| Andrews Denford & Boyd | 24 Old Burlington Street Mayfair London W1S 3AW |
| BNP Paribas Real Estate | 30 Charles II Street London SW1Y 4AE |
| Brogan Danvers Gold | 174 New Bond Street London W1S 4RG |
| Carter Jonas LLP | 127 Mount Street London W1K 3NT |
| CB Richard Ellis | Kingsley House Wimpole Street London W1G 0RE |
| Colliers International | 9 Marylebone Lane London W1U 1HL |
| Core Realty | 3-4a Little Portland Street London W1W 7JB |
| Cummings Commercial | 54 Conduit Street Mayfair London W1S 2YY |
| DE & J Levy LLP | Dukes Court 32 Duke Street St James's London SW1Y 6DF |
| Drivers Jonas Deloitte | 6 Grosvenor Street London W1K 4DJ |
| Dron & Wright | 54 Conduit Street London W1S 2YY |
| DTZ | 48 Warwick Street London W1B 5NL |
| D’Arcy Soar | 19 Seymour Mews London W1H 6BG |
| E A Shaw | 9-12 Bow Street London WC2E 7AB |
| Edward Charles & Partners | 1 Marylebone High Street London W1U 4LZ |
| Egan Lawson | 9-10 Grafton Street London W1S 4EN |
| Gerald Eve LLP | 7 Vere Street London W1G 0JB |
| GVA Saxon Law | 10 Stratton Street London W1J 8JR |
| H2SO | 20 Savile Row London W1S 3PR |
| Hanover Green LLP | 24 Old Burlington Street London W1S 3AW |
| Harrison & Partners | 30 Harcourt Street London W1H 4AA |
| Hudsons Commercial | 24 Charlotte Street London W1T 2ND |
| King Sturge LLP | 30 Warwick Street London W1B 5NH |
| Mann Smith | 49 White Hall London SW1A 2BX |
| Martin Levy Commercial | 20 Hanover Square London W1S 1JY |
| Mellersh & Harding | 32 St James's Street London SW1A 1HD |
| NB Real Estate | 25 Sackville Street London W1S 3HQ |
| Otway Norwood | 5 Blenheim Street London W1S 1LD |
| REM Roberts | 22 Bruton Street London W1J 6QE |
| Savills | 20 Grosvenor Hill London W1K 3HQ |
| Strutt & Parker | 13 Hill Street London W1J 5LQ |
| Summit Property Advisors | 44 Welbeck Street London W1G 8DY |
| The Lorenz Consultancy Ltd | 21 Hanover Square London W1S 1JW |
| Tuckerman Commercial Ltd | 35 Old Queen Street London SW1H 9LA |
| Allsop LLP | 27 Soho Square London W1D 3AY |
| Andrew Haig & Co | 3 Wigmore Place Cavendish Square London W1U 2LN |
| Ashwell Rogers | 33 Cork Street London W1S 3NQ |
| Collins Commercial | Third Floor 22 Cross Keys Close London W1U 2DW |
| George Trevor & Associates | 180 Piccadilly London W1J 9HF |
| Glinsman Weller | 5 Blenheim Street London W1S 1LD |
| Grant Monger-Godfrey | 388 Oxford Street London W1C 1JS |
| Gross Fine | Bentinck House 3-8 Bolsover Street London W1W 6AB |
| hb surveyors & valuers | Portland House 4 Great Portland Street London W1W 8QJ |
| Miles Commercial | 25 Ives Street London SW3 2ND |
| Northam Clover | 58 Grosvenor Street London W1K 3JB |
| Reddin Clancy | 1 Duchess Street London W1W 6AN |
| Simmonds Heath & Co | 61 Grosvenor Street London W1K 3JE |
| Sparkes Porter LLP | 17 Grosvenor Hill London W1K 3QB |
| Studley | One Tenterden Street London W1S 1TA |
| Symon Smith & Partners | 277/281 Oxford Street London W1C 2DL |
| Thomas Davidson & Partners | Carrington House 126/130 Regent Street London W1B 5SE |