• A Avi Jacob
  36 Grimsdyke Road, PINNER, Middlesex, HA5 4PW
• A C Direct
  Stable Yard 65 Albert Road, South Woodford, LONDON, Greater London, E18 1LE
• A C R
  Combe Road, WATFORD, Hertfordshire, WD18 6LD
• A D Installation
  14 North Road, DARTFORD, Kent, DA1 3NA
• A L Lo Installations
  50-54 Farnham Road, ILFORD, Essex, IG3 8QD
• Accc Air Conditioning
  Howard Close Business Park, WALTHAM ABBEY, Essex, EN9 1XB
• Accent Services (Air Conditioning) Ltd
  4 Brooklands Close, SUNBURY ON THAMES, Middlesex, TW16 7DX
• Accord Air Systems
  Lawmans Centre, 28-32 Beddington Lane, CROYDON, Surrey, CR0 4TB
• Active Air
  22 Pettsgrove Avenue, WEMBLEY, Middlesex, HA0 3AF
• Advanced 2000 Ltd
  135 Garth Road, MORDEN, Surrey, SM4 4LF
• Aim Mechanical Services Ltd
  2 Veridion Way, Suite 23 Veridion Park, ERITH, Kent, DA18 4AL
• Air Conditioning Contracts
  79 Gillmans Road, ORPINGTON, Kent, BR5 4LD
• Air Conditioning Contracts Ltd
  Section A Building, 248 Elgin CR, London Heathrow Airport, HOUNSLOW, Middlesex, TW6 2RX
• Air Conditioning Technologies Ltd
  4 Winds End Close, HEMEL HEMPSTEAD, Hertfordshire, HP2 5LN
• Air Ref Ltd
  1 Minories, LONDON, Greater London, EC3N 1BJ
• Air Systems Design
  697 High Road, ILFORD, Essex, IG3 8RH
• Air Tight Air Conditioning Servicces
  2 Chantry Court, Plumpton Way, CARSHALTON, Surrey, SM5 2DG
• Aircair Ltd
  17-18 Brook La Business Centre, Brook La North, BRENTFORD, Middlesex, TW8 0PP
• Aircon Doc
  51 Cunningham Avenue, ENFIELD, Middlesex, EN3 6LB
• Aircon Installations Ltd
  132 Morton Way, LONDON, Greater London, N14 7AL
• Aireserv
  Unit 19 Park Royal Business Centre, 9-17 Park Royal Road, LONDON, Greater London, NW10 7LQ
• Airtech Ltd
  47 Paul Street, LONDON, Greater London, EC2A 4LP
• Airtemps Maintenance Ltd
  Brent House, 214 Kenton Road, HARROW, Middlesex, HA3 8BT
• Alexander Air Conditioning Limited
  Surrey House, Pleasant Place, Hersham Green, Walton-On-Thames, Surrey, KT12 4HR
• All Cool Air Conditioning Services
  66 Yukon Road, BROXBOURNE, Hertfordshire, EN10 6FN
• Allcold Refrigeration & Airconditioning Ltd
  28-29 Eastman Road, LONDON, Greater London, W3 7YG
• Allied Associate Services Ltd
  17 Lymington Gardens, EPSOM, Surrey, KT19 0LY
• Alphacool Refrigeration
  12 Wood Dene, LONDON, Greater London, SE15 2EW
• Apex Commercial Refrigeration & Air Condition
  6 Greenwich Centre Business Park, 53 Norman Road, LONDON, Greater London, SE10 9QF
• Arctic Building Services Ltd
  138 Gallants Farm Road, East Barnet, BARNET, Hertfordshire, EN4 8EL
• Artic Air Conditioning
  3 Longhill Road, LONDON, Greater London, SE6 1TU
• Artic Services
  4 Richmond Road, LONDON, Greater London, E11 4BA
• Artisan Services Ltd
  Unit 3 Brooklands Approach, ROMFORD, Essex, RM1 1DX
• Artisan, Air-Conditioning And, Refrigeration Service Ltd
  Unit 3 Brooklands Approach, ROMFORD, Essex, RM1 1DX
• Askool
  62 Yeading Lane, HAYES, Middlesex, UB4 0EX
• Astonvale Air Conditioning Engineers
  Mill House, Priory Road North, DARTFORD, Kent, DA1 2BZ
• Atmospheres UK
  H Riverdene Industrial Estate, Molesey Road, WALTON ON THAMES, Surrey, KT12 4RG
• Avi Jacob
  36 Grimsdyke Road, PINNER, Middlesex, HA5 4PW
• B&N Refrigeration & Airconditioning Ltd
  28 St.Thomas Drive, PINNER, Middlesex, HA5 4SS
• Barrier Air Conditioning Ltd
  3 Metro Centre, Bridge Road, ORPINGTON, Kent, BR5 2BE
• Belmont Air Conditioning
  60 Belmont Road, WALLINGTON, Surrey, SM6 8TB
• Birdsall Services
  Crystal Palace National Sports Centre, Ledrington Road, LONDON, Greater London, SE19 2BB
• Boatman Air-Conditioning
  Unit 1a Abbey Trading Estate, Bell Green Lane, LONDON, Greater London, SE26 5TW
• Bonair Ltd
  367a Upper Richmond Road, LONDON, Greater London, SW15 5QJ
• Boonbest Ltd
  43 Park Lane, BROXBOURNE, Hertfordshire, EN10 7NG
• C Johnson & Partners
  121 Park Road, LONDON, Greater London, W4 3EX
• Caledonian Building Services South East Ltd
  31 Slewins Lane, HORNCHURCH, Essex, RM11 2BZ
• Castle Refrigeration Services
  Unit 1 F Summit Business Park, Hanworth Road, SUNBURY ON THAMES, Middlesex, TW16 5DB
• Cevac & Co.
  4 Marechal Niel Parade, Main Road, SIDCUP, Kent, DA14 6QF
• Chilly Pepper Hire
  Nightingale House, 1 Fulham High Street, LONDON, Greater London, SW6 3JH
• City Engineering Ltd
  9 Cygnus Business Centre, Dalmeyer Road, LONDON, Greater London, NW10 2XA
• Climate Control South-Ea
  Unit 6 The Enterprise Centre, Cranborne Road, POTTERS BAR, Hertfordshire, EN6 3DQ
• Climatech Air Conditioning Ltd
  11 Clifton Close, ORPINGTON, Kent, BR6 7DQ
• Coglan Air Conditioning Services
  Churchill House, 137-139 Brent Street, LONDON, Greater London, NW4 4DJ
• Comfort Cooling Installations
  78 Woodland Road, LONDON, Greater London, E4 7EU
• Comfortair Hire & Sales UK Ltd
  135 Little Ealing Lane, LONDON, Greater London, W5 4EJ
• Conditioned Environment (Services) Ltd
  Ander House, 245 Acton Lane, LONDON, Greater London, NW10 7NR
• Constant Temperature Control Service Ltd
  Contract House, 202 North Cray Road, SIDCUP, Kent, DA14 5EL
• Contract Components
  Stafford Road, CROYDON, Surrey, CR0 4NH
• Cool Breeze Air
  34 Castleton Avenue, BEXLEYHEATH, Kent, DA7 6QU
• Cool Connections
  19 Hainault Road, ROMFORD, Essex, RM5 3AA
• Cool Environmental Services
  14 Seaforth Avenue, NEW MALDEN, Surrey, KT3 6JP
• Cool Runnings
  3 Queens Bench Cottages, Station Road, HAMPTON, Middlesex, TW12 2DB
• Coolbusters
  44 Great Plumtree, HARLOW, Essex, CM20 2NT
• Coolways Ltd
  135 Aboyne Road, LONDON, Greater London, NW10 0EY
• Coverite Air Conditioning Contracts Ltd
  Unit 17 Coldart Business Centre, 3 King Edward Avenue, DARTFORD, Kent, DA1 2HZ
• Crisp Servicing
  583 Rayners Lane, PINNER, Middlesex, HA5 5HP
• Cryotec Air Conditioning
  4 Netherpark Drive, ROMFORD, Essex, RM2 5RL
• Crystal Ice
  4 Dolman Road, LONDON, Greater London, W4 5UY
• Crystal Refrigeration Ltd
  4 Dolman Road, LONDON, Greater London, W4 5UY
• Current Development Ltd
  Unit 46 Brockley Cross Business Centre, Endwell Road, LONDON, Greater London, SE4 2PD
• D & G Services
  Culvers Avenue, CARSHALTON, Surrey, SM5 2BL
• D & T Vehicle
  8 Windmill Lane, Bushey Heath, BUSHEY, Hertfordshire, WD23 1NH
• D M Air Conditioning Solutions
  69 Northumberland Way, ERITH, Kent, DA8 3NX
• D R Refrigeration Services
  38 Radnor Road, LONDON, Greater London, SE15 6UR
• Dammy Air Ltd
  43 Old Farm Close, HOUNSLOW, Middlesex, TW4 7AB
• Danimak Ltd
  Dagenham Dock Estate, Chequers Lane, DAGENHAM, Essex, RM9 6PR
• Dean & Wood Ltd
  Unit 4 The Highway Trading Centre, Heckford Street, LONDON, Greater London, E1W 3HR
• Delrac Acs
  Fairman Law House, 1-3 Park Terrace, WORCESTER PARK, Surrey, KT4 7JZ
• Delta Air Systems
  Holt Road, WEMBLEY, Middlesex, HA0 3PS
• Direct Building Maintenance Services Ltd
  1 Nelmes Close, HORNCHURCH, Essex, RM11 2QA
• Direct Commissioning Services
  8 Ashfields, LOUGHTON, Essex, IG10 1SB
• Direction Fire Ltd
  5 First Quarter, Blenheim Road, EPSOM, Surrey, KT19 9QN
• E A C Planned Maintenance Ltd
  Benhill Road, LONDON, Greater London, SE5 7QY
• E C S Air Conditioning Ltd
  42-44 Brockley Rise, LONDON, Greater London, SE23 1LJ
• Eagle Systems
  11 Stapylton Road, High Barnet, BARNET, Hertfordshire, EN5 4JJ
• Eastern Fabrications
  3 Horsecroft Place, HARLOW, Essex, CM19 5BT
• Easton Fabrications
  3 Horsecroft Place, HARLOW, Essex, CM19 5BT
• Ecs Air Conditioning
  17 Station Road, LONDON, Greater London, SE20 7BE
• Embleton Services Ltd
  5 Freeland Way, ERITH, Kent, DA8 2LQ
• Emergency Refrigeration Services Ltd
  78 York Street, LONDON, Greater London, W1H 1DP
• Ems Engineering Maintenan
  15-29 Eyre Street Hill, LONDON, Greater London, EC1R 5LB
• English Automotive Services
  Unit 6 24 Central Avenue, WEST MOLESEY, Surrey, KT8 2QH
• Environmental Control Services Ltd
  Liberty Centre, Mount Pleasant, WEMBLEY, Middlesex, HA0 1TX
• Environmental Cooling UK Ltd
  4 The Progression Centre, Mark Road, HEMEL HEMPSTEAD, Hertfordshire, HP2 7DW
• Environmental Resolutions UK Ltd
  2 Bury Road, HATFIELD, Hertfordshire, AL10 8BJ
• Esher Air Conditioning
  1 Hinchley Close, ESHER, Surrey, KT10 0BY
• Espace Airconditioning Ltd
  198a Halfway Street, SIDCUP, Kent, DA15 8DJ
• Etech Sales Ltd
  17 Nottingham Street, LONDON, Greater London, W1U 5ER
• F Merritt
  44 Birchwood Drive, DARTFORD, Kent, DA2 7NF
• Fermod Ltd
  Unit 2 Northumberland Close, Stanwell, STAINES, Middlesex, TW19 7LN
• Frost Duval Ltd
  Stanley Works, Stanley Road, SIDCUP, Kent, DA14 4DQ
• Fujitsu General UK Co Ltd
  Unit 150 Centennial Park, Centennial Avenue, Elstree, BOREHAMWOOD, Hertfordshire, WD6 3SG
• G S E
  54 Chapel View, SOUTH CROYDON, Surrey, CR2 7LF
• G W Air Conditioning
  36 Lodge Avenue, CROYDON, Surrey, CR0 4JZ
• George S Industrial Services Ltd
  49 Theobald Street, BOREHAMWOOD, Hertfordshire, WD6 4RZ
• H & H Services
  Unit 23 Mulberry Court Bourne Industrial Park, Bourne Road, DARTFORD, Kent, DA1 4BF
• H M L Group Ltd
  4 Metro Business Centre, Kangley Bridge Road, LONDON, Greater London, SE26 5BW
• HS Enviromental
  4 Rufus Business Centre, Ravensbury Terrace, LONDON, Greater London, SW18 4RL
• Habcold
  Unit 51 Waterside Trading Centre, Trumpers Way, LONDON, Greater London, W7 2QD
• Hanmar Airconditioning Ltd
  77 Caverleigh Way, WORCESTER PARK, Surrey, KT4 8DQ
• Harrison-Page(Refrigeration)Limited
  63 Lion Road, BEXLEYHEATH, Kent, DA6 8NN
• Hayward Engineering Solutions Ltd
  78 Rectory Lane, LONDON, Greater London, SW17 9PY
• Hendrix Engineering Ltd
  44 Halsbury Road East, NORTHOLT, Middlesex, UB5 4PX
• Hpa Mechanical Services Ltd
  267 Wickham Street, WELLING, Kent, DA16 3LS
• J C Watson Refridgeration
  Unit 30 Thurrock Commercial Centre, Purfleet Industrial Park, Aveley, SOUTH OCKENDON, Essex, RM15 4YG
• J L Services
  19 Wycombe Road, ILFORD, Essex, IG2 6UT
• J Storey & Associates Ltd
  123 Harris Way, SUNBURY ON THAMES, Middlesex, TW16 7EL
• JSP Building Products Ltd
  Adams Bridge Yard, South Way, WEMBLEY, Middlesex, HA9 0HB
• K & S Refrigeration & Air Conditioning Services
  62 Melbourne Road, LONDON, Greater London, E10 7HF
• L H Refrigeration Services
  Unit 6 50 Windsor Avenue, LONDON, Greater London, SW19 2TJ
• L J Refrigeration & Heating Service
  19 Thorncombe Road, LONDON, Greater London, SE22 8PX
• London & City Air Conditioning Contractors Ltd
  Ander House, 245 Acton Lane, LONDON, Greater London, NW10 7NR
• London & Kent Air Conditioning Ltd
  Mentmore House, Cray Avenue, ORPINGTON, Kent, BR5 3QF
• MP Air Conditioning
  71 Telham Road, LONDON, Greater London, E6 6BW
• Mac Air Conditioning Ltd
  Unit 11 Maple Park, Essex Road, HODDESDON, Hertfordshire, EN11 0EX
• Mala Electrical Ltd
  126 Petherton Road, LONDON, Greater London, N5 2RT
• Mala Maintenance Ltd
  126 130 Petherton Road, LONDON, Greater London, N5 2RT
• Marsden
  39 Kimberley Road, LONDON, Greater London, E4 6DF
• Maskold Ltd
  Unit 70 Wimbledon Stadium Business Centre, Riverside Road, LONDON, Greater London, SW17 0BA
• Max Air
  158 Ashcroft Square, King Street, LONDON, Greater London, W6 0YN
• Melba Refrigeration
  49 Cornwallis House, India Way, LONDON, Greater London, W12 7QT
• Merrit Air Conditioning
  44 Birchwood Drive, DARTFORD, Kent, DA2 7NF
• Metair Mechanical Services Ltd
  Unit 21d Queensway, ENFIELD, Middlesex, EN3 4SZ
• Micra Air Conditioning Services
  9 Vicarage Road, WOODFORD GREEN, Essex, IG8 8NH
• Modern Electrical Services
  2 Whitethorn Gardens, CROYDON, Surrey, CR0 7LL
• Morris & Young
  5 Ash Industrial Estate, Flex Meadow, HARLOW, Essex, CM19 5TJ
• N Squared
  4 Lincoln Road, WEMBLEY, Middlesex, HA0 4SU
• Omega Environmental Technologies
  21-24 Cockspur Street, LONDON, Greater London, SW1Y 5BN
• Optimum F M Ltd
  1c Lyon Way, GREENFORD, Middlesex, UB6 0BN
• Optimum Sales Ltd
  1c Lyon Way, GREENFORD, Middlesex, UB6 0BN
• Ozcool Air Conditioning
  12 Aldenham Drive, UXBRIDGE, Middlesex, UB8 3UA
• P R Systems Ltd
  56 Princes Avenue, SURBITON, Surrey, KT6 7JN
• Pace Services
  143 Stafford Road, WALLINGTON, Surrey, SM6 9BN
• Pinner Air Conditioning Ltd
  28 St.Thomas Drive, PINNER, Middlesex, HA5 4SS
• Plus 2 Minus Degrees C Ltd
  24 Ealing House, 33 Hanger Lane, LONDON, Greater London, W5 3HJ
• Pola-Air
  201 Upper Rainham Road, HORNCHURCH, Essex, RM12 4EY