From the HES website:
Overview | Professional bodies | Trade bodies | Training organisations | Other relevant organisations
Professional bodies
Federation of Master Builders (FMB)
Telephone: 020 7025 2900
Website: www.fmb.org.uk
Health and Safety Executive
Telephone: 0300 003 1747
Website: www.hse.gov.uk
Institute of Conservation (ICON)
Telephone: 01626 824 510
Email: parc@icon.org.uk
Website: www.icon.org.uk
Institute of Historic Building Conservation (IHBC) – including Historic Environment Service Providers Recognition (HESPR)
Email: contact@ihbc.org.uk
Website: www.ihbc.org.uk
Institution of Civil Engineers (ICE)
Telephone: 01412 215 276
Email: scotland@ice.org.uk
Website: www.ice.org.uk
Royal Incorporation of Architects in Scotland (RIAS)
Telephone: 0131 229 7545
Email: info@rias.org.uk
Website: www.rias.org.uk
Royal Institution of Chartered Surveyors (RICS)
Telephone: 024 7686 8555
Email: contactrics@rics.org
Website: www.rics.org