Rumours of the demise of the Consulting Association’s former chief officer Ian Kerr have been circulating the industry for several days.
Kerr recently appeared in front of the Scottish Affairs select committee to explain his role in the blacklist.
Committee officials confirmed news of his death earlier this week.
It is believed he died from heart failure.
Kerr was expected to be a key witness in a test case being brought against Sir Robert McAlpine by blacklisted workers