Proco Products, Inc. is an internationally recognized leader in the design and manufacture of expansion joints for piping and ducting systems. Founded in 1984 and headquartered in Stockton, California, Proco Products Inc. has developed a comprehensive product portfolio to meet a variety of applications. The company has a team of experienced experts who design and test products for quality and safety. With an estimated annual revenue of $8 million, Proco Products Inc. employs over 29 people in the Stockton headquarters