A fractional CMO in the UK usually costs £3,000 to £12,000 a month on retainer, or £500 to £2,500 a day, depending on how many days a week they work and how senior they are. We Scale Startups charges £5,000 to £8,000 a month for about one day a week, and £7,500 to £10,000 a month for about two days a week, with a three-month minimum.
Those market figures come from seven UK providers’ own published pricing pages, listed below. The WSS figures are our published prices.
Public WSS anchors (UK)
| Engagement | From | Typical shape |
|---|---|---|
| Growth Diagnosis | £2k | ~1 week. Bottleneck map and sequenced recommendation. |
| 90-Day Growth Sprint | £8k | 12 weeks. Audit → plan → ship tests → transfer. |
| Acquisition System Build | £15k | 8–12 weeks. Channels, pages, offers, reporting as one system. |
| Fractional CMO | £5k–£8k/mo | ~1 day/week, 3-month minimum. Senior ownership and weekly rhythm. |
| Fractional CMO Plus | £7.5k–£10k/mo | ~2 days/week. Deeper operating support and agency management. |
Those numbers are deliberately visible. They filter the wrong buying conversation early.
What the monthly fee buys
You are not buying a cheaper full-time CMO.
You are buying senior ownership for the stage where the company needs better growth decisions before it needs a permanent executive layer:
- diagnosis of the current growth bottleneck
- ICP, positioning, offer, and channel judgement
- reporting and a weekly scale / stop / fix rhythm
- agency or team direction
- cleaner hiring briefs
- handoff of the operating system when the company is ready to internalise it
That is why comparing a fractional CMO only to a channel agency can mislead. The agency may be valuable. The job is different. One executes a channel. The other decides what the system should do.
Seven UK providers publish £1,500 to £12,000 a month
These are the UK pages that ranked on Google for “how much does a fractional CMO cost in the UK” on 31 October 2026, with the figures each one publishes. Every one of them is a provider pricing its own kind of work, so read this as published asking prices from seven sellers, not as a market survey.
| Provider page | Monthly retainer | Day rate |
|---|---|---|
| VCMO | £3,000 to £12,000+ (£20,000+ for larger organisations) | £750 to £2,000 |
| McCracken Marketing | £1,500 to £6,000 | from £500 |
| Limivex | £3,000 to £12,000 | £700 to £1,500 |
| Fractionauts | £3,000 to £8,000 | £600 to £1,200 |
| Primewise | £4,000 to £12,000 | £800 to £1,800 |
| Jonny Ross | £3,000 to £10,000 + VAT | £800 to £1,500 |
| Leadership Services | £1,795 to £6,000 | £700 to £1,500 |
Two things explain most of the spread. The lower retainers buy one to four days a month of advisory time, while the upper end buys two or more days a week with someone directing agencies and the team. Sector and seniority add a premium on top.
On the same basis, WSS’s monthly prices work out at roughly £1,150 to £1,850 per day of senior time for Fractional CMO (about one day a week) and £860 to £1,150 for Fractional CMO Plus (about two days a week). We price by the month because what a founder is buying is the weekly operating rhythm.
Useful comparison bands
For post-PMF Seed–Series B teams, put the retainer next to:
- Specialist agency retainers: often roughly £6k–£20k/month for production-heavy scopes
- Full-time marketing leadership: often £120–180k base plus equity and on-costs, with a multi-month hire cycle and ramp
- Narrow consultants / freelancers: useful for one slice, not usually for whole-GTM ownership
Published fractional CMO retainers, from the seven pages above, mostly land between £3k and £12k a month. Days per week and operating depth drive the number.
What moves the price
- Days per week embedded
- Number of acquisition channels in scope
- Agency or contractor coordination load
- Reporting / CRM hygiene work
- International or multi-product complexity
- How much of the first 90 days is diagnosis versus execution
A short diagnosis or sprint is fixed-duration. Ongoing retainers scale with embedded time.
When the spend is justified
Easiest to justify when the founder is still the bottleneck on growth decisions, pipeline arrives in waves, channels run in isolation, and the company is not ready for a £150k full-time hire.
Harder to justify pre-PMF, pre-revenue, or when there is no internal owner who will run the weekly cadence after the engagement.
Decision rule
If you know exactly which channel to execute, hire production (agency or specialist).
If you do not know which channel matters, why the funnel is stuck, what the positioning should say, or what the team should stop doing, senior fractional leadership is usually the cleaner first step.