Arthur J. Gallagher in February 2018 acquired Sioux Falls, South Dakota-based Williams Insurance Agency. Founded in 1967, Williams Insurance Agency offers property/casualty, life, health and voluntary benefits coverages to businesses and individuals primarily across South Dakota. Greg Heineman, Timothy Donohue, Dwight Vondra and their associates will continue to operate from their current location. They will report to Patrick M. Gallagher, head of Gallagher’s Midwest retail property/casualty brokerage operations, and