| The National Examination Board in Occupational Safety and Health | www.nebosh.org |
| Institution of Occupational Safety and Health | www.iosh.co.uk |
| Construction Industry Training Board | www.citb.co.uk |
| City & Guilds | www.cityandguilds.com |
| The Engineering Construction Industry Training Board (ECITB) | www.ecitb.org.uk |
| Institute of Environmental Management and Assessment (IEMA) | www.iema.net |
| British Standards Institute (BSI) | www.bsigroup.com/en-GB/ |