| Shepherds Bush Empire | 0870 771 2000 | | Shepherds Bush Green, London, W12 8TT |  Map & Directions |
| Image Theatre Co | 020 8743 9380 | | 23 Sedgeford Road, London, W12 0NA | | Map & Directions |
| Q2q Production Solutions | 0870 950 5727 | | Lyric Theatre, Shaftesbury Avenue, London, W1D 7ES | | Map & Directions |
| Queen's Theatre | 020 7494 5040 | | 51 Shaftesbury Avenue , London, W1D 6BA | | Map & Directions |
| Theatrical Costumiers | 020 8749 2100 | | 28-29 Eastman Road, London, W3 7YG | | Map & Directions |
| R D F Management | 020 7013 4100 | | Abingdon House, Avonmore Road, London, W14 8TS | | Map & Directions |
| Shepherd Management Ltd | 020 7499 7534 | | 45 Maddox Street, London, W1S 2PE | | Map & Directions |
| Yellow Earth Theatre | 020 7734 5988 | | 18 Rupert Street, London, W1D 6DE | | Map & Directions |
| Stuart Learmonth | 020 8749 3100 | | Unit 24, Acton Park Industrial Estate , The Vale, London, W3 7QE | | Map & Directions |
| Jeremy Hicks Associates | 020 7636 8008 | | 11-12 Tottenham Mews, London, W1T 4AG | | Map & Directions |
| Ann Zahl | 020 7724 3684 | | 57 Great Cumberland Place, London, W1H 7LJ | | Map & Directions |
| Ashton Hinkson Casting | 020 7580 6101 | | 1-3 Charlotte Street, London, W1T 1RD | | Map & Directions |
| Julian Belfrage Associates Ltd | 020 7287 8544 | | Adam House, 14 New Burlington Street, London, W1S 3BQ | | Map & Directions |
| Johnson Whiteley | 020 7348 0163 | | Flat 12 Argyll Mansions, Hammersmith Road, London, W14 8QG | | Map & Directions |
| The Canal Cafe Theatre | 020 7289 6056 | | Bridge House, Delamere Terrace, London, W2 6ND | | Map & Directions |
| The Casting Couch | 020 8964 4043 | | 222 Kensal Road, London, W10 5BN | | Map & Directions |
| Rambert Dance Co | 020 8994 2366 | | 94-96 Chiswick High Road, London, W4 1SH | | Map & Directions |
| Hobson's Actors | 020 8995 3628 | | 62 Chiswick High Road, London, W4 1SY | | Map & Directions |
| Matthew Townshend | 020 8563 1085 | | 20 Skelwith Road , London, W6 9EX | | Map & Directions |
| Kenis Steve | 020 7434 9055 | | Royalty House, 72-74 Dean Street, London, W1D 3SG | | Map & Directions |
| Apollo Theatre | 020 7494 5070 | | 31 Shaftesbury Avenue , London, W1D 7EZ | | Map & Directions |
| Success Agency | 020 7734 3356 | | Second Floor Linen Hall, Regent Street, London, W1B 5TB | | Map & Directions |
| Dominion Theatre | 020 7927 0900 | | 268-269 Tottenham Court Road, London, W1T 7AQ | | Map & Directions |
| Vivien Wilde Ltd | 020 7439 1940 | | 59 Brewer Street, London, W1F 9UN | | Map & Directions |
| M W Entertainments | 020 7734 7707 | | 48 Dean Street, London, W1D 5BF | | Map & Directions |
| Southwold Summer Theatre | 01502 722389 | | 14, York House, 39 Upper Montagu Street , London, W1H 1FR | | Map & Directions |
| Markham & Froggatt Ltd | 020 7636 4412 | | 4 Windmill Street, London, W1T 2HZ | | Map & Directions |
| Theatre Online | 020 7704 1610 | | Foxglove House, 166 Piccadilly, London, W1J 9EF | | Map & Directions |
| Performing Arts | 020 7255 1362 | | 6 Windmill Street, London, W1T 2JB | | Map & Directions |
| The Gate Theatre | 020 7229 5387 | | 11 Pembridge Road, London, W11 3HQ | | Map & Directions |
| Crescent Management | 020 8987 0191 | | 10 Barley Mow Passage, London, W4 4PH | | Map & Directions |
| Gordon & French | 020 7734 4818 | | Noland House, 12-13 Poland Street, London, W1F 8QB | | Map & Directions |
| Shared Experience Theatre | 020 7434 9248 | | 9 Dufours Place, London, W1F 7SJ | | Map & Directions |
| Casting Collective Ltd | 020 8962 0099 | | Unit 5/6 Olympic House, 317 Latimer Road, London, W10 6RA | | Map & Directions |
| Sightline T P Ltd | 020 8741 3527 | | 95 Hammersmith Grove, London, W6 0NQ | | Map & Directions |
| Palladium Theatre | 020 7494 5020 | | 8 Argyll Street, London, W1F 7TF | | Map & Directions |
| Stage Entertainment Ltd | 020 7025 6970 | | 52 Poland Street, London, W1F 7LX | | Map & Directions |
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