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 pipelines and interconnected grids, gas-fired power stations, electricity transmission interconnectors, solar and wind farms, and battery energy storage systems, as well as gas storage, processing, and compression facilities. 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. It also provides asset management and operating services to its energy investments and third parties; and invests in energy infrastructure. The company is headquartered in Sydney, Australia.