Arthur J. Gallagher & Co. has acquired wholesale broker and managing general agency Adco General Corp.

The Denver-based agency provides a broad range of commercial property, liability, professional and transportation coverage to its retail broker clients throughout the U.S.

Adco General's President and owner Richard Thomas, COO and principal Alexander Thomas, and CFO and principal Mark Thomas will continue to operate from their current location and report to Joel Cavaness, president of Arthur J. Gallagher's subsidiary Risk Placement Services Inc.