The shortlisted firms are:
Gardner Stewart Architects
Latz and Partners
The two-mile Lea River Park will connect the Olympic Park to the Thames at the East India Dock Basin.
Over the next three years the London Thames Gateway Development Corporation will invest £28 million to drive forward the first phases of the new Lea River Park
They will work in partnership with Design for London and the Lee Valley Regional Park Authority.
An LTGDC representative said detailed designs would only be drawn up once a firm had been appointed - by the end of this year.
She added: “Our view is that the firms’ designs and plans should be based on really close working with the client and consultation with local communities in the area.
“At the moment we are looking at their past work and understanding of the area. We need to make sure they are going to be the right fit for the project.”
London Thames Gateway Development Corporation chief executive Peter Andrews said: “The successful design tender will need to display a deep understanding of the nature of the Lower Lea Valley and the importance of regeneration to the area and the community.”
Over 30 submissions were evaluated by a team led by LTGDC including Design for London, the Lee Valley Regional Park and project manager, Drivers Jonas.