Worldsteel - Global steel information (IISI) , Belgien
Modern Steel Construction- pdf magazine (AISC) , U.S.A.
American Institute of Steel Construction, U.S.A.
Bouwen met Staal, The Netherlands
European Convention for Constructional Steelwork (ECCS), Belgium
International Society of Offshore and Polar Engineers (ISOPE), U.S.A.
LSS-Softwarelösungen für das Bauwesen, Germany
Österreichischer Stahlbauverband, Austria
Instituto para la Construcción Tubular, Spain
The Steel Construction Institute (SC3), UK
The Canadian Institute of Steel Construction (CISC), Canada
American Welding Society (AWS), U.S.A.
Australian Steel Institute (ASI), Australia