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
Matthew Revell-Griffiths Ltd
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