He first arrived at Definition 6 in Spring 2000, after spending over five years with Miller/Zell Inc., an integrated store development agency that offers services ranging from branding and design to retail traffic flow and plannogramming to production and strategy work. While at Miller/Zell, Thornton worked with companies like Wal*Mart and ExxonMobil, both domestically and internationally, to reinvent the retail experience they provide their customers and ensuring the experience stayed true to the brand.

Since coming to Definition 6, Chris has worked with many of the clients of Definition 6 to provide these companies a fully integrated strategic approach to interactive Marketing with quantifiable and measurable results. Chris currently serves on the Board for the Atlanta Interactive Marketing Association as the Marketing and Branding Chair.