PT Wijaya Karya (Persero) Tbk is an engineering and construction firm focusing on construction, large infrastructure projects, energy plants, real estate, and other developments. It constructs transportation networks for public systems and builds residential and commercial buildings for various end markets. The company works throughout the entire construction process, from planning and design to building and repairing existing structures. Wijaya Karya has four business segments: infrastructure and buildings, energy and industrial plants, realty and property and industry. The company is controlled by the Indonesian government.