- Applied Ecological Services Ltd - Bishop Auckland
- Aquatic Environments - Bishop Auckland
- Atlas Washroom Systems - Bishop Auckland
- Barrett Environmental Ltd - Bishop Auckland
- Bondgate Electrical Distribution Ltd - Bishop Auckland
- Century Demolition Ltd - Bishop Auckland
- Conservatory and Window World Ltd - Bishop Auckland
- DAF (Timber) Ltd - Bishop Auckland
- Durham Box - Bishop Auckland
- Ebac Industrial Products Limited - Bishop Auckland
- Fablink Tank Systems Ltd - Bishop Auckland
- GCL Lightboxes - Bishop Auckland
- Harbro Supplies Ltd - Bishop Auckland
- Hercules Security Fabrications Ltd - Bishop Auckland
- Industracare - Bishop Auckland
- Ingram's Removers & Storers - Bishop Auckland
- Izumi Products UK Ltd - Bishop Auckland
- J Beal Waste Metal Recycling - Bishop Auckland
- L P C Components - Bishop Auckland
- Mike Neesam & Son Ltd - Bishop Auckland
- Plastic Mouldings Northern Ltd - Bishop Auckland
- Prep-Rite UK Flooring Services Ltd - BISHOP AUCKLAND
- R Lightfoot Electrical - Bishop Auckland
- Stormking Windows - Bishop Auckland
- Triton Controls - Bishop Auckland
- Vinovium Associates Ltd - Bishop Auckland
- Warrens Group - Bishop Auckland
- Wear Valley Aerosols - Bishop Auckland