The RHA (Road Haulage Association) has urged the Government to support its members who have been affected by Carillion going into liquidation.
Many companies in the infrastructure sector will be affected by the collapse, as will large road upgrade schemes such as the smart motorway programme which Carillion was involved in delivering.
Richard Burnett, RHA chief executive, said: "Thousands of suppliers are at risk of not being able to claim all the money they’re owed, putting their future and tens of thousands of jobs in jeopardy.
“We urge the Government to move swiftly to offer every support to businesses vulnerable to the after-shocks of Carillion’s collapse.
“Likewise we call upon them to ensure work on infrastructure projects on the road network our economy relies on continue without disruption.”