Power Line Engineering Public Company Limited, together with its subsidiaries, operates in civil construction, real estate, and the installation of electrical, air conditioning, sanitary, and fire protection systems in Thailand. Its services include infrastructure, road work, water treatment, factory and power plant construction, and building construction. The company also installs communication, ICT, security, ventilation, electrical power, and plumbing systems, and is involved in property development. Incorporated in 1988, it is based in Bangkok, Thailand.