Fractional CMO for E-Commerce vs. Fractional Head of Growth
Compare two available RevenueTHESIS engagements: Fractional CMO for overall marketing direction, and Fractional Head of Growth for acquisition, conversion, retention and measurement. Choose responsibilities around your business need.
What Is a Fractional CMO?
A fractional CMO is a senior marketing executive who works part-time across brand strategy, positioning, content, demand generation, and marketing team leadership, essentially the full CMO role, scaled down to a few days a week instead of full-time. For e-commerce brands specifically, this typically means someone setting the overall marketing direction and managing the team or agencies executing it.
The Real Difference: CMO vs. Head of Growth
Both are senior, both are part-time, and there's real overlap. But they solve different problems.
- Pick a fractional CMO if: your positioning isn't clear, your brand presence is weak relative to your category, or your team needs marketing leadership and direction more than channel optimization.
- Pick a Fractional Head of Growth if: your positioning and brand are fine, but acquisition, conversion, or retention aren't performing, and you need someone accountable for the growth number itself, not just the marketing narrative.
RevenueTHESIS offers both Fractional CMO and Fractional Head of Growth. The CMO engagement leads marketing direction across positioning, brand, content and demand generation. Head of Growth focuses on acquisition, conversion, retention and measurement. Scope, decision authority and execution responsibilities are agreed before work begins.
What Does a Fractional CMO Cost?
Fractional CMO fees, cadence and execution responsibilities are scoped after discovery. Marketing leadership does not automatically include daily channel execution or a full delivery team.
The separate RevenueTHESIS Fractional Head of Growth engagement starts at $3,500/month. That starting rate does not apply automatically to Fractional CMO; compare the responsibilities needed before choosing.
Which One Do You Actually Need?
If you're not sure, that's a normal place to start. A SIGNAL Diagnostic answers the question directly: it identifies whether the real constraint is brand and positioning (a CMO problem) or acquisition, conversion, and retention execution (a Head of Growth problem), before you commit to either.
Fractional CMO FAQ
Is a fractional CMO worth it for a small e-commerce brand? +
It depends on the actual bottleneck. If the brand and positioning are already clear and the problem is acquisition, conversion, or retention performance, consider Fractional Head of Growth. If you need overall marketing direction, positioning and team coordination, consider Fractional CMO. Fit depends on agreed responsibilities and capacity.
What's the difference between a fractional CMO and a marketing consultant? +
A fractional CMO or Head of Growth is embedded and accountable for outcomes over an ongoing engagement. A consultant typically delivers a plan or recommendation and hands it off, without ongoing execution accountability.
How do I choose between a fractional CMO and a fractional Head of Growth? +
Start with what's actually broken. Unclear brand or marketing direction points to a CMO. Underperforming acquisition, conversion, or retention with a clear brand already in place points to a Head of Growth.
Is This the Right Fit?
- You have a marketing team that needs leadership across brand, content and demand.
- Positioning and message are as much the problem as the channel mix.
- You want an executive presence in the business without an executive hire.
- You need a full execution team included automatically; delivery capacity must be agreed separately.
- You need someone hands-on in the ad accounts daily. That is a specialist role.
- You want brand work with no accountability for revenue.
Not sure which one you need?
A free Growth Discovery Call answers it directly, no generic pitch.
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