The number of firms vying for the right to develop a hotel at Hartsfield-Jackson International Airport has been whittled down to three.

Six companies had thrown their hats into the ring to get pre-qualified to compete for the contract to develop an airport hotel along with office space and a travel plaza. Now, the city of Atlanta has deemed three of those firms eligible to submit proposals: Airmall USA; a Regent Partners joint venture; and a team of Carter, Majestic Realty Co. and GPM Investments LLC.

Others that did not make the cut were Stamford Bridge Capital LLC, Arcadd Inc. and Grove Street Partners.

The next step for the airport is to solicit proposals from the three qualified companies and eventually choose a winner.

The project could amount to as much as a $600 million investment by the winning firm, according to Hartsfield-Jackson general manager Miguel Southwell. The airport envisions a hotel next to the domestic terminal, along with a nearby gas station/convenience store and mixed-use office development. Southwell said the airport has also not ruled out residential development at the airport as part of the project.

The hotel would be a short walk from the domestic terminal, just outside the exit on the west side of the terminal.