About Kellen Kellen is a global management and communications company serving more than 125 trade associations, professional societies, and charitable organizations representing over 10,000 companies and 100,000 professionals worldwide. We specialize in management, communications, digital strategy, meetings and events, and consulting across a diverse range of industries. Founded in 1964 and charter-accredited through the AMC Institute, Kellen has offices in Atlanta, Beijing, Brussels, Chicago, New York City, and Washington, DC. General Purpose of Position Following Kellen Best Practices, the Tradeshow and Sponsorship Sales Administrator plans an integral part for the sponsorship and exhibition sales department by providing ge