| AMS Industrial Services - Railway Works - DN10 4PX |
| Cementation Skanska - Bentley House/Jossey La - DN5 9ED |
| Cosyhome Insulation Ltd. - Insulation House - DN5 9AG |
| Delta T (Trace Heating) Ltd - Unit C1/Armthorpe Enterprise Park - DN3 3DY |
| E C D Gas Spares Today - Unit 2F/Lake Enterprise Park - DN3 1QR |
| Eco HomeTec (UK) Ltd - Unit 11E/Carcroft Enterprise Park - DN6 8DD |
| Lionheart Heating Services Ltd - Harworth Park Industrial Estate - DN11 8DB |
| Plumnet UK - 59 Cooke St - DN5 0DD |
| Stoves - Blyth Road - DN11 8NE |
| UK Coal PLC - Harworth Park Industrial Estate - DN11 8DB |
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