- A A Flags - DH8 5PY
- Bespoke balustrades - Dh8 7as
- D J H Engineering Ltd - DH8 6BP
- Devine Chemicals Ltd - DH8 7PW
- DJH Engineering - dh8 6bp
- Grorud Engineering Ltd - DH8 8JA
- GT Project Engineering - DH8 7LQ
- H & M Health & Mobility - DH8 5RL
- Indoor Cooling Ltd - DH8 5PY
- Industrial Workwear Ltd - DH8 6BP
- Joinery & Furniture Solutions - DH8 5NW
- K C Engineering Ltd - DH8 9HU
- Labone Castleside Ltd - DH8 8HF
- Lamplas (Durham) Ltd - DH8 8JA
- Mac Security & Fire - DH8 9HU
- Microbac Ltd - DH8 6TJ
- Paul & Loughran Ltd - DH8 6SR
- Premiair Comfort - DH8 5XP
- Qualitek Safety Ltd - DH8 0LY
- Rand Rocket - DH8 7NU
- Safeguard Security N E Ltd - DH8 6TJ
- Security Print Solutions Ltd - DH8 6TW
- Turfcare Specialists - DH8 6LA