| Circa Energy LLP | Business Services | Energy Consultants | Foundry House, Doagh Road, Ballyclare, Ballyclare |
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| Energy International UK Ltd | Business Services | Energy Consultants | Greenlands Business Centre, Studley, Redditch, Redditch |
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| Green 2020 Ltd | Business Services | Energy Consultants | Technium Springboard, Llantarnam Park, Cwmbran, Cwmbran |
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| Energy Conserve Limited | Business Services | Energy Consultants | 275 Wigan Road, Chorley, Chorley |
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| Teamwork Energy Bureau Services Ltd | Business Services | Energy Consultants | King“s Court, 87-89 High Street, Bristol, Bristol |
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| Gecko Low Carbon Consulting | Business Services | Energy Consultants | 4 Dudley Hill, Milton Keynes, Milton Keynes |
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| Energy Team (UK) Limited | Business Services | Energy Consultants | Team House, Unit 7 Braybon Business Park, Consort Way, Burgess Hill, Burgess Hill |
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| Utility Advice Bureau | Business Services | Energy Consultants | 36 Hunt Road, Poole, Poole |
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| Nationwide Utilities | Business Services | Energy Consultants | 148 - 150 Penwith Road, London, London |
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| Build Energy Ltd | Business Services | Energy Consultants | 6 Silver Business Park, Airfield Way, Christchurch, Christchurch |
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| Green Age Energy | Business Services | Energy Consultants | 28 Twitten Way, Worthing, Worthing |
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| Power Direct Ltd | Business Services | Energy Consultants | Kestrel Court, Gloucester, Gloucester |
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| Carbon Reducing Consultants Ltd | Business Services | Energy Consultants | 59 Pennymoor Drive, Middlewich, Middlewich |
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| esave | Business Services | Energy Consultants | Maltings Business Centre, Longman Road, Inverness, Inverness |
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| Energy Saving Warehouse | Business Services | Energy Consultants | Lancaster Environment Centre, Lancaster University, Lancaster, Lancaster |
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| WT Spragg Ltd | Business Services | Energy Consultants | 219 Lower Way, Thatcham, Thatcham |
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| One Power Energy | Business Services | Energy Consultants | 3 Brindley Place, Birmingham, Birmingham |
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| Phoenix Energy (UK) Ltd | Business Services | Energy Consultants | 25 Brougham Court, Peterlee, Peterlee |
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| The Energy Desk | Business Services | Energy Consultants | Suite 102, Group First House, 12a Mead Way, Burnley, Burnley |
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| Monitor Energy Consultancy | Business Services | Energy Consultants | 18 Mount Tabor Stables, Leighton Road, Aylesbury, Aylesbury |
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