The 2015 CIO 100 will be revealed on April 23, 2015 at an exclusive event at London's newest and much talked about venue, the ME Hotel.

CIO UK Editor in Chief Mark Chillingworth said: "Response this year has been incredible, with over 200 CIOs entering from every type of organisation you can imagine. It was a hard task for judges and editorial team to narrow the list down to 'just' 100 CIOs with transformational stories."

The CIO 100 is created each year by the team behind CIO UK to recognise the contribution CIOs have made to business transformation over the previous year.

"This listing awards the IT leaders for their zeal in enabling change in their organisations through business technology leadership," Chillingworth said. "Being included in the CIO 100 is the award, rather than where you are placed in it. That said, every year the judging panel spend considerable time on the list and in particular the top 30 who are CIOs achieving significant transformation."

Final judging for the CIO 100 takes place on March 26th, 2015.

In previous years the CIO 100 has recognised CIOs that achieved major change to their organisation and the use of technology. Trevor Didcock, outgoing CIO of Europe's largest airline easyJet was recognised for his leadership of an organisational wide transformation while operating a very low IT budget. When CIO of London's UCLH hospital, James Thomas delivered a technology strategy that highly influenced IT vendors serving the NHS and delivered a surplus at the NHS trust that has enabled it to create new age healthcare to cancer patients, while in 2014 Nissan Europe's Stephen Kneebone was recognised for his cross-organisational approach to making an automotive organisation embrace digital and retail methods.