Monadelphous Group Ltd. is a holding company, which engages in the provision of construction, maintenance, and industrial services to the resources, energy, and infrastructure sectors. It operates through Engineering Construction; and Maintenance and Industrial Services divisions. The Engineering Construction division provides large scale and multi-disciplinary project management, construction, and electrical and instrumentation installation services. The Maintenance and Industrial Services division specializes in the planning, management and execution of multi-disciplinary maintenance services, shutdowns, and minor capital works. The company was founded in 1972 and is headquartered in Perth, Australia.