Group Line are ATGtickets sister company and cover ATG's West End venues and many more.
The Regional Groups Team covers all of ATG's other venues. These are:
| Alexandra, Birmingham | Aylesbury Waterside Theatre | Bristol Hippodrome |
| Edinburgh Playhouse | King's Theatre, Glasgow | Theatre Royal, Glasgow |
| Grand Opera House, York | Leas Cliff Hall, Folkestone | Liverpool Empire |
| Milton Keynes Theatre | New Theatre, Oxford | New Victoria Theatre, Woking |
| New Wimbledon Theatre | The Opera House, Manchester | Palace Theatre, Manchester |
| Princess Theatre, Torquay | Regent Theatre, Stoke | Victoria Hall, Stoke |
| Richmond Theatre | Stockton Globe | Sunderland Empire |
| Swansea Arena | Theatre Royal, Brighton | Granville Theatre, Ramsgate |