- Alpha Process Controls International Ltd - Peterlee
- Berger Closures - Peterlee
- Gliderol Self Storage Solutions - Peterlee
- GT Seals and Mouldings - Peterlee
- Iris - Peterlee
- Ivic Ltd - Peterlee
- L&B Security Services - Peterlee
- Mecaplas - Peterlee
- North East Labgear - Peterlee
- Peterlee Fire Company - Peterlee
- Seaward Electronic Ltd - Peterlee
- Sotech - Peterlee
- Steadfast Group - Peterlee