AZZ Bus Systems represents 60 years of experience serving the medium voltage power distribution market. We offer a wide range of custom engineered bus systems and related products, and also provide installation, repair, preventive maintenance, and emergency response services. The only manufacturer with a full-service offering, AZZ is the premier partner for turnkey bus system installations. Covering a wide range of applications and environments, AZZ's engineered installation services are backed by a proven system and component design that are recognized as industry leaders. Previously known as The Calvert Company, Inc., AZZ Bus Systems is a wholly owned subsidiary of AZZ Inc.