Private company
US architecture, planning and engineering firm
Cordogan Clark & Associates (CCA) is an architecture, planning and engineering firm based in Illinois with offices in Chicago, Aurora, Illinois, and Lafayette, Indiana. The firm was founded in 1951 by Louis Cordogan. John Cordogan joined the firm in 1981 and in 1984, he and John Clark became founding partners of Cordogan, Clark & Associates.2 Wikipedia text CC BY-SA 4.0
Last updated Oct 21, 2026.
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Cordogan Clark & Associates (CCA) is an architecture, planning and engineering firm based in Illinois with offices in Chicago, Aurora, Illinois, and Lafayette, Indiana. The firm was founded in 1951 by Louis Cordogan. John Cordogan joined the firm in 1981 and in 1984, he and John Clark became founding partners of Cordogan, Clark & Associates. In February 2016, it was announced that Cordogan Clark & Associates merged with Lafayette-based firm Keystone Architecture, Inc.2
Louis C. Cordogan Architects (1951 - 1984)
Louis C. Cordogan, Principal (1951 - 1984)
John G. Cordogan, Principal (1981 - Present)
Cordogan Clark & Associates (1984 - Present)
John G. Cordogan, Principal (1981 - Present)
John W. Clark, Principal (1984 - Present)
From Wikipedia’s article on Cordogan Clark & Associates, shared under CC BY-SA 4.0.3
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