27 full members:-
Architects and Surveyors Institute, Association of Building Engineers, Association of Consultant Architects, Association of Consulting Engineers, Board of Incorporated Engineers and Technicians (ICE), British Flat Roofing Council, British Institute of Architectural Technologists, Building Services Research and Information Association, Chartered Institute of Building, Chartered Institute of Building Services Engineers, Construction Industry Research and Information Association, Consultant Quantity Surveyors Association, Ground Forum, Institute of Building Control, Institute of Construction Management, Institute of Clerks of Works of Great Britain, Institute of Highways Incorporated Engineers, Institute of Maintenance and Building Management, Institute of Plumbing, Institution of Civil Engineers, Institution of Civil Engineering Surveyors, Institution of Structural Engineers, Landscape Institute, Royal Institute of British Architects, Royal Institution of Chartered Surveyors, Royal Town Planning Institute, Society of Surveying Technicians.
10 associate members:-
Association of Heads of Surveying, Building Centre Trust, Building Research Establishment, Construction Industry Computing Association, Construction Industry Training Board (Northern Ireland), District Surveyors Association, Faculty of Building, Institute of Concrete Technology, Royal Incorporation of Architects in Scotland, Standing Conference of Heads of Schools of Architecture.