The company is among the most prolific theatre producers in the world with co-productions in the UK, New York, across North America, Europe, Asia and Australia.

The company was founded and run by the husband-and-wife team of Sir Howard Panter and Dame Rosemary Squire OBE, who topped The Stage 100 list of prominent UK theatre personalities from 2010 to 2016.

[9] ATG's business model involves the combination of theatre ownership with production management, marketing and ticket operations.

ATG's portfolio of 10 West End theatres include the Ambassadors, Apollo Victoria, Duke of York's, Fortune, Harold Pinter, Lyceum, Phoenix, Piccadilly, Playhouse, and Savoy.

[11] ATG also has UK regional theatres in Aylesbury, Birmingham, Brighton, Bristol, Edinburgh, Folkestone, Glasgow, Liverpool, Manchester, Milton Keynes, Oxford, Richmond, Sunderland, Stoke-on-Trent, Stockton on Tees, Torquay, Wimbledon, Woking and York.

This acquisition includes the August Wilson, the Walter Kerr, the Eugene O'Neill, the Al Hirschfield, and the St. James Theatre.

ATG is the majority shareholder of BB Group,[17] One of the leading producers and promoters of premium live entertainment in Europe, with a particular strength in touring musicals and dance productions throughout Germany, Austria and Switzerland.

BB Group productions include West Side Story, We Will Rock You, The Rocky Horror Show, Cats, Alvin Ailey American Dance Theater and Ballet Revolución, The Lion King and The Bodyguard.

Recent SFP West End and Broadway theatre productions and co-productions include the UK premiere of The Book of Mormon, Jez Butterworth's The River on Broadway, starring Hugh Jackman; The Nether, Bend It Like Beckham: the Musical, Hamlet, starring Benedict Cumberbatch; Electra, King Charles III, Sunny Afternoon, Shakespeare in Love, Jerusalem, Ghosts, Mojo, Chimerica, Twelfth Night, Richard III and Old Times.

Recent ATG productions on Broadway include The Mountaintop, starring Samuel L Jackson and Angela Bassett; Exit the King, starring Geoffrey Rush and Susan Sarandon; and John Doyle's production of Stephen Sondheim's Sweeney Todd: the Demon Barber Fleet Street.

When London and Edinburgh Trust was sold before the Woking development was completed in 1992, a structure was set up that allowed Panter and Squire to continue to run the theatre.

In February 1992 ATG bought the Duke of York's Theatre from Capital Radio, with significant support from Kulukundis.

Expansion required the involvement of larger corporate investors including AREA Property Partners[23] and Carlton Television.

[26] Coinciding with the expansion, former BBC director general Greg Dyke joined ATG in a new role of executive chairman.

Exponent retains a minority stake in ATG as part of the deal and continues to work with Providence and the existing management team including Joint CEO's and co-founders Sir Howard Panter and Rosemary Squire OBE.