Turner and Townsend will be project managers, while architects Cooper Cromar are to prepare a masterplan for a new town centre.
The team is completed by Muir Smith Evans, URS Corporation, Grontmij, DSSR, Colin Buchanan, Gleeds, Keppie Design and Heritage Environmental.
The regeneration scheme is one of the largest in Europe. The £500 million second phase will be constructed over the next 15 to 20 years and comprises a shopping complex with leisure, restaurant and community facilities.
It will be served by a new railway station and bus interchange along with dual carriageway access from the M8 and M74.
Planning briefs will also examine options for an industrial area and business park and detail future costs, including the level of public funding required.
The regeneration is being overseen by Ravenscraig Ltd, comprising Corus, Scottish Enterprise and Wilson Bowden, and will eventually be home to 10,000 people.
A new Motherwell College campus and a regional sports facility have already been completed and work is under way on the first 850 homes.
"It has always been our ambition to create a vibrant destination with a distinct identity and real sense of place and community where people will want to live and work," said Ravenscraig project director Jim Fitzsimons. "These plans are the next step in helping us realise that goal."