ICAEW Registered Auditors  ·  90+ UK-Based Experts

Commercial Due Diligence

Before you commit to a deal, know whether the growth story is real. Our commercial due diligence stress-tests a target's market, customers and competitive position — so you buy on evidence, not on the seller's optimism.

Financial due diligence tells you whether the historical numbers are true. Commercial due diligence tells you whether the future numbers are achievable — and that is usually where deals succeed or fail. A target can have immaculate accounts and still be a poor acquisition if its market is shrinking, its revenue depends on two customers, or a well-funded competitor is about to undercut it.

Acumon's commercial due diligence examines the business from the outside in: its market, its competitive position, the durability of its customer relationships and the credibility of its forecasts. We translate that into clear, decision-ready conclusions on value, risk and the questions you should be pressing in negotiation.

What Commercial Due Diligence Covers

Our reviews test the four things that determine whether a business will deliver the returns your price assumes. Market: how big it is, whether it is growing or contracting, and what structural forces — regulation, technology, changing customer behaviour — are reshaping it. Competitive position: the target's real, defensible advantage — brand, cost, switching costs, intellectual property — against the threats ranged around it. Customers: the depth and stickiness of relationships, revenue concentration, contract terms, churn and pipeline. Business model: how the company actually makes money, whether that is sustainable, and where its pricing power sits.

We read this evidence against the seller's forecast rather than in the abstract, so you learn not just what the market looks like but whether the projections you are being asked to pay for are believable.

Commercial Risk Assessment

We surface the commercial risks that most often erode value after completion: customer concentration and the loss of a key account; churn running faster than new business; a competitor or disruptive entrant threatening market share; over-reliance on a single supplier, channel or individual; and revenue that looks recurring but is not contractually secure. Each risk is assessed for likelihood and impact, and — crucially — for what it means for price, deal structure and the warranties and conditions you should insist on. A risk you can price or protect against is very different from one that should stop the deal.

Buy-Side and Sell-Side

For acquirers, commercial due diligence is an independent check on the investment thesis and a source of leverage in negotiation. For vendors, commissioning your own commercial due diligence before going to market lets you address weaknesses early, evidence the growth story and give buyers confidence — which tends to support both price and deal certainty. We provide both, and we tailor the depth of the work to the size and risk of the transaction so the cost stays proportionate.

Clear, Actionable Reporting

You get a report written for decision-makers, not a data dump: a concise view on the market and competitive position, an honest assessment of the key commercial risks, and specific implications for valuation and negotiation. Because our commercial due diligence sits alongside our financial and tax due diligence and valuation services, the commercial findings feed directly into pricing and structure rather than living in a silo.

What You Get With Acumon

  • Market size, growth and structural-trend analysis
  • Competitive positioning and threat assessment
  • Customer base, concentration, churn and contract review
  • Business model and revenue-quality evaluation
  • Commercial risk assessment linked to price and deal structure
  • Decision-ready reporting integrated with financial and tax due diligence

Get a Fixed-Fee Quote

Tell us what you need and we'll come back within one business day with a clear scope and a fixed price — no hourly-rate surprises. Call 020 8567 3451 or use the form and we'll be in touch.

Common Questions

Frequently Asked Questions

What is commercial due diligence?
Commercial due diligence is an independent assessment of a target company's market, competitive position, customers and business model, used to test whether its forecasts and strategy are credible before an acquisition. Where financial due diligence validates the historical numbers, commercial due diligence assesses whether the future performance you are paying for is achievable.
How does commercial due diligence differ from financial due diligence?
Financial due diligence examines the accuracy and quality of historical financial information — earnings, working capital, debt. Commercial due diligence looks outward at the market, competitors and customers to judge the sustainability of future performance. The two are complementary, and the strongest deal decisions draw on both; we provide them together so the findings reinforce each other.
Do I need commercial due diligence for a smaller acquisition?
Often a focused version is worthwhile even on smaller deals, particularly where revenue is concentrated in a few customers or the market is changing quickly. We scale the scope to the transaction so you get the insight that matters without paying for analysis you don't need.
Can commercial due diligence be done for a seller?
Yes. Vendor-side commercial due diligence, prepared before going to market, helps you evidence the growth story, fix commercial weaknesses early and give buyers confidence — which supports both price and deal certainty. It also reduces the risk of surprises emerging during the buyer's own diligence.
How long does commercial due diligence take?
Timelines depend on the size and complexity of the target and the depth of review required, and are usually aligned with the wider due diligence and transaction timetable. We agree the scope and deadline up front and work to the deal's pace, including accelerated timetables where needed.
Get in Touch

Ready to Sort Your Commercial Due Diligence?

Tell us what you need. Within one business day, a qualified accountant will be in touch to talk it through and give you a clear, fixed-fee quote — no obligation.

Visit us1-2 Craven Road, Ealing, London, W5 2UA

Speak to a Specialist

Fill this in and we'll come back to you within one business day.

No obligation. Your details stay private.
Call Now Get in Touch