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M&A commercial due diligence, framed around the specific thesis on the IC paper, not a generic checklist.

The thesis is the brief

Most commercial due diligence engagements get briefed against a template. Market sizing. Customer mix. Competitive read. Growth drivers. Risks. The template is fine, but it isn't the brief, the brief is the specific thesis the acquirer is buying into and the specific assumptions on which the price is based.

Critical Deal starts there. The first deliverable is a thesis map: the IC's argument, broken down into the claims that need to hold. Every interview, every dataset, every triangulation point in the rest of the engagement is run against that map.

What we test

  • The market thesis. Is the category growing the way the IC paper says? Sized bottom-up.
  • The customer thesis. Are the target's customers the right ones, are they retained, are they likely to expand?
  • The differentiation thesis. Is the target's edge real and durable in the eyes of the buyers, or is it a price story dressed up as a product one?
  • The competitive thesis. Who's catching up, who's leapfrogging, who's about to enter, from the buyers and the operators.
  • The execution thesis. Can the management team execute the plan after the deal closes?

What we deliver

  • The thesis verdict: holds, partly holds, does not hold, with the assumptions ranked by exposure.
  • The customer voice: anonymised primary interviews with the target's actual customers.
  • The competitive read: what's actually happening in the comp set the IC is worried about.
  • The market model: bottom-up TAM/SAM/SOM with sensitivity ranges.
  • A red-flag log: anything we found that the IC should know before signing.
How we run it

Five steps inside a deal window.

  1. Thesis map.

    We translate the IC paper into testable claims. This becomes the brief.

  2. Customer interviews.

    Senior-led conversations with the target's actual customers. Anonymised, screened, recorded.

  3. Competitive read.

    Buyers and operators inside the comp set. Where is the target really vulnerable?

  4. Market sizing.

    Bottom-up TAM/SAM/SOM. The IC paper's number, tested with our model.

  5. Verdict + red-flag log.

    Thesis holds, partly holds, or does not hold. Plus the things the IC needs to know before signing.

The diligence isn't the checklist. The diligence is the thesis.
The lens we bring to every CDD engagement.
Frequently asked

M&A due diligence, questions.

What's commercial due diligence?

Commercial due diligence (CDD) is research undertaken on behalf of an acquirer or PE buyer to test the target's market position, customer base, growth thesis and competitive vulnerability. The output sits alongside financial, legal and tax diligence and informs the IC decision.

How is Critical Deal CDD different?

We frame every engagement around the specific thesis being tested, not a generic CDD checklist. Every interview ladders to the assumptions underpinning the IC paper. The output is a verdict on the thesis with the evidence behind it.

How fast can you turn diligence?

Tight diligence windows: 2–4 weeks for focused theses. Standard CDD: 4–8 weeks. We scope to the deal window, not the other way round.

Do you compete with the strategy houses on CDD?

We're typically a sharper, faster alternative for deals where the bar is decision-grade evidence rather than 200-page reports. The big strategy houses are well-suited to large, branded-cover deals. We're well-suited to deals where the IC wants the answer to one question.

Who commissions you?

PE growth and buyout teams; corporate development at strategics; debt providers; family offices; and occasionally vendors running sell-side commercial diligence.

What sectors?

B2B SaaS, financial services, professional services, industrial and manufacturing, healthcare and life sciences. We pass on deals where we can't reach the right buyers credibly.

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