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American Trust Insurance has been a local, trusted insurance solution since 2004, founded in Huron and expanding into ten locations across eastern South Dakota.

December 1, 2004
ATI officially formed

January 1, 2005
Acquisition of Jim Long & Associates, Huron

February 1,  2006
Acquisition of Montgomery Agency, Huron

February 1, 2007
Acquisition of Rogers Agency, Huron

July 1, 2007
Acquisition of Flanagan Agency, Huron

January 1, 2008
Acquisition of Stoudt’s Insurance Agency, Watertown

January 1, 2011
Acquisition of American Agency, Mellette

October 1, 2012
Acquisition of Mansfield Insurance Agency in Mansfield -moved business to Mellette

Opened Pierre office

January 1, 2015
Acquisition of American Agency, locations in Wessington Springs, Wolsey and Alpena

Acquisition of Meyer Insurance Agency in De Smet

June 1, 2017
Opened Sioux Falls office

February 1, 2018
Acquisition of Hand County Insurance Agency in Miller

January 1, 2021
Acquisition of Hawley Insurance Services, Brookings