It says they show the department was âfeeding its contacts into the procurement processâ and that value for money was only raised âif prices were more than 25 per cent above the averageâ.
Rachel Reeves, the shadow Cabinet Office minister, accused ministers of âputting the profit of their friends and donors above NHS workers who urgently needed PPE at the height of the crisisâ.
âThe deeper you delve into this Tory governmentâs Covid outsourcing, the more disturbing it gets,â she said.
âNot only were some of these âVIPsâ paid over the odds â in one case for unusable PPE â they were awarded these contracts at the height of the crisis when our NHS workers needed urgent, high quality PPE.â
The Good Law Project alleges that companies were able to âmake enormous marginsâ of up to 45 per cent âon contracts sometimes worth hundreds of millions of poundsâ.
It is highlighting contracts to three companies, all with connections to Conservative figures, worth more than Â£500m in total.
Ms Reeves added: âLabour has previously called for an investigation from the National Audit Office into this governmentâs strange procurement decisions. It is vital this new evidence is included.â
The NAO is already looking into deals worth more than Â£830m which were awarded to at least 12 different companies, earlier in the year.
Controversy surrounds a Â£32m contract handed to a pest control company called PestFix to source surgical gowns, although it had listed net assets of only Â£18,000.
Public First was given Â£840,000 to assess the effectiveness of the governmentâs coronavirus advice, although it was also listed as being to prepare for completing Brexit.
The company is co-owned by James Frayne, who was employed by Michael Gove when he was education secretary, alongside Dominic Cummings â now the prime ministerâs chief aide.
Critics protested that the work was not advertised, there was no competition and that no official notice of the award was published.
A government spokesperson said: âWe have been working tirelessly to deliver PPE to protect our health and social care staff throughout the pandemic, with more than 4.4 billion items delivered so far and 32 billion items ordered to provide a continuous supply to the frontline over the coming months.
âProper due diligence is carried out for all government contracts and we take these checks extremely seriously.â