Operational since 1983, Spectrum Controls is a provider of hardware and software related products for the industrial controls marketplace. Based in Bellevue, Wash., the company s products consists of three main categories: I/O modules, human-machine interfaces and communications devices. Some of its products include Allen-Bradley Compatible I/O, FieldPort I/O and Communications and Honeywell Experion PKS I/O. The company serves various industries, such as oil/petrochemical, food/beverage and biopharmaceuticals. Spectrum Controls clients include Fortune 500 companies, government agencies and other manufacturers of industrial controls products.