According to our records, this business is located at P.O. BOX 371 in Collinsville (in Madison County), Illinois 62234, the location GPS coordinates are: 38.6703266 (latitude), -89.9845476 (longitude). Henze Wlliam C Consulting Services is categorized under Computer Code Authors (SIC code 7371). Known organization president is William Henze. You can contact the company by phone at (618) 345-3070.