Muller2 is an architectural firm founded in 1984 by Jay and Cindy Muller. Today, Muller2 has grown to a staff of over 50 employees, including 15 licensed architects. Major market sectors include: aviation, transit, passenger rail, recreation, education, and general municipal. Major clients currently include: the Chicago Department of Aviation, the Chicago Department of Transportation, the Chicago Transit Authority, Metra Commuter Rail, Amtrak, the Chicago Park District, Chicago’s Riverwalk, the Public Building Commission of Chicago, and Dallas/Fort Worth International Airport. Muller2 has physical offices in Chicago, Peoria, and Dallas.