Thorburn Associates, Inc. (TA) is a design and engineering firm specializing in the collaborative practice of Acoustically Integrated Architecture (AIR). The company, founded in 1992 by Lisa A. Thorburn, CTS, and Steven J. Thorburn, PE, CTS-D, CTS-I, maintains offices in California and North Carolina. TA provides acoustical consulting and technology system engineering to architects, facility owners, and end-users around the world.