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Fractional CTO for UK Mid-Market Businesses

Most businesses between 100 and 2,000 people reach a point where the technology decisions have outgrown whoever is currently making them, and a full-time Chief Technology Officer is still the wrong answer. A fractional CTO gives you that seniority one to three days a week, from someone who has held the role rather than advised on it, and our founder spent 30 years in technology leadership including CTO and CIO roles across legal, insurance, finance and higher education.

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When 01

When a fractional CTO is the right answer, and when it is not

The clearest case is a business where technology has become material to the strategy but does not yet justify a permanent executive. You have a capable delivery team and no one setting the architecture. You are being asked for a three-year technology plan by a board or an investor. You are carrying a decision about a core system replacement that nobody feels senior enough to own. Those are all problems of judgement rather than capacity, and hiring more delivery people will not solve any of them.

A full-time hire is the right answer when the work is genuinely full-time and continuous, which for a business of this size it often is not. The cost is also rarely just the salary, because a technology executive at this level comes with employer National Insurance, pension, benefits, recruitment fees and the risk of a mis-hire in a role where a wrong appointment is expensive to unwind.

An interim CTO is different again, and the distinction matters more than the similar job titles suggest. Interim work is full-time and finite, usually covering a gap or running a specific programme to a defined end. Fractional work is part-time and ongoing. We have set out the difference properly in fractional CTO versus interim CTO, including which one a given situation actually calls for.

The role 02

What the role actually covers

The technology strategy and the roadmap behind it, owned end to end rather than assembled once and left. That includes the architecture decisions that are expensive to reverse, and being the person who says no to the ones that are not worth making.

The operating model, meaning how work gets from a request to something running in production, who owns what, and where the accountability sits when it goes wrong. In most mid-market businesses this is the thing quietly costing the most, because the technology is usually adequate and the way it is delivered is not.

Vendor and supplier oversight, which is where a great deal of avoidable money goes. Someone who has sat on the buying side of these contracts reads them differently, and being independent of the vendors means the recommendation is not shaped by a partnership you cannot see.

Governance, security and risk at a level a board will accept, which in a regulated business is not optional. Our founder held SMF24 senior manager accountability at two UK insurers, so this is familiar territory rather than a framework applied from outside.

And the team. Structure, hiring, mentoring the people who will eventually not need a fractional CTO at all, which is the outcome to aim at rather than an admission against interest.

Which one 03

Fractional CTO or fractional Chief AI Officer?

These get conflated constantly and they are not the same job. A fractional CTO owns the whole technology function, and AI is one part of it alongside architecture, delivery, security, vendors and team. A fractional Chief AI Officer owns AI specifically: the strategy, the governance, the vendor oversight and the board reporting for that programme alone.

The practical test is what your board is actually asking for. If the question is "what is our technology strategy and who is accountable for it", you want a CTO. If you already have a technology function that works and the gap is that nobody owns AI, you want the narrower role, which is our Grow engagement.

Plenty of businesses need the first and think they need the second, because AI is the thing currently generating board questions. Part of the value in a first conversation is establishing which of those you are, and we would rather tell you that you need less than you were expecting than sell you the larger engagement.

How it works 04

How the engagement runs

Typically one to three days a week on a monthly retainer, with the number of days agreed before we start rather than billed by the hour, so the cost is predictable and neither of us is watching a clock. It flexes as the work matures, which usually means more at the start and less once the operating model is running.

The person you meet is the person who does the work. There is no team of juniors behind this and no account manager between you and the person making the decisions, which is the whole point of buying seniority by the day rather than by the headcount.

We scope every engagement individually rather than publishing a rate card, because the right number depends on the size of the business, the state of the estate and how much of the week you actually need. You will get a straight figure in the first conversation.

Reading 05

Related reading

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Contact 06

Talk to us about a fractional CTO

Tell us what your board is asking for and what your technology function looks like today, and we'll tell you whether this is the right shape of help, including when it is not. We reply within one working day.

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