- Pneumatic Services Yorkshire Ltd
- Address:36 whitehill crescent
- Ekspan
- Address:
- Coburn Technologies
- Address:
- F. G. H. Air Brake Ltd
- Address:F. G. H. Air Brake Ltd
- Heap and Partners
- Address:Canada Works, Corporation Road, Birkenhead
- Grip Pneumatics Limited
- Address:960 Capability Green
- Hindle Controls
- Address:Caledonia Street
- Fluid-Ar Components
- Address:Sir Thomas Longley Road
- Benetec
- Address:Consul Rd
- Aquaculture Ltd.
- Address:Unit 3, Parkway One, Parkway Drive
1