Service is our Mission. Clean is our Statement. Jani-King is the world’s largest commercial cleaning franchise company with m ... ore than 120 support offices in 10 countries. Through a global network of over 9,000 franchisees, Jani-King delivers a superior commercial cleaning program to a wide range of customer locations including office buildings, hospitals, hotels, sporting venues, universities, restaurants, manufacturing facilities and more. Headquartered in Addison, Texas, Jani-King is consistently recognized as a global leader in Commercial Cleaning Franchises. read more