Branches of builders merchants Travis Perkins were among those defrauded of thousands of pounds by eight people last year.
All eight, who come from Gwent, have pleaded guilty to conspiracy to defraud by making false representations by cashing cheques from a company, knowing that no bank would honour them.
According to the South Wales Argus, the defendents set up four businesses – Cost One Ltd, Carillion Road Services Ltd, Platinum Recruitment Ltd and Accident and Injury Legal Services in 2008 – in order to obtain bank accounts and cheque books. They then contacted business including Travis Perkins and Tiles to Go and, claiming to be company employees, persuaded them to cash cheques.
Between them, they defrauded the businesses of over £118,000.
The case will be re-listed to continue at a later date.