Each year the CIO 100 showcases the UK's leading CIOs, and in 2015 the judges recognised Halfords CIO Anna Barsby, glh.Hotels CTO Chris Hewertson, and then Hyperion Insurance CIO David Jack as the business and technology leaders driving transformation and change at their organisations.

Here we take a visual look at some of the themes and responses from the CIO 100, including the primary strategies of the CIO, their executive and board level influence, the role of the CIO as digital leader, and how technology executives are responding to the IT skills gap.

CIO 100 infographic