Fractional Head of Growth Responsibilities
A fractional head of growth drives revenue expansion through data-driven experimentation and cross-functional leadership. Here are the 10 key responsibilities:
Full-funnel pipeline ownership (awareness through to revenue)
GTM strategy design and execution
Demand generation and paid acquisition
Growth experiment design and analysis
Channel optimisation (SEO, paid, partnerships, product-led)
Revenue forecasting and reporting to board level
Growth team hiring and mentoring
CRM and marketing technology stack ownership
Customer acquisition cost and LTV modelling
Investor-facing growth metrics and narrative
Fractional Head of Growth [Day Rate](/fractional-executive-day-rates "Fractional Executive Day Rates") UK
Fractional heads of growth in the UK typically charge £600–£1,100 per day, depending on:
Sector: B2B SaaS and marketplaces command higher rates
Scope: Full-stack growth vs specific channel expertise
Stage: Scale-ups pay more than early-stage startups
Location: London rates 15-20% higher than regional
Typical engagement models:
Advisory (1-2 days/month): £2,000-£3,500/month
Part-time (2-3 days/week): £5,000-£9,000/month
Intensive (4 days/week): £10,000-£15,000/month
When to Hire a Fractional Head of Growth
Companies typically need a fractional head of growth when:
Product-market fit achieved but struggling to scale
Marketing and sales silos preventing unified growth
Data exists but no one turning insights into experiments
CAC payback period extending beyond comfort
Founder-led sales hitting natural ceiling
Series A fundraising requires growth narrative
Fractional vs Full-Time Head of Growth
| Aspect | Fractional Head of Growth | Full-Time Head of Growth |
|---|---|---|
| Cost | £60k-£120k/year | £120k-£180k + equity |
| Commitment | 1-3 days/week | 5 days/week |
| Experience | 10+ years, multiple scale-ups | Often first growth role |
| Speed | Immediate impact | 3-6 month ramp |
| Best for | Series A/B, 10-50 employees | Series B+, 50+ employees |
