A CIO, or chief information officer, is the senior executive responsible for the information systems a business runs on. The CIO aligns technology with business strategy, owns systems such as ERP and CRM, oversees infrastructure, data and cyber risk, and makes sure technology spending delivers measurable value.
What the role covers
The CIO faces inwards, towards how the business operates. Responsibilities include the IT strategy and roadmap, major system selection and implementation, supplier and contract management, data and information governance, and working with security leaders on cyber resilience.
A modern CIO is as much a business leader as a technologist, translating operational goals into a programme of systems, process and data change.
How it works in a UK business
In UK mid-market firms the CIO typically reports to the CEO or CFO and sits on the executive team. Smaller businesses often give the same remit to an IT director, who tends to be more hands-on with day-to-day IT operations.
The role becomes critical during ERP projects, acquisitions, regulatory change and AI adoption, when technology decisions shape the whole business.
The fractional option
Many businesses need CIO-level strategy for specific programmes rather than every day. A fractional CIO leads the roadmap, major projects and supplier decisions part-time. Leadership Services provides fractional CIOs from its bench of senior directors, from £1,795 per month.
Frequently asked questions
What does a CIO do day to day?
A CIO sets technology priorities with the executive team, oversees major system projects, manages suppliers and budgets, reviews cyber and data risks, and reports to the board on how technology supports the strategy. Routine support and operations are usually delegated to an IT manager or a managed service provider.
Is a CIO the same as an IT director?
The roles overlap. A CIO is usually more strategic and sits on the executive team, while an IT director is often more operational, running the IT team and services. In many UK SMEs one person covers both, and the title reflects seniority and scope.
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Last updated: 5 November 2026