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The buy-out of CIO Connect was supported by investment from Shackleton Ventures, which specialises in direct secondary venture capital investments.
The new owners have promised further investment as part of the plans to enhance the membership organisation dedicated to CIOs and their teams.
"Independence allows us to completely dedicate our organisation to the CIO and their agenda," said Kirkland.
He said that as an independent, commercial organisation the success of CIO Connect was now "inextricably tied" to the success of its members.
Michael Gough, NCC's chief executive, said, "This additional investment in CIO Connect will enable it to grow to the next level and allows NCC to focus on its mission of championing the effective deployment and professional management of IT within the UK."
Hugh Stewart, managing partner of Shackleton will join the new board. He said, "I am delighted to be backing Nick and his team to acquire CIO Connect. They have excellent ideas for extending CIO Connect's range of services."