| Construction Specialties (UK) Ltd - Conspec House - HP19 8AF |
| Crendon Timber Engineering Ltd - Drakes Drive - HP18 9BA |
| David Hicks Associates Ltd - 28 Orwell Drive - HP21 9JN |
| Gemini Prototyping - Gemini House - HP18 9LD |
| Powell Jeffrey Associates - 74A Bicester Rd - HP19 8AL |
| South Fix Glazing Ltd - 48 Elmhurst Road - HP20 2EA |
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