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We are licensed in the following States/Provinces: Illinois, Missouri.

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About Us

Our agency goal is to always present you with the best value possible for your insurance dollars. As independent agents we represent many outstanding companies.

We have 6 agents to assist you.


Bill Siebert
Mark Siebert
Fran Siebert-Alferman
Karen Siebert
Vicki Niederreitter
Ashley LaChance



Agency Awards and Accomplishments

  • Siebert Agency has achieved the number one new business production award from AAA for several years.

  • The agency has won the Outstanding Quality Service Award by American States.

  • The agency received the Prestigious Masters Award by Maryland Casualty.

  • Bill received the 2008 Nationwide Leadership Award through Travelers Insurance.

  • Bill has served on the John Trumbull board for Hartford Insurance.

  • Bill has participated in a market training video for Maryland Casualty/Zurich for new agents to the company.

  • Fran is a Certified Insurance Counselor (CIC).

  • Mark is a member of the Fenton Chamber of Commerce.


Contact Us
For your convenience we are open Monday through Friday from 8:30 a.m. to 5:00 p.m. We also have evening hours available by appointment.

You may contact us at the following address, phone, fax number:

Siebert Insurance Agency
520 Gravois
Fenton, MO 63026
St. Louis County
United States

Phone: 636.343.1000
Fax Number: 636.343.9580

or you may email us.


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