DESCO is an underwater diving equipment maker which was first organized in 1937 in Milwaukee, Wisconsin as Diving Equipment and Salvage Co. It was founded by: * , a diver who lived in Milwaukee. In the early 1930s he had national publicity for his salvage operations on a sunken steamship, the . * John D. Craig, a Hollywood movie producer, a pioneer in underwater photography, who wanted to film the possible salvage of the RMS Lusitania. * , a diver. * , a physician who worked in hyperbaric medicine. In World War II DESCO made hardhat diving gear and oxygen rebreathers for the US Navy.