| Queen's Theatre | 020 7494 5040 | | 51 Shaftesbury Avenue , London, W1D 6BA |  Map & Directions |
| Nancy Hudson & Associates Ltd | 020 7499 5548 | | 50 South Molton Street , London, W1K 5SB | | Map & Directions |
| Kenis Steve | 020 7434 9055 | | Royalty House, 72-74 Dean Street, London, W1D 3SG | | Map & Directions |
| Ann Zahl | 020 7724 3684 | | 57 Great Cumberland Place, London, W1H 7LJ | | Map & Directions |
| Jeremy Hicks Associates | 020 7636 8008 | | 11-12 Tottenham Mews, London, W1T 4AG | | Map & Directions |
| Gavin Barker Associates Ltd | 020 7499 4777 | | 2d Wimpole St, London, W1G 0EB | | Map & Directions |
| Susan Angel & Kevin Francis Ltd | 020 7439 3086 | | 12 D'arblay Street, London, W1F 8DU | | Map & Directions |
| Apollo Theatre | 020 7494 5070 | | 31 Shaftesbury Avenue , London, W1D 7EZ | | Map & Directions |
| Birmingham Stage Comany | 020 7437 3391 | | Sixth Floor, Linen Hall, 162-168 Regent Street, London, W1B 5TG | | Map & Directions |
| Finch & Partners | 020 7851 7140 | | 4-8 Heddon Street, London, W1B 4BS | | Map & Directions |
| Theatre Online | 020 7704 1610 | | Foxglove House, 166 Piccadilly, London, W1J 9EF | | Map & Directions |
| Markham & Froggatt Ltd | 020 7636 4412 | | 4 Windmill Street, London, W1T 2HZ | | Map & Directions |
| Performing Arts | 020 7255 1362 | | 6 Windmill Street, London, W1T 2JB | | Map & Directions |
| M W Entertainments | 020 7734 7707 | | 48 Dean Street, London, W1D 5BF | | Map & Directions |
| Q2q Production Solutions | 0870 950 5727 | | Lyric Theatre, Shaftesbury Avenue, London, W1D 7ES | | Map & Directions |
| Yellow Earth Theatre | 020 7734 5988 | | 18 Rupert Street, London, W1D 6DE | | Map & Directions |
| Burnett Granger Assosciates | 020 7437 8008 | | 3 Clifford Street, London, W1S 2LF | | Map & Directions |
| Shepherd Management Ltd | 020 7499 7534 | | 45 Maddox Street, London, W1S 2PE | | Map & Directions |
| Julian Belfrage Associates Ltd | 020 7287 8544 | | Adam House, 14 New Burlington Street, London, W1S 3BQ | | Map & Directions |
| Youth Music Theatre Ltd | 0870 240 5057 | | Swiss Centre, 10 Wardour Street, London, W1D 6QF | | Map & Directions |
| Stage Entertainment Ltd | 020 7025 6970 | | 52 Poland Street, London, W1F 7LX | | Map & Directions |
| Gordon & French | 020 7734 4818 | | Noland House, 12-13 Poland Street, London, W1F 8QB | | Map & Directions |
| Michelle Braidman Associates | 020 7437 0817 | | 10-11 Lower John Street, London, W1F 9EB | | Map & Directions |
| Piccadilly Theatre | 020 7478 8800 | | 16 Denman Street, London, W1D 7DY | | Map & Directions |
| Gilbert & Payne | 020 7734 7505 | | Second Floor Linen Hall, 162-168 Regent Street, London, W1B 5TB | | Map & Directions |
| Dominion Theatre | 020 7927 0900 | | 268-269 Tottenham Court Road, London, W1T 7AQ | | Map & Directions |
| Emptage Hallett Ltd | 020 7287 5511 | | 24 Poland Street, London, W1F 8QL | | Map & Directions |
| Silvester Management | 020 8958 5555 | | 122 Wardour Street, London, W1F 0TX | | Map & Directions |
| Ashton Hinkson Casting | 020 7580 6101 | | 1-3 Charlotte Street, London, W1T 1RD | | Map & Directions |
| Success Agency | 020 7734 3356 | | Second Floor Linen Hall, Regent Street, London, W1B 5TB | | Map & Directions |
| Southwold Summer Theatre | 01502 722389 | | 14, York House, 39 Upper Montagu Street , London, W1H 1FR | | Map & Directions |
| Pemberton Associates Ltd | 020 7734 4144 | | 193 Wardour Street, London, W1F 8ZF | | Map & Directions |
| Simpson Fox Associates | 020 7434 9167 | | Shaftesbury Mansions, 52 Shaftesbury Avenue, London, W1D 6LP | | Map & Directions |
| Palladium Theatre | 020 7494 5020 | | 8 Argyll Street, London, W1F 7TF | | Map & Directions |
| Vivien Wilde Ltd | 020 7439 1940 | | 59 Brewer Street, London, W1F 9UN | | Map & Directions |
| Shared Experience Theatre | 020 7434 9248 | | 9 Dufours Place, London, W1F 7SJ | | Map & Directions |
| Advoice | 020 7323 2345 | | Oxford House, 76 Oxford Street, London, W1D 1BS | | Map & Directions |
| The Casting Couch | 020 8964 4043 | | 222 Kensal Road, London, W10 5BN | | Map & Directions |
| Stuart Learmonth | 020 8749 3100 | | Unit 24, Acton Park Industrial Estate , The Vale, London, W3 7QE | | Map & Directions |
| Matthew Townshend | 020 8563 1085 | | 20 Skelwith Road , London, W6 9EX | | Map & Directions |
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