APEX Construction Systems, Inc. was founded in Portland, OR to perfect our original Hungarian-born EPS-Cement blend block. Since early 2003, and with the recent opening of our state-of-the-art manufacturing plant in Phoenix, AZ , we have been providing U.S. homeowners, builders, architects, designers, and engineers with a greener, smarter, and faster solution for building homes, commercial structures, mixed-use properties and schools.