The American Planning Association (APA) is a professional organization representing the field of city and regional planning in the United States. The APA was formed in 1978 when two separate professional planning organizations merged. 

It's main function is to serve as a forum for the exchange of ideas between people who work in the field of urban and regional planning.

The organization was established in 1989 when the Houston Chamber of Commerce, the Houston Economic Development Council, and the Houston World Trade Association merged. GHP's roots extend to the original Houston Chamber of Commerce's creation in 1840.

GHP's mission is to be the primary voice of Houston's business community and build regional economic prosperity. GHP routinely hosts events that bring national and international figures together to discuss key economic and policy issues.