Founded in 1975, Callison is a global architecture firm and a part of the ARCADIS global network, specializing in the retail, mixed-use, corporate, hospitality, healthcare, multifamily residential, mission critical and high-rise markets worldwide. With more than 1000 employees and eleven offices on three continents—Beijing, Dallas, Dubai, Guangzhou, London, Los Angeles, Mexico City, New York, Scottsdale, Seattle, Shanghai—Callison is one of the largest design firms based in the United States. In 2014 the company was ranked #15 out of 300 top firms by Architectural Record and #1 in retail by Building Design + Construction. Callison offers a comprehensive sustainable design tool for commercial and retail projects, Matrix by Callison, www.matrix.callison.com, which is now free to the public. For more information, visit www.callison.com.