Starbright Entertainments
STLO Productions
Strictly Productions
Stuart Morrison Productions
Stuart Morrison's Second Star Productions
Succour Punch Theatre
Such Stuff Productions
Sutton Theatres
TA-DA Productions
Talegate Theatre
Talent Artistic Group (TAG)
Tara Arts
Tastic Entertainment
Telling Tales
Ten98 Entertainment
That's Entertainment Productions
That's Good That Is
The Academy Theatre
Theatr Clwyd