John Wood Group Plc is an energy service company, engaged in providing engineering, production support, maintenance management and industrial gas turbine overhaul and repair services to the oil and gas and power generation industries. The company operates business through three segments: Engineering, Wood Group PSN and Wood Group GTS. The Engineering segment offers services to the upstream, subsea and pipelines; downstream and industrial and clean energy sectors. The Wood Group PSN segment offers field support to producing assets through Brownfield engineering and modifications, production enhancement, operations and maintenance, training, maintenance management and abandonment services. The Wood Group GTS is a provider of rotating equipment services and solutions for clients in the power, oil and gas and clean energy markets. The company was founded by Ian Wood in 1982 and is headquartered in Aberdeen, the United Kingdom.