Power Line Engineering Public Company Limited, together with its subsidiaries, engages in the design, engineering, and installation of mechanical and electrical systems for private and government sectors in Thailand and internationally. It operates through System Installation and Construction, and Real Estate Development segments. The company is also involved in the installation of telecommunication, air conditioning, sanitary and plumbing, and fire protection systems; and civil construction operations in the areas of super structures, reinforced concrete roads, diaphragm and curtain walls, and tunneling and site drainage facilities. Power Line Engineering Public Company Limited was founded in 1988 and is headquartered in Bangkok, Thailand.