Receivers for Mainzeal have made a number of staff redundant.
The receivers from PricewaterhouseCoopers say with the suspension of work on all Mainzeal sites, they have found it necessary to review the company's staffing levels in order to urgently reduce cash operating costs.
PwC has confirmed that 200 people have lost their jobs.
Receivers will be been assessing all construction sites and plan to speak to all site owners within the coming days.
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