A
- Abertillery Youth Drama and Music Society in Abertillery Blaenau Gwent
B
- Borealis: A Chamber Choir for the North in Wakefield West Yorkshire
C
- Cambridge Theatre Company in Cambridge Cambridgeshire
- CAST Theatre Company in Colnbrook Berkshire
- Cast98 Entertainment in Athens Georgia
D
- DiploMattOnline in Glasgow North Lanarkshire
E
F
G
- GADA Studios in Gibraltar Greater London
H
I
J
- JH Productions in Belfast Antrim
K
- Kristian Thomas Company; LTD in Derby Nottinghamshire
L
M
- Most Curious Productions in Brighton &Hove East Sussex
N
O
P
Q
R
- Rickmansworth Players in Rickmansworth Hertfordshire
S
- Simply Theatre in Godalming Surrey
- St James' Players in Preston Lancashire
- STAMP Studio in South Shields Tyne & Wear
- Star-Struck Theatre Company in Wolverhampton West Midlands
- Star-Struck Theatre Company in Wolverhampton West Midlands
- Stickman Productions in Southampton Hampshire
T
- Taxi Man Productions in London Greater London
- The ESNA Players in Loughborough Leicestershire
- The Young Theatre in Bourne End Buckinghamshire
U
V
W
- Warts and All Theatre in Northampton Northamptonshire
- WOPA in Oxford Oxfordshire