Andries Liebenberg

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.

Britannia Construction Ltd. provides construction services which include feasibility studies, cost advice, procurement and construction. It offers land remediation, civil engineering, rail infrastructure, nuclear decommissioning and structural refurbishment. The company was founded in 1960 and is headquartered in Cheltenham, the United Kingdom.

The Civil Engineering Contractors Association provides civil engineering construction services. The private company is based in Westminster, UK. The CEO of the British company is Alasdair Reisner.

Amco Group Ltd. operates as a holding company with interest in construction, property development, plastics and drilling services. It provides construction, engineering, design, and project management services to the rail, energy, engineering, materials handling, utilities, ports, environment, waterways, local authorities, transport, and nuclear markets. The company was founded in 1970 and is headquartered in Aberford, 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.

Founded in 1957, YJL Ltd. is a holding British company under Renew Holdings Plc that constructs commercial buildings through its subsidiaries. The company is based in Leeds, UK.

Giffen Holdings Ltd. specializes in mechanical, electrical and power services within the railway environment, working for both network rail and London underground as well as a select number of train operating companies. The company is headquartered in St. Albans, the United Kingdom.

Part of Renew Holdings Plc, Amco Group Holdings Ltd. is a holding British company that operates in the construction, property development, and drilling services industries. The company is based in Aberford, UK and was founded in 2008.