Lyric Hammersmith
Macrobert
Made-to-Measure Productions
Magic Light Productions
Magna Vitae Productions
Majestic Productions
Make Believe Entertainment
M A Productions
Martin Witts and Lesley Ackland
Martyn Geraint
Matt Witts for London International Arts Theatre
Melabeau Productions
Mercury Theatre Colchester
Michael Courtney Productions
Middle Child
Millennium Forum Productions
Millfield Theatre
MJ Cox Productions
Mr E Management
National Theatre