Celsion Corporation, a biotechnology company, engages in the development and commercialization of treatment systems for the treatment of cancer and other diseases in the United States. It develops and commercializes oncology drugs, including tumor-targeting treatments using focused heat energy in combination with heat activated drug delivery systems. The company was founded in 1982 as Cheung Laboratories and changed its name to Celsion Corporation. Celsion Corporation is based in Columbia, Maryland.