Drill string and bottom hole assembly components in United Kingdom
- Baker Hughes
- Tercel Ltd
- B J Tubular Services
- Smith International - A Schlumberger Company (North Sea)
- Carrack Ltd
- Black Gold Oil Tools Ltd
- Powerkut Ltd
- Carroll Tools Ltd
- Venture Oilfield Services
- Global Oil & Gas Procurement Services Gogps Ltd
- B R C
- The Construction Centre
- Knighton Tool Supplies
- B R C Reinforcements Ltd
- Mobility Oil and Gas Limited
- D C M Drillquip Ltd
- Soumac Assembly Services
- Cutting & Wear Resistant Development Ltd
- E W Fuel Management Ltd
- Bored Bar Engineering Ltd
- Drillwell Ltd
- B R C Ltd

Oil and gas