Global Infrastructure Partners, who paid £1.5 billion for Gatwick and has also owned London City since 2006, has given its strongest indication yet that it intends to bid for the city airport after hiring RBS as its adviser.
The company is intending to work with the city council and Scottish Government on a bid, it was reported.
Earlier this month, a report by the city council confirmed that the airport will be formally brought to the market in January 2012, with a view to agreeing a sale in the summer.
Dave Anderson, director of city development, said at the time: “The airport is vital to the future economic growth of Edinburgh and the country as a whole.
“We would like to see the new owners fully acknowledge this important role.”