Located in Phoenix, Air-Zona Systems Engineering is one of the leading engineering consulting firms in the Southwest and throughout the United States. The company specializes in the fields of mechanical, electrical, plumbing, fuel systems and fire sprinkler engineering. It also offers services for heating, ventilation and air conditioning equipment. The company is staffed with skilled and experienced engineering professionals specialized in fields, such as mechanical and electrical systems, as well as petroleum, fire protection and fuel. Air-Zona Systems Engineering provides its services to various commercial and industrial customers. Its project portfolio includes Galtronics, Greek Orthodox Church, Motorola, Mesquite Corporate Center, Honeywell, Wilcox Medical Center, Hitachi and Nextel.