Infratil Limited is a New Zealand-based infrastructure investment company. It owns renewable energy, digital infrastructure, airports, and healthcare assets with operations in New Zealand, Australia, Asia, the US and Europe. Infratil was founded by the late Lloyd Morrison, a Wellington-based merchant banker. Morrison's company, Morrison & Co, morrisonglobal.com is responsible for Infratil's management and administration.

Wellington International Airport is an international airport located in the suburb of Rongotai in Wellington. It lies 3 NM or 5.5 km south-east from the city centre. It is a hub for Air New Zealand and Sounds Air. Wellington International Airport Limited, a joint venture between Infratil and the Wellington City Council, operates the airport. Wellington is the third busiest airport in New Zealand after Auckland and Christchurch, handling a total of 3,455,858 passengers in the year ending June 2022, and the third busiest in terms of aircraft movements. The airport, in addition to linking many New Zealand destinations with national and regional carriers, also has links to major cities in eastern Australia. It is the home of some smaller general aviation businesses, including the Wellington Aero Club, which operates from the general aviation area on the western side of the runway.