Gregor Duncan Roberts

Rayfern Ltd. provides asset care repair and maintenance services. The company was founded in 1982 and is headquartered in Peterborough, the United Kingdom.

Edwin James Holdings Ltd. provides facilities engineering company. It offers technical services, process services, and mechanical and electrical building service. The company was founded by Edwin James Stiell in 1911 and is headquartered in Glasgow, the United Kingdom.

WT Parker Holdings Ltd. functions as a holding company that provides mechanical and electrical contraction services through its subsidiaries. The private company is based in Burton-on-Trent, UK.

EJ Parker Technical Services Group Ltd. provides mechanical and electrical engineering services. It offers cable installation, electrical building services, mechanical building, network communications, renewable energy solutions, and parker electrical-installation, maintenance, and repair (IMR). The company was founded by W.T. Parker in 1992 and is headquartered in Birmingham, the United Kingdom.

Alfred McAlpine Plc provides construction and civil engineering services. It is engaged in designing, building, managing and supporting IT infrastructures. The company operates through subsidiaries. It builds and constructs schools, hospitals, airports and roads. Alfred McAlpine is located in London, UK.

ASCO Group Ltd. engages in the provision of logistics services to the oil and gas sector. It offers offshore logistics, international freight management, personnel supply, and waste management services. The company was founded in 1967 and is headquartered in Aberdeen, the United Kingdom.

Ramco Oil Services Ltd. provides tubular and linepipe coating services. It operates under two divisions: Tubular Services and BSR. The Tubular Services Division provides the recovery of oil and gas from the reservoir to the surface. The BSR Division which is used in the distribution and transmission of oil and gas products. The company was founded in 1977 and is headquartered in Aberdeen, the United Kingdom.

The Electrical Contractors Association Ltd. was founded in 1916 and is the UK's leading trade association representing and supporting the interests of electrotechnical and building engineering services contractors. The private company is based in Sevenoaks, UK and has subsidiaries in United Kingdom. The British company's main focus is to provide support and representation to contractors in the electrotechnical and building engineering services industry.

EJ Parker Technical Services Holdings (Scotland) Ltd. provides mechanical, electrical, and plumbing contracting services. The private company is based in Glasgow, UK and has subsidiaries in the United Kingdom.

Part of EJ Parker Technical Services Holdings (Scotland) Ltd., Korrie Mechanical & Plumbing Ltd. is a British company that provides plumbing, heating, air-conditioning and electrical installation services. The company is based in Inverness, UK and was founded in 2010.

Enterprise Plc provides support and infrastructure maintenances services. The company was founded in 1964 and is headquartered in Oxford, the United Kingdom.

Part of EJ Parker Technical Services Holdings (Scotland) Ltd., Ingen Technical Services (Central) Ltd. is a British company that provides mechanical and electrical contracting services. The company is based in Glasgow, UK and was founded in 2009.