Advanced Relational Technology, Inc.
   Developers of the Chief Architect 3D architectural design software, offering technical support, training resources, and discussion forums.
   http://www.chiefarchitect.com/

Chief Architect Users
   An independent discussion mailing list for users of the Chief Architect software.
   http://groups.yahoo.com/group/chief-users/

Chief Commercial
   Provides Chief Architect compatible 3D Cad symbols of commercial equipment and furnishings. Includes online catalogs and pricing.
   http://www.chiefcommercial.com/

Chief Symbols
   Source of Chief Architect add-on symbol libraries and a user-created symbol exchange.
   http://www.chiefsymbols.com/

Design Build Technologies
   Dealer and developer for a variety of products.
   http://dbtec.com