Gentrack Group Limited engages in the development, integration, and support of enterprise billing and customer management software solutions for the energy and water utility, and airport industries in Australia, New Zealand, the United Kingdom, and internationally. It operates in two segments, Utility Billing Software and Airport Management Software. The company offers Velocity, a billing and customer management platform for energy utilities, distributors, and water companies; and Junifer, a billing and customer information system for utility providers. It also provides Evolve Analytics, a solution for data accuracy and portfolio management; and Airport 20/20, BlipTrack, and Concessionaire Analyzer+, which offer operation solutions. The company was founded in 1989 and is headquartered in Auckland, New Zealand.