Arthur J. Gallagher & Co. (NYSE:AJG) acquired Adco General Corporation from Richard, Alexander and Mark Thomas on January 19, 2017. Richard, Alexander and Mark Thomas will continue to operate from their current location under the direction of Joel Cavaness, President of Risk Placement Services, Inc., a subsidiary of Arthur J. Gallagher & Co. Arthur J. Gallagher & Co. (NYSE:AJG) completed the acquisition of Adco General Corporation from Richard, Alexander and Mark Thomas on January 19, 2017.