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100+ years of being 100% focused on your insurance needs.

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Stammen Insurance has a storied history of service and dedication to our clients over the past century. Be a part of our next chapter.

More than a century of service and commitment.

A tradition of successful services since 1919 can only come by moving with the times. Founders Pete Stammen and C.A. Stubbs originally founded their agencies with a common goal of providing quality customer service. Today, Stammen Insurance continues to live up to that common goal with an ongoing commitment to our clients and community.


Years of Commitment to Our Clients


Qualified Insurance Carriers to Choose


Locations for Simple, Personalized Service


Focused on Managing Your Risks

The history of Stammen Insurance.

Pete Stammen started his agency in 1953, and C.A. Stubbs founded his agency in 1919. In August of 1993, Paragon Insurance Agency was purchased and Stammen-Paragon Insurance Agency was created. In May 2016, Stammen Insurance expanded the business through the purchase of the Ruppert Insurance Agency. Chuck, Bill, and Mark Stammen sold the agency in May of 2017 to Cody Muhlenkamp, Josh Schmackers, and Jason Stover. In 2018, Stammen Insurance expanded its operational footprint by opening a branch office in Coldwater, OH. August 2020 included a partnership with CareSurance for Medicare and Individual Health Insurance services. Now, with four office locations across Ohio, we are here to serve your needs locally and beyond as we have for over 100 years.

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An Award-Winning Agency

Since 1919, the heart of our business has been helping our clients protect their family, loved ones, and the things that matter most to them.

Why Go Independent?

2022 Erie Giving Agency of the Year

Celina Insurance Group 2017 Master Agency of the Year

Cincinnati Insurance Excellence Award

Donegal – Regional Top 25 in Growth

Erie Founders Award

Motorist Pacesetter Award

Committed to Our Community

Here are the local organizations we take pride in supporting.

  • Celina-Mercer County Chamber of Commerce
  • Celina Rotary Club
  • Coldwater Chamber of Commerce
  • Knights of Columbus
  • Mercer Health MED Foundation
  • MAV Youth Mentoring
  • Mercer County Elks
  • St. Henry Athletic Boosters
  • St. Henry Chamber of Commerce
  • St. Henry Community Club
  • St. Henry Knights of Columbus
  • St. Henry Heritage Club
  • St. Henry School Board
  • St. Mary’s Chamber of Commerce
  • St. Mary’s Kiwanis
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Insurance Designed for Your Needs

Stammen Insurance has four offices across Ohio, and we are proud to serve clients locally, in Indiana, and across 10 other states we’re licensed in. Get in touch with us today to get started.

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  2. Step 2Review your options with us.
  3. Step 3Get the coverage you need.

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