According to our records, this business is located at 125 S Wacker Dr Ste 500 in Chicago (in Cook County), Illinois 60606, the location GPS coordinates are: 41.8796992 (latitude), -87.6364526 (longitude). Arthur J Gallagher & Co is categorized under Insurance Companies (SIC code 6411). Known organization manager is Phil Morton. You can contact the company by phone at (312) 704-0100.