KNOXVILLE, Tenn. — Retail facility maintenance and janitorial service provider, Expert JMS, headquartered in Knoxville, Tenn., and NJS Indoor and Outdoor Services, headquartered in Mt. Laurel, N.J., have combined to create a leading North American provider of quality retail facility services. 

The transaction closed Tuesday, with the continuing enterprise consisting of the combined operations of Expert JMS, NJS and Advantage Janitorial Solutions, an affiliate of NJS. The newly combined entity will approach the market as Expert NJS.