William B. Karst

The American Institute of Architects operates as a professional association of architects. It provides support services for architects who wants to continue education experience and maintain their licensure; web-based resources; and conducts market research and provides analysis of the economic factors that affect the business of architecture. The company was founded by Richard Upjohn, H. W. Cleaveland, Henry Dudley, Leopold Eidlitz, Edward Gardiner, Richard Morris Hunt, J. Wrey Mould, Fred A. Petersen, J. M. Priest, John Welch, Richard Upjohn Jr., Charles Babcock, and Joseph C. Wells on February 23, 1857 and is headquartered in Washington, DC.

Callison, LLC, provides architecture and design services for retail, corporate, hospitality and residential markets. It provides brand experience, real estate strategy, graphic design, master planning, and program management services. The firm has operations in New York, California, Texas, the United Kingdom, China and Mexico. The company was founded in 1975 and is headquartered in Seattle, WA