Hackney Empire
HA Events
Hammond Family Pantomimes
Harlow Playhouse
Harrogate Theatre Company
Hawthorne Productions
Hiss and Boo
Horsecross Arts
Hot Rock Productions
Howden Park Centre
Hoxton Hall
Ian Dickens in association with Lincoln Repertory Company
Imagine Theatre
Immersion Theatre
Insideout Theatre Productions
Interior Designers Pantomime
International Shows
James and Murphy Productions
Jamie Marcus Productions
Jermin Productions