Dyer & Butler Ltd
- Queensgate House/48 Queen St
- Exeter
- EX4 3SR
- Tel: 01392 499879
Harper
- Unit 1/Cowley Bridge Rd
- Exeter
- EX4 4NX
- Tel: 01392 422000
Roadform Civil Engineering Co Ltd
- Roadform Ho/Milber Trading Est
- Newton Abbot
- TQ12 4SG
- Tel: 01626 331564
Robert Sir McAlpine Ltd
- Derriford Rd
- Plymouth
- PL6 8DH
- Tel: 01752 781831
South West Highways Ltd
- 3 The Cr
- Plymouth
- PL1 3AB
- Tel: 01752 204914
