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The Swiss Katadyn Group is the global Number One in the field of individual water treatment systems and products, with a global market share exceeding 50 percent. Katadyn has been developing water filters, sterilizing agents, and mobile desalinators for travel and marine applications for over 75 years. Numerous international relief organisations and special army units rely on Katadyn products as survival and lifesaving tools.

Katadyn is additionally diversified in the outdoor market with three of its own brands: "PharmaVoyage" first-aid solutions for trips and "Trekking-Mahlzeiten" freeze-dried specialty foods. At the end of 2007, Katadyn acquired Optimus, maker of outdoor stoves and accessories. Katadyn is headquartered in Wallisellen-Zurich, Switzerland, and operates affiliates in Germany, France, the U.S.A., and Singapore.