There's a stage most founder-led businesses hit somewhere between £500k and £3M in revenue. The founder is making every operational decision. Firefighting is a daily reality. Too much institutional knowledge lives in one person's head, and that person is exhausted.
The obvious answer: hire a COO.
The expensive mistake: doing it too early.
The Real Cost of a Full-Time COO
Glassdoor salary data for COO roles in the UK puts base salary at £90,000–£150,000 per year at the mid-market level. But base salary is the smallest part of the cost.
Add employer NI at 13.8%, pension contributions, recruiting fees (15–25% of first-year salary), a signing bonus, and the three to six month onboarding period where they're absorbing context rather than delivering output—and the true Year 1 cost of a full-time COO hire is £120,000–£200,000.
For a business generating £1M in revenue with 40% gross margins, that's 30–50% of gross profit committed to a single hire. One who may or may not have the right experience for your specific stage and sector. One who will spend their first quarter learning your business before they can meaningfully change it.
For many businesses at this stage, that's not a calculated risk. It's a bet you can't afford to lose.
What a Fractional COO Actually Delivers
A fractional COO engagement provides 8–16 hours per month of senior operational leadership—enough to own the strategic operations agenda, drive key initiatives, and make the decisions that require a senior operator's judgment. Without requiring full-time presence or full-time cost.
In practice, that typically covers:
Month 1 operations audit. People, processes, tools, and bottlenecks mapped across the whole business. Most founders are surprised by what this surfaces—not because the problems are hidden, but because no one has ever had the time to look at everything together.
OKR and KPI framework. The accountability infrastructure that lets the founder delegate without losing visibility. This is what makes it possible to stop being the operational bottleneck.
SOP development. Two to three documented standard operating procedures per month. Systematically making the business less dependent on individuals. This is how you build something that can scale without you in every decision.
Toolstack optimisation. Identifying where tools are duplicated, underused, or simply missing. Most businesses at this stage are either over-tooled (paying for software no one uses) or under-tooled (running critical processes on spreadsheets).
Hiring support. Role scoping, interview process design, and offer structuring for key hires. The fractional COO builds the infrastructure that makes full-time hires more successful.
When Fractional Is the Right Answer
Fractional ops leadership works best when the business has reached the complexity that requires a senior operator, but not the scale that justifies full-time presence. That window is typically £500k–£5M in revenue with 5–30 employees.
The specific triggers: the founder is making operational decisions that consume more than two hours per day, there's no existing person capable of owning cross-functional delivery, and the business is scaling into problems that will compound without senior attention.
If all three of those are true, the fractional model delivers exactly what you need—without the risk and cost of a full-time hire that the business isn't quite ready to absorb.
The Cost Comparison, Honestly
A Fractional COO engagement runs from £2,800/month at Ops Manager level to £4,500/month for COO-level strategic engagement. Against a full-time equivalent costing £10,000–£12,500/month fully loaded, the fractional model delivers 70–80% of the operational value at 30–40% of the cost.
More importantly, it gets you into a better position to make a successful full-time hire when the business is genuinely ready. The fractional engagement produces documented processes, team infrastructure, and operational clarity. A full-time COO hired into that environment has everything they need to move fast. A full-time COO hired into an undocumented, founder-dependent operation spends their first year building what the fractional already built—at five times the cost.
The fractional model isn't a compromise. At £500k–£3M revenue, it's often the smarter path to operational maturity.
If your founder is still the operational bottleneck and you're scaling into problems that are compounding, see how fractional operations leadership works in practice →