CIB is a worldwide network of more than 3,000 experts from 95 organisations focused on all aspects of research and innovation in building and construction.

CIB Members are institutes, companies and other types of organisations involved in research or in the transfer or application of research results. Member organisations appoint experts to participate in CIB Commissions.

CIB is the acronym of the abbreviated French (former) name: “Conseil International du Bâtiment” (in English: International Council for Building). In 1998 the abbreviation was kept but the full name changed to the International Council for Research and Innovation in Building and Construction.

ECCS is the ONLY organisation which brings together the Steel Industry, the Fabricators and Contracting specialists, and the academic world through an international network of construction representatives, steel producers, and technical centres.

ECCS is a federation of 18 national associations of steel constructors as full members. it gathers also associate and supporting members, and since recently company members. This will help a closer cooperation with upstream and downstream players such as architects, civil engineers and companies related to steel construction to seat around the table for the benefit of the whole industry and to enhance discussions between researchers and the industry.

The fib, Fédération internationale du béton, is a not-for-profit association formed by 42 national member groups and approximately 2'500 corporate and individual members in more than 100 countries. The fib’s mission is to develop at an international level the study of scientific and practical matters capable of advancing the technical, economic, aesthetic and environmental performance of concrete construction.

The knowledge developed and shared by the fib (fib Bulletins, fib events, fib workshops, fib courses, etc.) is entirely the result of the volunteer work provided by the fib members.

The International Association for Bridge and Structural Engineering (IABSE) is a scientific / technical Association comprising members in 100 countries. Founded in 1929 it has its seat in Zurich, Switzerland. 

IABSE deals with all aspects of structural engineering: the science and art of planning, design, construction, operation, monitoring and inspection, maintenance, rehabilitation and preservation, demolition and dismantling of structures, taking into consideration technical, economic, environmental, aesthetic and social aspects. The term 'Structures' includes bridges, buildings and all types of civil engineering structures, composed of any structural material.

International Association for Shell and Spatial Structures (IASS), founded by Eduardo Torroja in 1959, is a non-profit organization.

It has as its goal the achievement of further progress through an interchange of ideas among all those interested in lightweight structural systems such as lattice, tension, membrane, and shell structures, in particular architects, engineers, builders and academics.

The Association welcomes to membership all individuals and organizations who share its aims.

The International Union of Laboratories and Experts in Construction Materials, Systems and Structures (RILEM, from the name in French) was founded in June 1947, with the aim to promote scientific cooperation in the area of construction materials and structures.

Today, the new meaning of the acronym RILEM (Réunion Internationale des Laboratoires et Experts des Matériaux, systèmes de construction et ouvrages) emphasises its dominant focus on people as well as its worldwide activities, covering 90 countries.