| Air Conditioning & Environmental Services Ltd - Unit 13a Aylesbury Business Centre - HP19 8DY |
| Air Conditioning & Environmental Services Ltd - Unit 13A Aylesbury Business Centre Chamberlain Rd - HP19 8DY |
| Air Quality Services Ltd - Hamden Buildings - HP12 3RH |
| Aircon Services - Unit 6 - HP11 2LQ |
| Aircool Refrigeration - Carters Yard/34 Carters La - MK11 3HL |
| Amp-Air Services - Unit 33 - HP18 0NS |
| Andrews Air Conditioning Hire - Chesney Wold - MK6 1NE |
| Banfield Refrigeration Supplies Ltd - Unit 6/Wycombe Ind Mall - HP11 2QY |
| Batchelor - UNIT 3 Stilebrook Rd - MK46 5EA |
| Blue Sky Air Conditioning Ltd - Blue Sky Air Conditioning Ltd - MK16 8ST |
| Climate Solutions Ltd - 6c Furlong Road - SL8 5DG |
| Comserve Ltd - Hawkmore Close Eaglestone - MK6 5BU |
| Cool Air Co (GB) Ltd - Unit 8 St. Marys Av - MK11 1EB |
| Cool Concepts - 22 Furlong Rd - SL8 5DG |
| Cool Concepts - 22 Furlong Road - SL8 5DG |
| Cool Crew The - 45 Bantock Cl - MK7 8DS |
| Delford Environmental Services Ltd - Wilbeck House - HP12 4QR |
| Denhaco - Unit 1/2/Station Rd Ind Est/Station Rd - MK18 3DD |
| Domglade Ltd - 1a Desborough Avenue - HP11 2RS |
| Domino Building Services Ltd - Rose Industrial Estate - SL7 3ND |
| Dust Pollution Systems Ltd - Unit 2/Premacto Works - HP10 9XA |
| Dy-Rect Services - Hikers Way - HP18 9RW |
| E H C Teknik UK Ltd - Unit 5/Berber Business Centre/Kitchener Rd - HP11 2TD |
| Edworthy's Auto Electrics - 15 March Place - HP19 3UG |
| Edworthy's Auto Electrics - 15 March Place - HP19 8UB |
| Envirotec Ltd - Desborough Pk Road - HP12 3BX |
| Envirotec Ltd. - Desborough Industrial Park - HP12 3BX |
| Exhausto - 1-3 Lancaster Ct/Coronation Rd - HP12 3TD |
| Exhausto Ltd - Unit 4-5/Centurion Court - MK11 3JB |
| Force One Air Conditioning Ltd - 17 Albert St - HP20 1LY |
| H M Air Cooling Ltd. - Unit 10 Wycombe Industrial Mall - HP11 2QY |
| Harpies Design - Startop/New Rd - HP17 8UT |
| Ice Boys - Unit 8 I.O Centre Fingle Drive Stonebridge - MK13 0AT |
| Ice Boys - Rowan House Portfields Farm - MK16 8NG |
| Ice Boys Air Conditioning Units - 63 Alston Drive - MK13 9HB |
| Ice Boys Services Ltd - Unit 8/The I O Centre - MK13 0AT |
| Intersolar Group Ltd - Cock Lane - HP13 7DE |
| Isotemp (Heating & Ventilating) Ltd - Loudwater Mill - HP10 9UD |
| Jay Environmental (U K) Ltd. - Beech House - HP14 3JG |
| JKL Flues Ltd - Cryers Hill Road - HP15 6JS |
| Liebert Hiross Ltd - Fourth Avenue - SL7 1YG |
| London Air Conditioning - 54 Marlow Bottom Rd - SL7 3LZ |
| Marlow Air Conditioning - Unit N/Rose Business Estate/54 Marlow Bottom Road - SL7 3ND |
| New Century Air Conditioning & Refrigeration Ltd - 30 Station Road - HP22 5UL |
| Portable Air Conditioning Solutions Ltd - 43 Richings Way - SL0 9DB |
| Risby - Princes Road - SL8 5HZ |
| Slough Gasworld - Slough Road - SL0 0DW |
| Southern Heating & Ventilation Services - 24 Furlong Road - SL8 5DG |
| Sterling Process Engineering Ltd - Brunel Road - HP19 8TD |
| Tencer Ltd - Unit 14/15 Lincoln Park Busine - HP12 3RD |
| Thames Valley Temperature Control - Ground Floor - HP12 3AX |
| The Hampden Consultancy - Unit 5, Chiltern House - HP5 1PS |
| Weiss Technik Ltd - Willowbank House - SL7 1NX |
| Wood Waste Control Engineering Ltd - 2 - HP10 0PF |
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