Interstate Office Partitions, Inc. (IOP) is a recognized leader in the installation of office furniture and systems. Established in 1981, IOP is one of the largest union office services companies in New England. Our projects range from multi-million dollar building renovations to minor reconfigurations and installations. Projects range from 1 to 5,000 workstations and include every business segment from Banking and Financial Services to Insurance, Healthcare and Law Firms. A unit of specialized craftsmen service the hotel industry.