Coreslab Structures is a leading manufacturer of precast and prestressed concrete products in both Canada and the United States. It began as a small hollow-core manufacturer in Ontario, Canada in 1975. Throughout the 1970s and 80s, the company s focus shifted from hollow-core to prestressed concrete manufacturing. In 1988, the company began its expansion program into the United States. The company s Tampa, Fla., office specializes in building materials for office and educational buildings, bridges, parking structures and stadiums. Coreslab Structures operates approximately 20 additional facilities in Ontario, Connecticut, California, Arizona, New Mexico, Texas, Oklahoma, Nebraska, Kansas, Missouri, Arkansas, Indiana, Georgia, South Carolina and Florida.