| A A C Air Conditioning - 48 Field Rise - DE23 7DE |
| A L S (Sales & Service) Ltd - 5 Prestbury Cl - DE21 2LT |
| Aeromatic-Barter Ltd - Denby Works - DE5 8JH |
| Air Conditioning by Frank Piggott Ltd - 9 Hall Close Dronfield Woodhouse - S18 8ZA |
| Air Conditioning Economics Ltd. - Unit 6 Tomlinson Industrial Estate - DE21 4ED |
| Air Conditioning Services - Unit 6 Foxwood Industrial Park - S41 9RN |
| Andrew Engineering Ltd. - 4 Cobnar Wood Close - S41 9RQ |
| B.O.B. Stevenson Ltd - Coleman St - DE24 8NL |
| BAC Air Conditioning Ltd - Unit 8 - DE55 7RL |
| Batecool - 5 Hillside - DE65 6AZ |
| Beeston Heating - Derwentside Industrial Estate - DE56 1UX |
| Clarke,Meadows & Lowe Ltd - 9 Redland Close - DE24 9PR |
| Clean Modules Ltd - Centre - DE73 1FT |
| Cool Customers Limited - Unit 8 - DE55 7RL |
| Cryotech Systems Ltd - Prime Enterprise Park - DE1 3QB |
| Demain Ltd - Unit 30 M1 Commerce Park Markham Lane Duckmanton - S44 5HS |
| Diverse Air - 77 Chesterfield Rd - S42 5LF |
| Donkin Bryan - Enterprise Dr - S42 5UZ |
| Eagle Fabrications - Unit 3/Shipley Court - DE7 8EF |
| ETTA Plumbing & Heating Services Ltd - Unit 28 - DE23 8LD |
| Eventemp Midlands Limited - Carrwood Road - S41 9QB |
| Flowcool Systems Ltd - Unit 5 - DE55 4LS |
| Frenger Systems Ltd - 13-15 Shaftesbury Street South - DE23 8YH |
| Glapwell Contracting Services - Newbridge Works - S41 9EY |
| Global Cooling Services - Sundial Barn 2 Sundial Close Brailsford - DE6 3DP |
| Global heating services - Breach House - DE75 7NJ |
| Heat Exchange Industries Ltd. - Osmaston Park Road - DE24 8BT |
| Ims Ltd - Millbank Close Mackworth - DE22 4HJ |
| J P S Refrigeration - Unit 18 George Holmes Way - DE11 9DF |
| JCS Group - Station Road - DE74 2FQ |
| Midway Building Services Ltd. - Viking House - DE11 7EH |
| Mitchell & Hewitt - Malcolm Street - DE23 8LT |
| Multiserve Building Services Engineers - Bowden Hall - SK23 0QP |
| Pennine H V A C - Unit 27A/Parker Ind Est/Mansfield Rd - DE21 4SZ |
| Pennine Hvac - 27A Parker Centre - DE21 4SZ |
| Pilgrim Refrigeration Services - Amber Business Centre/Greenhill La - DE55 4BR |
| Star Refrigeration Ltd - Wincanton Close - DE24 8NB |
| TermoDeck - Weston Underwood - DE6 4PH |
| The Grille Diffusers & Louvre Co. Ltd. - Air Diffusion Works - SK13 1AB |
| Thermal Transfer Ltd. - Thermal Transfer House - SK13 7AG |
| Vahterus (UK) Ltd - 12-14 Derby Road - DE73 1FE |
| W C R (UK) Ltd - Unit 68 & 72 - S44 5HS |
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