A fractional CMO in the UK typically costs between £3,000 and £12,000 a month depending on seniority and days per week, against £150,000 to £250,000 plus equity and employer costs for a full-time hire. For most B2B companies under £10m in revenue, fractional is the better trade: you are buying judgement, and judgement does not need to be in the building five days a week.
We operate from the UK (Leeds) alongside Barcelona and Malta, and we have sat in the full-time CMO seat at UK companies, including scaling one of Yorkshire's largest technology employers from £65m to £120m in revenue. Here is the honest map of the market.
What the UK market looks like
The UK has one of the deepest fractional talent pools in Europe, which cuts both ways: plenty of genuine former CMOs, and plenty of consultants who have rebadged themselves. The label is unregulated. The filter that works: ask what number they owned, at which company, and what happened to it. Partners answer in revenue; theorists answer in frameworks.
Three models dominate. Day-rate independents (£800 to £1,500 a day) suit defined projects. Fractional retainers (one to two days a week, £4k to £10k a month) suit ongoing leadership. Agency-attached "strategy directors" are usually a channel for selling the agency's execution: sometimes fine, rarely neutral.
When UK companies should go fractional
The pattern from the last few years of UK B2B: funding rounds got leaner, boards got less patient with unproven headcount, and AI collapsed the size of the team a CMO needs to manage. The result is that the classic trigger for a full-time CMO hire, "we raised a Series A, we should get a marketing leader", no longer holds. What Series A companies need is strategy, team design and a working growth engine, which is fractional-shaped work. The full-time hire belongs at repeatable revenue, usually £5m to £10m ARR.
There is a UK-specific wrinkle worth knowing: IR35. A properly structured fractional engagement, multiple clients, defined outcomes, genuine autonomy, sits outside IR35 in most cases, but structure it deliberately and take advice. A fractional arrangement that looks like a disguised employee creates tax risk for both sides.
What to expect from a good engagement
A defined mandate with an exit. Board-level reporting from month one. A team and systems plan, not just a strategy deck. And a leader who makes themselves unnecessary: the best fractional CMOs define the full-time role and help hire into it. Be suspicious of anyone whose plan has no end.
What about outside London?
Most fractional supply concentrates in London; most of the UK's B2B mid-market does not. Northern tech and manufacturing-adjacent B2B companies, the Leeds, Manchester, Sheffield corridor we know well, are underserved and often better businesses: real revenue, real customers, less noise. Remote-first fractional work has largely erased the geography premium, so do not pay one.
Frequently asked questions
How much does a fractional CMO cost in the UK?
Typically £3,000 to £12,000 a month depending on days and seniority, versus £150,000 to £250,000 plus equity and employer costs full-time.
Is a fractional CMO inside IR35?
Usually outside when properly structured: multiple clients, outcome-based scope, genuine autonomy. Get the contract reviewed; substance matters more than labels.
How many days a week does a fractional CMO work?
One to two days a week is standard, flexing up around launches, raises or hiring.
How do I vet a fractional CMO?
Ask what revenue number they owned, where, and what happened to it. Then ask for a plan with an exit: good fractional leaders plan their own replacement.