Jason Martin Davy

Amalgamated Construction Ltd. provides construction and engineering services. The firm creates and maintains assets for both public and private sector customers in the specialist sectors of rail and engineering. The company was founded in 1970 and is headquartered in Barnsley, the United Kingdom.

Giffen Group Ltd. provides electrical, mechanical and civil engineering services. It offers electrical installation services to the railway industry and commercial and industrial development projects, as well as public bodies, such as governmental departments, NHS and HM prisons, and MoJ, electrical testing services and civil and building construction services, including fire stopping, platform extension works, copers and fencing and other services for railway, commercial and industrial sectors. The firm also engages in supplies, installs, commissions and maintains mechanical systems that comprise air-conditioning and ventilation systems and security and communications systems. The company was founded in 1909 and is headquartered in St. Albans, the United Kingdom.

Rhodar Ltd. offers asbestos removal, demolition and remediation services. The company was founded in 1976 and is headquartered in Leeds, the United Kingdom.