Fractional CMO: what, why and when
Eva GarrelUpdated
A fractional CMO is a senior marketing leader working with your company part-time: 1–3 days a week, across strategy and execution. Below, a practical guide: when the model fits, what to expect and how to measure ROI.
What is a fractional CMO
A seasoned C-level marketing executive leading strategy, brand and team part-time. Not a slide consultant and not an agency with tickets, a leader inside your business, accountable for outcomes.
When to hire one
When revenue is between $1–50M and you need strategy without a full-time CMO; before a funding round or exit; when launching a new market or product; when your in-house team exists but lacks senior leadership and systems.
How it differs from an agency
Agencies execute tactics. A fractional CMO sets strategy, selects agencies and channels, owns the marketing P&L and speaks the board's language. It's about decisions, not creative production.
How to measure results
30/60/90 days: audit and priorities → strategy and team → first systemic metrics: cost to acquire a customer, what that customer brings over the whole relationship, revenue share by channel and funnel velocity. 6–12 months, sustainable revenue growth and operational maturity.
How much it costs
Fractional CMO across Europe and worldwide, $4–20K per month depending on scope. That's 2–4× cheaper than a full-time CMO for a company at $20–100M revenue.
FAQ
How is a fractional CMO different from an advisor?
An advisor gives recommendations 2–4 hours a month. A fractional CMO embeds operationally, leads the team and owns metrics.
How many companies do you serve in parallel?
No more than 3–4 at a time: required for real depth and real decisions, not titles.
Which industries?
AI products, premium services, e-commerce, fintech, industrial B2B. The criterion is ambition and team quality, not vertical.
If what you need first is numbers rather than a director, there is a separate format for that. Marketing the board can read →