Photronix, 35 Sandy Brook Rd, Burlington, MA 01803, US

Founded in 1932, Barclay Water Management is one of the oldest and largest employee-owned water treatment organizations in North America. The organization manufactures a range of specialty treatment items for controlling water chemistry in heating, cooling and power generating systems. Its manufacturing and research facilities have received an ISO 9001 certification from the International Organization for Standardization. Barclay Water Management s clients include high-tech manufacturing plants, co-generation and correctional facilities, colleges and universities, hospitals and medical centers, military bases and commercial office buildings. The company s products are used in boilers, chillers, cooling towers, process heat exchangers and piping systems. Barclay Water Management offers laboratory analysis services for water and deposit samples.