| 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 |
| Amp-Air Services - Unit 33 - HP18 0NS |
| Dy-Rect Services - Hikers Way - HP18 9RW |
| Edworthy's Auto Electrics - 15 March Place - HP19 3UG |
| Edworthy's Auto Electrics - 15 March Place - HP19 8UB |
| Force One Air Conditioning Ltd - 17 Albert St - HP20 1LY |
| Harpies Design - Startop/New Rd - HP17 8UT |
| New Century Air Conditioning & Refrigeration Ltd - 30 Station Road - HP22 5UL |
| Sterling Process Engineering Ltd - Brunel Road - HP19 8TD |
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