t stop there. From safe driving to home maintenance, we provide you with all the tips and tricks to protect what’s important.


  • Respect
  • Integrity
  • Clear, honest communication
  • Innovation
  • Community

At the heart of our mission lies a simple promise: to build lasting relationships with our clients, guiding them through the maze of insurance options and tailoring solutions that truly protect their unique needs.

We believe insurance is more than just a policy; it’s a journey of trust and understanding. That’s why we go beyond quotes and claims, becoming your advocate, confidante, and partner in building a secure future.

  • Putting the needs of policyholders first and foremost.
  • Provide exceptional service with empathy and a personalized approach.
  • Adhere to the highest ethical standards in all business dealings.
  • Transparency and honest communication with customers and partners.
  • Offer a variety of products and services to meet diverse needs.

Let our team save you time and money!