'Fractional Head of Growth' has become a real category in 2026, distinct from fractional CMO and fractional CRO, with its own engagement model and price point. Here's what it actually is, who it's for, and how to think about hiring one.
A fractional head of growth is a senior growth operator (typically 8-15 years of PLG, B2B SaaS, or DTC experience) embedded part-time with a company to architect and run their growth motion. Distinct from fractional CMO (which is broader, more strategic) and fractional CRO (which is more sales-focused). Typical engagements: $8K-$20K/month, 12-month commitments, 1-2 days/week. Best fit: $1M-$20M ARR companies with product-market fit who need to scale acquisition without hiring a $300K full-timer.
The fractional head of growth role focuses specifically on the growth function: acquisition, activation, retention, and expansion. It sits between marketing and product, and increasingly between marketing and sales.
Typical scope of a 12-month engagement:
• Growth strategy and prioritization (which channels, which experiments, which segments)
• Acquisition channel architecture (paid, organic, partnerships, content, community)
• Activation and onboarding optimization (especially PLG)
• Retention and expansion programs
• Growth team hiring and structure
• Reporting and dashboards that connect growth work to revenue
What it's NOT: brand work, broad marketing leadership across all functions, sales team management. Those are CMO or CRO scope.
Same level (senior), different scope.
Fractional CMO is broader: positioning, brand, demand gen, content, PR, team leadership, board credibility. Owns all marketing.
Fractional head of growth is narrower and deeper: acquisition and activation mechanics, growth experiments, channel optimization, retention. Often more quantitative.
When to pick which: if your bottleneck is 'we don't have a marketing strategy,' you need a CMO. If your bottleneck is 'we have a strategy but our growth channels aren't working,' you need a head of growth. Many companies eventually need both. Full comparison →
Different functions entirely.
Fractional CRO owns revenue: sales, sales ops, customer success, sometimes marketing. Heavy on sales motion design, comp structure, deal review, pipeline forecasting.
Fractional head of growth owns growth: acquisition and activation. Heavy on channel mechanics, experimentation velocity, conversion optimization.
They overlap in middle-funnel work (pipeline efficiency, lead quality, sales/marketing alignment) but are different jobs. Don't ask a fractional CRO to fix your paid acquisition; don't ask a fractional head of growth to redesign your sales motion.
Three conditions should all be true:
1. You have product-market fit. Pre-PMF, you need product iteration, not growth optimization. A fractional head of growth at the wrong stage will optimize a leaky bucket.
2. You have $1M-$20M ARR. Below that, you don't have the budget or volume for meaningful experimentation. Above that, you usually need a full-time head of growth.
3. Your growth has plateaued or your CAC has crept up. Something stopped working and you can't figure out what. This is where senior growth experience pays for itself.
Fractional head of growth typically runs $8K-$20K/month for 1-2 days/week. Variance drivers:
• Stage: $1M-$5M ARR engagements lean toward $8K-$12K. $10M-$20M ARR engagements lean toward $14K-$20K.
• Scope: Strategy + light execution at the lower end. Strategy + heavy execution + team management at the higher end.
• Industry expertise: Operators with specific PLG, marketplace, or DTC experience charge premium for fit.
Compare to: full-time VP Growth at $250K-$350K base + equity ($350K-$500K all-in). Fractional is 30-50% of full-time cost for senior-level work.
Typical engagement structure for a high-quality fractional head of growth:
• Weeks 1-4: Diagnostic. Audit current growth motion, identify the 2-3 highest-leverage opportunities, write up a 90-day plan.
• Weeks 5-8: Quick wins. Ship 2-3 things that move metrics in 30 days, usually channel optimization, conversion tweaks, or experiment infrastructure.
• Weeks 9-12: Architecture. Set up the systems (experimentation framework, reporting, channel infrastructure) that will keep producing wins after the diagnostic is forgotten.
• Quarter 2+: Compounding work. Channel scaling, team hiring, larger experiments. This is where 12-18 month engagements pay off.
Choose fractional when:
• Pre-$10M ARR (can't justify $400K+ all-in for full-time)
• You need senior judgment for a defined period (6-18 months) and don't want a long-term commitment
• You want a senior operator who's seen multiple growth motions, not just one company's
• Your full-time head of growth left and you need to fill the gap while hiring
Choose full-time when:
• $20M+ ARR and growing
• You need deep institutional knowledge that compounds over years
• Your growth motion is unique enough that contextual knowledge is the limiting factor
• You can afford $350K-$500K all-in
Founders often wait too long or move too early. Here's a fast read on fit.
If most of the left column applies, the ROI on a fractional engagement is strong. If you're checking boxes on the right, invest in product and sales definition first. A fractional head of growth will tell you the same thing in the discovery call if they're worth hiring.
What is a fractional head of growth?
A fractional head of growth is a senior growth operator embedded part-time with a company to architect and run their growth motion. They work 1 to 2 days per week on retainer, typically at $8,000 to $20,000 per month, focusing on acquisition, activation, retention, and the experimentation systems that compound growth over time.
How much does a fractional head of growth cost?
$8,000 to $20,000 per month for 1 to 2 days per week. Companies at $1M to $5M ARR typically pay $8,000 to $12,000 monthly. Companies at $10M to $20M ARR typically pay $14,000 to $20,000. That is 30 to 50 percent of the cost of a full-time VP of Growth ($350,000 to $500,000 annually all-in).
What is the difference between a fractional head of growth and a fractional CMO?
A fractional CMO owns all of marketing: brand, positioning, demand gen, content, PR, and team leadership. A fractional head of growth owns growth specifically: acquisition channels, activation flows, retention programs, and experimentation velocity. If your bottleneck is not having a marketing strategy, hire a CMO. If your growth channels are not converting, hire a head of growth.
When should I hire a fractional head of growth?
Three conditions should all be true: you have product-market fit, you are at $1M to $20M ARR, and growth has plateaued or customer acquisition cost has increased. Below PMF, growth optimization is premature. Below $1M ARR, there is not enough volume for meaningful experimentation. Above $20M ARR, you typically need a full-time hire.
How long is a typical engagement?
Most engagements run 12 to 18 months. The first 90 days are diagnostic and quick wins. Months 4 to 12 are where compounding work happens: channel scaling, team hiring, and larger experiments. Shorter 6-month engagements exist but rarely produce the architectural work that creates lasting lift.
What does a fractional head of growth do in the first 90 days?
Weeks 1 to 4 are diagnostic: audit the current growth motion and identify the 2 to 3 highest-leverage opportunities. Weeks 5 to 8 focus on quick wins, usually channel optimization or conversion tweaks. Weeks 9 to 12 focus on architecture: the experimentation framework, reporting systems, and channel infrastructure that will keep producing results long-term.
Can a fractional head of growth work for a B2B SaaS company?
Yes. B2B SaaS is one of the strongest fits. Fractional heads of growth with PLG or B2B SaaS backgrounds can accelerate trial-to-paid conversion, reduce CAC on paid channels, build content-led acquisition programs, and set up the experimentation infrastructure a growing SaaS team needs. The key qualifier is product-market fit: the role works best when the product is proven and the question is how to scale acquisition.
Is a fractional head of growth the same as a growth consultant?
No. A growth consultant delivers recommendations and a roadmap, then leaves. A fractional head of growth is embedded: they own the growth function, run the experiments, manage the channels, and are accountable to revenue metrics over a 12 to 18 month engagement. The distinction is accountability and execution, not just advice.