Corporate Interior Systems, a part of the Knoll dealer network, is a full-service contract furniture dealership. Operational for over 25 years, the company specializes in providing custom-workplace furniture and related products. Located in Phoenix, Ariz., the firm provides a wide range of project management, designing, reconfigurations, installation and warehousing services. Corporate Interior Systems office various furniture product from the brands like Knoll, Trendway, Sit On It, Paoli, OFS, Krug, Keilhauer, Global-The Total Office, Geiger and Evolve.