The below links will contain helpful information from various professional institutes and societies that regulate, train and control memberships and may be required in order to deliver your project.
Royal Institute of British Architects (RIBA)
Institute of Structural Engineers
British Institue of Interior Design
Council for British Archaeology
Royal Institute of Chartered Surveyors
Association for Project Safety
The British Ecological Society
The Institue of Electrical and Electronics Engineers (IEEE)