Once you pass $2M in revenue, your marketing suddenly gets too big for a freelancer and too small for a $250k VP. That's the gray zone where the Fractional CMO vs Agency question matters - and where the wrong answer gets expensive.
What a Fractional CMO actually does
A Fractional CMO is a senior marketing leader who owns your marketing P&L 1 to 3 days per week. They drive strategy, hire and challenge your operators - internal or external - and report to the CEO. Not a consultant who hands over a deck, not a freelancer who executes.
Cost is typically $6,000 to $12,000 per month depending on seniority and engagement. Pricey for a few days a week, but 4 to 6× cheaper than a comparable full-time CMO.
“Fractional CMO = senior strategic ownership, part-time, accountable to the P&L.”
What a good agency brings
A growth agency delivers specialized execution - paid media, creative, CRO, data. You get a multidisciplinary team for the cost of one senior hire, plus the compounded learnings from other brands they work with.
Classic trap: delegating strategy to the agency. Agencies are excellent operators, but their economics reward volume, not your net margin. Someone on the brand side has to keep the steering wheel.
How to choose
If your problem is strategic - you don't know where to put the next marketing dollar, your positioning is fuzzy, your stack is misaligned - get a Fractional CMO first. The agency comes next, picked by them.
If your problem is purely execution - strategy is clear, you just lack hands - a good agency is enough. Keep an internal owner, even junior, as the counterweight.