An analysis of submissions made on the annual budget, and a separate independent survey showed about 55 per cent public support for the sale of at least some of the council’s stake.
The Australian said the sale was likely to attract big international investment firms pitching their talents, including UBS, Macquarie and Goldman Sachs, while the likes of JP Morgan, Citi, and Credit Suisse - which had worked with the airport company before - would also be contenders.
Local investment firms Forsyth Barr, Jarden Securities and Craigs Investment Partners would also likely partner up with overseas contenders.
The airport company, which has been reporting increasing passenger numbers and the return of more foreign airlines, has unveiled plans for a $3.9b redevelopment of its terminals and other facilities, attracting strong reaction from airlines.
At current market prices, the council’s 18 per cent stake is worth about $2.3b.