- AEG Europe
- Act Productions
- Albion Media
- Ambassadors Theatre Group
- Andrew Lloyd Webber
- Andrew Treagus Associates
- Andrew Welch Ltd
- Autograph Sound Recording
- Barclays ATP World Tour Finals
- BBC Haymarket Exhibitions
- Back Row Productions
- Blue Horizon Productions
- Brian May
- British Film Institute
- British Music Experience
- Cameron Mackintosh Ltd
- Chichester Festival Theatre
- Christopher Malcolm
- Clywd Theatr Cymru
- Colin Ingram Ltd
- Danny Moar
- David Ian Productions
- David Pugh Ltd
- Delfont Mackintosh Theatres
- Disney Theatrical Productions
- English National Opera
- First Night Records
- Gaucho Polo
- Global Creatures
- IMG UK Ltd
- Imogen Lloyd Webber Productions
- Jim Steinman
- Jon Conway
- Judy Craymer Productions
- Julian Stoneman Associates
- Kevin Wallace Ltd
- Kenny Wax Ltd
- Kneehigh
- Lee Menzies Limited
- Lean Two Productions
- Lilian Hochhauser
- Littlestar Services Ltd
- London Alliance
- London Library
- Lovetheatre.com
- Magnifico Circus GmbH
- Menier Chocolate Factory
- Michael Codron Ltd
- Michael Grandage Productions
- Michael McCabe Productions
- Michael Rose Ltd
- Milton Morrissey Productions
- MJE Productions
- McCabe Smith Partnership
- National Film Theatre
- Neal Street Productions
- Nimax Theatres
- Noel Gay
- Novel Theatre
- The O2 Arena
- Paul McCartney
- Paul Nicholas & David Ian Associates
- Phil McIntyre Entertainment
- P W Productions
- Queen Theatrical Productions
- Really Useful Group Ltd
- Really Useful Theatres
- Richard Frankel Productions
- Robert Fox Ltd
- Royal Shakespeare Company
- Sacha Brooks
- Scott Rudin Productions
- Semmel Concerts
- Society of London Theatre
- Society of Ticket Agents and Retailers
- Sonia Friedman Productions
- Stage Entertainment UK Limited
- St. James Theatre
- Tali Pelman Productions
- Thelma Holt Ltd
- The Entertainment Business Ltd
- The Last Horseman S.L
- The Marquess of Cholmondeley
- The Weinstein Company
- Tristan Baker Productions
- Universal Music
- Vaktangov Theatre Company
- VBW Kulturmanagement
- Wicked London Productions Ltd
- Woburn Enterprises Limited
