Trade ShowDesignColumbus 2019 showcases the latest in innovative products and services. Join us at COSI to learn, network, do business and participate in one of the greenest and most sustainable Expos in Central Ohio. The Expo opens at 8:00 am and stays open all day. Join your colleagues on the Expo floor to network and enjoy food and beverages during the 5:00 pm Happy Hour on the Expo Floor.