| PIPELINE & UNDERGROUND SERVICES CONTRACTORS | ||
| Aegis Survey Consultants Ltd Patch Park, Ongar Road, Adbridge, Essex RM4 1AA, U.K. Location and 3D mapping of underground services | ||
| Avent Engineering Limited Manor Farmhouse, Biddestone, Chippenham, Wiltshire SN14 7DH, U.K. ISO 9002 Civil engineering contractor with environmental experience specialising in gas/water pipelines, mains service installations, reinforcement and renovation; Reservoir refurbishment; Period contractors; No Dig specialists | ||
| Drain Technology Ltd 39-41 Rough Hey Road, Ribbleton, Preston, Lancashire PR2 5AR, U.K. CCTV surveys, pipe linings | ||
| Johnston Construction Ltd Watling Street, Shawell, Lutterworth, Leicestershire LE17 6AS, U.K. Civil engineering contractor whose main activities are within the water industry; Pipework and sewer contractors; Specialist activities in pipejacking, tunnelling and mini-tunnelling contractors | ||
| Subterra Ltd Unit A1 Preston Enterprise Centre, Salter Street, Preston, Lancashire PR1 1NT, U.K. Underground services and sewer contractors; Trenchless technology contractors | ||