Founded in 1990, Challs has been developing household cleaning products for 30 years. With an ever-growing portfolio of leadi ... ng and innovative brands, Challs successfully continue to change the way we clean. Challs' portfolio of leading brands includes Buster®, Bin Buddy®, Knaus®, ALKIMI® and Max®. These products are sold internationally by major retailers. Challs also offers an own label and contract manufacturing facility through partner Primo Manufacturing. The Challs brands are found in millions of homes and businesses in 11 countries that span the continents. read more