Billabong International Limited is an Australian company focused on surfing, primarily a clothing retailer that also produces accessories, such as watches and backpacks, and skateboard and snowboard products under other brand names. Founded in 1973 by Gordon and Rena Merchant, the company first traded on the Australian Securities Exchange in August 2000. The name "billabong" is derived from the Wiradjuri word bilabaŋ that refers to a "creek that runs only during the rainy season". As of September 2013, Von Zipper, and Element were two of the prominent brands that Billabong owns. Honolua Surf Company, Kustom, Palmers Surf, Xcel, Tigerlily, Sector 9, and RVCA were the company's other brands.In 2018, Billabong International Limited was acquired by Boardriders, Inc, owner of rival brand Quiksi