Arthur J. Gallagher & Company has acquired Benefit Management Group Inc.

Gallagher, Itasca, Ill., a large insurance broker, is not saying how much it is paying for Benefit Management, Royal Palm Beach, Fla., which was founded in 1997.

Gallagher says it will keep Ken Evelyn, who has been the head of Benefit Management, and put Benefit Management under the direction of David Ziegler, the Eastern region executive vice president at Gallagher’s Gallagher Benefit Services Inc. unit.