APA Group engages in the energy infrastructure business in Australia. The company operates through Energy Infrastructure, Asset Management, and Energy Investments segments. It operates gas transmission and interconnected grids, gas-fired power stations, solar and wind farms, and battery energy storage systems, as well as provides gas storage, processing, and compression facilities. It also provides asset management and operating services to its energy investments and third parties; and invests in energy infrastructure. In addition, the company engages renewables projects; project construction process, such as horizontal directional drilling construction, pipeline construction process, open-trench construction, and pipeline construction process; and bundled energy systems. Further, it engages in electricity generation. The company also has interests in approximately 15,000 kilometers of gas transmission pipelines; approximately 29,500 kilometers of gas mains and pipelines; and 1.5 million gas consumer connections; and approximately 800 kilometers high-voltage electricity transmission, including 290 kilometers deep-sea cable. The company is headquartered in Sydney, Australia.