- Ah Diamond & Sons
- 020 74043996 - 42 Theobalds Rd, London Central, WC1X 8NW
- Alcon Property Services
- 020 75383166 - Porters Lodge Selsdon Wy, London, E14 9GL
- Brighter Future
- 020 83765101 - 266 High Road, London, N15 4AJ
- Cemplas
- 020 86543149 - Holbrook House, 72 Lower Addiscombe Road, Croydon, Surrey, CR9 6AD
- Euro Property Services
- 020 73864300 - 29 Margravine Road, London, W6 8LL
- Generalbuilders
- 020 88015546 - 6a Ashmount Road, London, London, N15 4DD
- Kensington & Chelsea Property Maintenance
- 020 73717626 - 7 Foskett Road, London, SW6 3LY
- Loftus Family Property
- 020 76045900 - Asher Ho Blackburn Rd, London, NW6 1RZ
- Loftus Family Property
- 020 74863352 - 1 Kendall Place, London, W1U 7JL
- London Tokyo Property Service Ltd
- 020 74864256 - 214 Baker Street, London, NW1 5RT
- London-Tokyo Property Services Ltd
- 020 83432306 - 351b Regents Park Road, London, N3 1DH
- London Tokyo Property Services (Finchley Road Swiss Cottage)
- 020 73727341 - 219a Finchley Rd, London, NW3 6LP
- London Tokyo Property Services (Putney High Street)
- 020 87801101 - London South-west, SW15 1II
- London Tokyo
- 020 77228700 - 62 Queens Grove, London, NW8 6ER
- MDL Property Services
- 020 85255598 - Unit 1 Tilia Rd, London East, E5 8JB
- Minotaur Construction
- 020 77003001 - 373 Caledonian Rd, London North, N7 9DQ
- P L D property Services
- 020 86737655 - 6 Westbury Pde, London, SW12 9RT
- Peach Property Services
- 020 77396969 - Bethnal Gn Rd, London, E1 6LA
- Premium Lets Property Services
- 020 86564544 - 28 Portland Road, London, SE25 4PF
- Property Maters Southern
- 020 73542873 - 8 Bute Walk, London, N1 2QX
- Quickseal Waterproofing
- 020 85306808 - 50 Chigwell Road, London, E18 1LS
- Royal Docks Property Services
- 020 74741234 - Conrad Ho Wesley Av, London, E16 1TD
- Sage Property Services
- 020 85092425 - A, 375 Hoe Street, London, E17 9AP
- St. George
- 020 74714444 - St George Ho, 7 Imperial Road, London, SW6 2AG
- Shogun Realty
- 020 79165500 - 21 Pratt Street, London, NW1 0BG
- Sotheby's Institute
- 020 74623232 - 30 Oxford Street, London, W1D 1AZ
- Sotheby's Olympia
- 020 72935555 - Olympia 2 Hammersmith Rd, London, W1S 2RT
- Swift Property Services
- 020 82896262 - 142 Anerley Road, London, SE20 8DL
- Tradition Family Property
- 020 79371872 - London, W8 5BS
- Westminster Property Service
- 020 73282320 - 6 Kilburn Bridge, London, NW6 6HT
- Exchange Property Services
- 020 85531444 - 141 Cranbrook Road, Ilford, Essex, IG1 4PU
- I G Finance & Property Services
- 020 89119383 - 129 Ilford Lane, Ilford, Essex, IG1 2RN
- Kelly Corporation
- 01708 453232 - 34 Roneo Cnr, Hornchurch, Essex, RM12 4TN
- Kings
- 01992 892967 - 60 North Street, Nazeing, Waltham Abbey, Essex, EN9 2NW
- Kwikseal Waterproofing
- 01708 348921 - 114 Shepherds Hl, Romford, Essex, RM3 0NJ
- Lantern Property Services
- 01708 379797 - 34a The Mount, Romford, Essex, RM3 7LJ
- Nationwide Property Maintenance
- 020 85923901 - 46 Downing Road, Dagenham, Essex, RM9 6NP
- Pass
- 020 85940020 - 38 Wilmington Gardens, Barking, Essex, IG11 9TP
- Spencers
- 020 85185411 - 211 Cranbrook Road, Ilford, Essex, IG1 4TD
- Cedar Care
- 020 88649624 - 129 Greenford Road, Harrow, Middlesex, HA1 3QN
- City West Property Services
- 020 88141110 - 343 Bath Road, Hounslow, Middlesex, TW3 3DH
- Colin Dean Property Services
- 020 84225511 - Roxeth Ho Shaftesbury Av, S Harrow, HA2 0NX
- D & D
- 020 87952599 - 18 Wembley Park Drive, Wembley, Middlesex, HA9 8HA
- Daniel Family Homes
- 020 88421100 - 445 Victoria Road, Ruislip, Middlesex, HA4 0EG
- Mitie Property Services
- 01895 206850 - Mitie Ho Eskdale Rd, Uxbridge, Middlesex, UB8 2RT
- Ridditt
- 01895 254144 - 21 Tachbrook Road, Uxbridge, Middlesex, UB8 2QS
- Ryder Property Services
- 01895 443164 - 85 Mill Road, West Drayton, Middlesex, UB7 7EH
- St. James Homes Ltd
- 020 87832500 - 209-217 High Street, Hampton Hill, Hampton, Middlesex, TW12 1NP
- Drewery Property Services
- 020 83006761 - 128 Station Road, Sidcup, Kent, DA15 7AB
- Attburn Property Services
- 020 89496346 - 152-178 Kingspark Bsns Cntr, New Malden, KT3 3ST
- Bradholme Property Services
- 020 89793333 - Riverside Ho Feltham Av, East Molesey, Surrey, KT8 9BJ
- Epsom Accounting Ltd
- 01372 749770 - 93 High Street, Epsom, Surrey, KT19 8DR
- Browns Property Services North Cheam
- 020 83307888 - Worcester Park, Surrey, KT4 8RW
- Knightsbridge Property Services
- 020 82873838 - 42 Willow Lane, Mitcham, Surrey, CR4 4NA
- LSE Preservation
- 020 83980096 - 100 Thorkhill Road, Thames Ditton, Surrey, KT7 0UW
- Norris Property Maintenance
- 020 86687822 - 21 Station Approach, Coulsdon North, Coulsdon, Surrey, CR5 2NR
- Pass & Co
- 020 86692479 - 126 High Street, Carshalton, Surrey, SM5 3AE
- Timkon (Holdings) Ltd
- 020 86439311 - 11 Langley Park Road, Sutton, Surrey, SM1 4TB
- Top Notch Timber Preservations
- 020 82404461 - 22 South End, Croydon, Surrey, CR0 1DN
- Unique Construction Services
- 07976 236613 - 31 Montague Road, London, London, W7 3PG
- DHG Building Services
- 020 87412399 - 344 King Street Hammersmith, London, W6 0RX