More than 80 potential innovation partners have come forward with expressions of interest to help Heathrow build a third runway.
Companies have shown interest in sharing ideas around sustainability, service innovation, building design, cost efficiencies and commercial concepts over the past six weeks.
The list of those being taken forward will be announced in late August.
The remaining potential innovation partners will then be invited to submit a business case and implementation plan demonstrating the feasibility of their idea.
The initiative sets out to encourage fresh thinking around how Heathrow delivers the expanded airport – one of Europe’s largest, privately funded infrastructure projects costing billions of pounds.
Heathrow Expansion executive director Emma Gilthorpe said: “Following an overwhelming majority of cross party MPs showing their support for Heathrow expansion, the team is focused on delivering our commitments and ensuring the project is implemented in the most responsible way.
“This includes making sure we have the best technology and delivery methods available to us when building the new runway and associated infrastructure.
“The response to our call for expressions of interest has been extremely positive and I am really excited to move to the next stage, where we will compile a long list form all the great ideas put forward.”
She added: “Now we have had the stamp of approval from government for our north-west runway we can press ahead with finalising the scheme.
“We have been refining our plans as a result of a wide range of stakeholder feedback and we will launch the final public consultation on a preferred masterplan in early 2019 ahead of preparing our development consent order submission in 2020.
“We have been exhaustive in our exploration of options and mitigations throughout this process and it is only right that we put our thinking to the test one final time.
“By asking the best in Britain to challenge our thinking, we will ensure no stone is left unturned in the delivery of excellence for our customers and communities.”