What a Chief Digital Officer is

A Chief Digital Officer (CDO) is the senior executive responsible for an organisation’s digital strategy: using technology, data and new operating models to change how the business creates value, reaches customers and competes. Where a traditional technology leader keeps systems running, the CDO is accountable for transformation, turning digital capability into revenue, better customer experience and faster ways of working. It is a business leadership role that happens to be rooted in technology, not an IT support role.

The clue is in the order of the words. Digital comes before officer because the mandate is change. A good CDO sits on or close to the executive team, owns a transformation agenda the board can measure, and connects the dots between marketing, product, operations and IT. For a fuller picture of how digital leadership sits alongside security and infrastructure, our IT strategy consulting and digital transformation for the mid-market pages cover the territory in detail.

What a Chief Digital Officer actually does

Day to day, the role is less about writing code and more about deciding where digital effort earns its keep. A CDO sets the digital vision, builds the business case, sequences the programme and holds delivery to account. They translate vague boardroom ambition into a roadmap with owners, milestones and a budget, then make sure the organisation can actually absorb the change.

In practice the work tends to cluster around a few themes:

• Setting digital strategy and tying it to commercial outcomes the board recognises, the same discipline covered in our board IT strategy work.
• Reshaping customer journeys, products and channels so they are designed digital first.
• Turning data into a usable asset for decisions, pricing and personalisation.
• Bringing artificial intelligence into the business deliberately, with guardrails rather than guesswork, which is where AI governance and the risk of unsanctioned tools, or shadow AI, become a CDO concern.
• Leading change so the people side keeps pace with the technology side.

The role also lives next to risk. Every new digital channel widens the attack surface, so a credible CDO works closely with security leadership and treats resilience as part of delivery, not an afterthought. That overlap is why many organisations look at combined leadership through a fractional CIO and CISO arrangement.

When a business actually needs a CDO

Not every company needs a Chief Digital Officer, and hiring one too early wastes money. The role earns its place when digital is central to how you compete, when transformation has stalled because no single executive owns it, or when the board wants change but the existing IT function is fully occupied keeping the lights on.

Mid-market and private-equity-backed businesses feel this most sharply. Growth plans depend on digital, but the cost of a permanent CDO is hard to justify against a programme that has a beginning, a middle and an end. That is exactly the gap a part-time or interim arrangement fills, and our interim CIO leadership gap page sets out how to bridge it. If you want to weigh the cost of permanent versus fractional leadership, the CIO and CISO cost calculator makes the comparison concrete.

CDO versus CIO, CTO and other leaders it is confused with

The titles overlap, which is why they get muddled. The simplest way to separate them is by what each one is accountable for.

The Chief Information Officer (CIO) owns the technology that runs the business: systems, infrastructure, the IT operating model and the budget behind it. The Chief Technology Officer (CTO) is usually focused on the technology you build, particularly product engineering. The Chief Digital Officer owns digital change across the whole business, often working across the CIO and CTO rather than replacing either. In smaller organisations one person carries more than one of these hats, which is common and sensible. Our virtual CIO service exists precisely for businesses that need that breadth without a full-time appointment.

There is a separate confusion worth clearing up. CDO can also stand for Chief Data Officer, a distinct role focused on data governance, quality and analytics. The two work hand in glove, but they are not the same job. And none of these roles should be confused with the security leadership provided by a CISO. If your priority is protecting the business rather than transforming it, the virtual CISO and what is a vCISO pages are the better starting point, and CISO as a service explains how that capability is delivered.

The CDO and digital risk

Transformation without security is fragile. As a CDO moves the business onto new platforms, the board’s exposure to cyber risk grows, and so does the cost of getting it wrong. The IBM Cost of a Data Breach Report 2025 put the global average breach at USD 4.44 million, and the regulatory side is just as real in the UK, where the ICO fined British Airways £20 million in 2020 and Interserve £4.4 million in 2022. A digital leader who ignores this is building on sand.

This is why good digital programmes carry security as a design principle. That means board-level oversight through board cyber governance, a tested incident response plan, sober ransomware readiness, and where it applies, alignment with NIS2 compliance. For regulated sectors the bar is higher still, as our cyber security for financial services page makes clear, and broader programmes are supported by cyber security consulting.

How Starkhorn provides digital leadership

Most mid-market businesses do not need a permanent Chief Digital Officer. They need senior digital leadership for a defined period or a defined programme, with the authority to make decisions and the judgement to make the right ones. Starkhorn provides that on a fractional or interim basis: a single experienced leader who can set the digital agenda, oversee transformation, and keep security and risk in step with the pace of change. Transparent commercial terms are set out on our pricing page, and where a deal or investment is involved, technology due diligence sits naturally alongside the leadership work.

Why Starkhorn

Starkhorn is led by Daniel J. Jacobs, who has spent over 20 years in technology and security, 15 of them in leadership roles, including Interim Group Technology Director at VetPartners, the BC Partners-backed veterinary group, and CIO and CISO at Jardine Motors Group. He is the author of The Strategy Bridge and holds PRINCE2, ITIL Foundation and full membership of the Institute of Interim Management.

That experience leading technology and transformation inside a private-equity-backed group and a national motor retailer is exactly the background a Chief Digital Officer role demands: setting a digital agenda, running change at scale, and keeping security and delivery moving together.

Frequently asked questions