- Advanced Industrial Rewinds Ltd - DH1 2XL
- Background Sounds - DH1 1TW
- C D S Security & Fire - DH1 2XH
- Durham Pumps Ltd - DH1 1TN
- Expert Fire Solutions - DH1 2RS
- G-Rack - DH1 1TN
- Home Life Interiors - dh1 1tw
- Ikon Science Ltd - DH1 5TS
- Jordan Valley Semi-conductors UK Ltd - DH1 1TW
- Major & Aspinall Ltd - DH1 2RW
- Millbank Solutions LTD - DH1 1TW
- Mobius Training and Consultancy Limited - DH1 5TS
- Northern Counties Safety Group Ltd - DH1 1ST
- Opus CNC Ltd - DH1 1TH
- Starpoint Adaptive Optics - DH1 3BD
- Workwear Express - DH1 1TF
- Workwear Express Ltd - DH1 1TN