Bid-rigging is a "cartel" and a "particularly serious type of anti-competitive activity", which needs urgent attention from UK IT and other industries, the Competition and Markets Authority [CMA] has warned.
The insights appeared in an open letter the CMA sent to the government earlier this week, in which bid-rigging for contracts is identified as leading to overcharges to customers by as much as 20 per cent of a contract's worth, as well as costing UK taxpayers "millions of pounds".
It has also been stated that contract law currently offers no protection to these practices.
In reaction to the letter, Procurement and contract lawyer Louise McKee of Pinsent Masons stated that "no contract is protected against the risk of bid-rigging, whether it concerns contracts in the construction market or services sectors".
"The CMA's interest in this area will help support contracting bodies against attempts by suppliers to control the market," said McKee, speaking to Pinsent Masons' Out-law.com.
"The CMA has powers to take enforcement action against those engaging in bid-rigging, so its campaign should serve as a warning to those 'gaming the system', as the CMA has put it, that their illegal activities are likely to be spotted and punished."
John Kirkpatrick, senior director of advocacy at the CMA, stated in the letter:
"Where businesses compete to win contracts, purchasers get fair prices, good service and choice, including more innovative products or services.
"However, if companies collude when bidding for contracts, purchasers end up spending more than necessary."
Kate Craig-Wood, founder of cloud hosting firm Memset, said last week that the government's Digital Marketplace is "broken", criticising "the hideousness of old boys' networks and closed procurement systems" as a behaviour pattern holding back the vision of a transparent, free market in which SME suppliers can stand up next to large, often incumbent, vendors.
"Most buyers only go there once they have already worked out what they want to buy and from whom," said Craig-Wood.
Kirkpatrick's letter flags up a number of bid-rigging tactics, which include 'bid rotation', where suppliers agree to take turns supplying the most attractive bids, and 'cover pricing', where companies agree to overinflate their prices to deliberately place themselves outside a realistic bid in order to give way to a rival.
With 'bid suppression', companies may sometimes agree not to submit bid at all, according to Kirkpatrick, in exchange for payment from rival companies.
Holders of bitcoin could find themselves with free 'bitcoin cash' following a hard fork - but only if they have their private key
Ryzen shine: New microprocessors help boost AMD revenues by 19 per cent to $1.22bn in second quarter
Successful launch of Ryzen 5 and 7 CPUs helps boost sales at AMD
Flagship device also supports firm's modular MotoMod add-ons
Comes just week after firm announced plans to bin the service