Leadership insight

Big-Firm Consultancy Fees vs a Fractional Executive: Same Problem, 10x Price Gap

Hayat Amin · Updated 2026-09-20

Big-firm consultancies charge £500,000 to £2 million for engagements a fractional executive delivers for a tenth of the price. Here is the real breakdown of the fractional executive vs consultancy cost decision.

A Big Four consultancy and a fractional executive can solve the same strategic problem — finance function design, AI readiness, IP monetisation, or exit preparation. One costs ten times more than the other. According to Source Global Research, the UK consulting market exceeded £16 billion in 2024, built on corporate willingness to pay £3,500 to £5,000 per day for brand-name reassurance. Hayat Amin, who has operated on both sides of the fractional executive vs consultancy decision as a C-suite operator and adviser to companies that hired Big Four teams, argues the gap is not a market inefficiency. It is a business-model tax that most SMEs and growth-stage companies should stop paying.

What Does a Big Four Consultancy Actually Charge?

Big Four consulting firms — Deloitte, PwC, EY, and KPMG — charge between £2,000 and £5,000 per consultant per day, with seniority and geography driving the range. A typical strategy or transformation engagement staffs three to five consultants for 12 to 20 weeks, landing total project fees between £500,000 and £2 million. Strategy firms run higher: McKinsey, BCG, and Bain bill £7,000 to £12,000 per partner day, with projects routinely exceeding £3 million.

The billing model drives the cost. Consultancies sell teams, not outcomes. A £1.5 million engagement might staff two partners, a senior manager, three associates, and a junior analyst. The partners attend the steering committee. The associates build the slide deck. The analyst runs the spreadsheet. You are paying partner rates for associate-grade work on most days of the project.

When the project ends, the team leaves. Implementation is scoped as a separate workstream with a separate fee — or it falls to your own team, who were not in the room when the recommendations were made.

What Does a Fractional Executive Cost for the Same Scope?

A fractional executive — a CFO, COO, Managing Director, or Chief IP Officer working two to four days per month on retainer — costs between £3,000 and £12,000 per month in the UK and $5,000 to $15,000 in the US. That is £36,000 to £144,000 per year, roughly what a Big Four engagement costs for eight weeks of associate-built PowerPoints.

The fractional executive does not hand over a recommendation deck and leave. They build the function, run the process, and own the outcome. A fractional CFO closes the month-end in two days. A fractional Chief IP Officer restructures the patent portfolio and negotiates the licence. An AI Operations operator ships the agents and measures the return.

Beyond Elevation places fractional CFOs, Chief IP Officers, and AI Operations operators into growth-stage and mid-market companies. Retainers start at £4,000 per month — less than two days of a Big Four partner's time.

Why Is the Fractional Executive vs Consultancy Price Gap So Wide?

The 10x price gap between a fractional executive and a consultancy engagement is structural, not accidental. It is driven by three forces baked into the consultancy business model: pyramid billing, brand tax, and the implementation gap.

Pyramid billing. Consultancies leverage senior partners across dozens of simultaneous engagements. The partner sells the project, appears at the kick-off and the steering committee, then staffs the work with associates and analysts billed at senior rates. A 2024 Financial Times analysis found that Big Four partners oversee 12 to 15 engagements at once. A fractional executive works on three to five clients. You get the senior operator doing the work, not managing a team doing the work.

Brand tax. Companies pay 30 to 40 per cent above market for the consultancy's brand on the final slide deck. Boards feel safer approving a Deloitte engagement than an individual operator's retainer. Hayat Amin reminds founders that boards approve consultancies because the risk feels shared — but the price of shared risk is a shared result. Nobody at the consultancy is personally accountable for whether the recommendation moves a single number.

Implementation gap. Consultancies diagnose and recommend. Fractional executives diagnose, build, and run. The consultancy leaves after the final presentation. The fractional executive stays until the numbers change. That implementation gap is where most of the value is created — and where most consultancy engagements end.

Head-to-Head: Fractional Executive vs Consultancy for a 12-Month Engagement

The comparison table below puts a Big Four consultancy engagement against a fractional executive retainer for the same 12-month scope — a finance function redesign combined with an AI operations rollout.

When Does a Consultancy Still Make Sense?

Consultancies earn their fee in three specific scenarios: large-scale enterprise transformation across multiple geographies and business units, regulatory compliance programmes that require Big Four audit-trail credentials, and situations where the board or investors explicitly require a brand-name firm for governance or fiduciary optics.

If your company has fewer than 500 employees, your revenue is under £100 million, and the problem is a function that needs building or fixing — finance, IP, AI, operations — a fractional executive will deliver more, faster, for less. The consultancy model was designed for FTSE 100 problems. Most companies buying consultancy engagements do not have FTSE 100 problems. They have execution problems dressed up in strategy language.

The Hayat Amin Cost-Per-Decision Framework

Hayat Amin's Cost-Per-Decision Framework reduces the fractional executive vs consultancy comparison to one number: divide total engagement cost by the number of consequential decisions the engagement produces. A £1.2 million consultancy engagement that delivers 40 recommendations runs at £30,000 per decision. A fractional executive on a £6,000 monthly retainer who makes 8 to 10 consequential decisions per month runs at £600 to £750 per decision — a 40x difference.

The framework exposes a second problem. Consultancy recommendations are not decisions. They are suggestions the client must still decide whether to act on, then find someone to implement. The fractional executive decides and implements in the same motion. The cost-per-decision comparison is generous to consultancies because it counts their recommendations as decisions. In practice, the real gap is wider.

Hayat Amin argues that the cost-per-decision number is the single metric boards should demand before approving any consultancy engagement over £250,000. If the number exceeds £5,000 per decision for work a specialist operator could deliver, the company is paying for reassurance rather than results.

How to Move From Consultancy-Dependent to Operator-Led

Shifting from a consultancy model to a fractional executive model takes three changes in how leadership teams buy expertise.

First, define the outcome, not the project. Consultancies thrive on scoping projects with milestones and deliverables. Fractional executives thrive on owning outcomes. Instead of commissioning a "finance transformation project," hire a fractional CFO to close the month in two days, build the board pack, and get the numbers investor-ready. The outcome is the brief.

Second, hire the operator, not the brand. A fractional executive's track record is visible and verifiable — previous companies, functions built, outcomes delivered. Ask for the three most recent engagements and the measurable result from each. Beyond Elevation operators come with exit experience, listed-company finance backgrounds, and IP deal track records that stand on their own.

Third, measure monthly, not quarterly. Consultancy engagements report at milestone reviews, often 8 to 12 weeks apart. Fractional executives report monthly because they are embedded in the operation. If nothing has improved after 60 days, you know it before £500,000 has been spent — and you can change course while there is still budget to spend.

FAQ

Is a fractional executive genuinely cheaper than a consultancy for the same work?

Yes. A fractional executive costs £36,000 to £144,000 per year on a monthly retainer. A Big Four consultancy engagement for comparable scope runs £500,000 to £2 million. The fractional executive also implements the work, which the consultancy typically scopes and bills as a separate engagement.

Can a fractional executive handle the same complexity as a Big Four team?

For companies under £100 million in revenue, yes. Fractional executives are former C-suite operators with deep domain expertise. They do not have a consultancy's 50-person bench — but most companies do not need a 50-person bench. They need one senior operator who builds the function and owns the result.

When should I still hire a consultancy instead of a fractional executive?

Hire a consultancy for enterprise-scale transformation across multiple geographies, regulatory compliance programmes requiring Big Four audit credentials, or when your board requires a named brand firm for governance reasons. For single-function problems — finance, IP, AI, or operations — a fractional executive is faster, cheaper, and accountable.

How do I compare a consultancy quote against a fractional executive retainer?

Use the cost-per-decision method. Divide total engagement cost by the number of consequential decisions the engagement will produce. If the consultancy quote exceeds £5,000 per decision, you are likely paying for brand reassurance rather than outcomes. A fractional executive typically runs between £600 and £750 per decision.