Delegates from the following companies have attended NCTJ one day courses:
- Associated Press
- Cambridgeshire Constabulary
- Cambridge Office of Tourism
- CAMRA
- Chelsea Magazines
- Eastern Daily Press
- Euromoney Institutional Investor
- Evening Standard
- FWD PR
- Home Office
- Independent on Sunday
- Leeds University Union
- Ministry of Justice
- National Policing Improvement Agency
- Nottinghamshire Police
- Nottingham Post
- Oldham Evening Chronicle
- Orion Media Ltd
- The Guardian
- The Press, York
- The Yacht Report Group
- Transport for London
- UBM
- Redwood
- Warners Group Publications
