The prisons builder ISG has fallen into administration in the largest construction company collapse in Britain since Carillion failed in 2018, with the loss of more than 2,000 jobs.
The failure of ISG, the UK’s fifth largest construction company, could have reverberations across government, where it is a main contractor for the Ministry of Justice, building and upgrading prisons; the Department for Education, for which it builds and fits out schools and colleges; and Network Rail.
In total ISG is involved in 69 central government projects worth more than £1 billion.
The company, formally known as Interior Services Group, was put into administration on Friday after months of speculation amid a string of high-profile project failures. The construction services company had been trying to find