What is CDD in simple terms?

Before buying or investing big, sponsors hire consultants to interview customers, size the market, and stress-test whether growth claims hold — separate from financial and legal diligence.

For founders selling a company, weak CDD findings reduce price or kill deals. For investors, CDD catches inflated TAM slides and customer concentration risks that spreadsheets miss.

What do CDD consultants actually ask customers?

Typical interviews cover renewal intent, NPS/satisfaction, switching costs, pricing power, and whether the buyer would repurchase. One unhappy flagship account can dominate the narrative.

How long does commercial due diligence take?

On mid-market PE deals, CDD often runs two to four weeks in parallel with QoE and legal. Early venture rounds usually skip full third-party CDD and do lighter internal commercial checks.

How should founders prepare for CDD?

Curate reference customers, document churn cohorts, and reconcile pipeline claims with CRM before calls start. Surprises in customer interviews move price and terms fast.

CDD vs FDD — what's the difference?

CDD answers whether customers will keep buying and the market supports growth. FDD (financial due diligence) validates that revenue and costs were booked correctly and earnings are sustainable — see /glossary/fdd-financial-due-diligence.

VC & PE Glossary

What Is CDD (Commercial Due Diligence)?

Updated Aug 1, 2026

Definition

Commercial due diligence (CDD) is third-party research on a target company's market, customers, and competitive position — validating revenue quality and growth assumptions before an investor or acquirer closes a deal.

Useful for: Founders, Investors

CDD (commercial due diligence) is independent analysis of a company’s market, customers, competition, and growth thesis — typically commissioned by buyers or investors before a major transaction.

How it works

Specialist firms (consultancies, sector experts) run CDD parallel to financial, legal, and technical diligence. Workstreams include:

Market sizing and growth drivers — independent TAM/SAM sanity checks
Customer interviews — satisfaction, renewal intent, pricing power
Competitive landscape — win/loss patterns, differentiation durability
Commercial model review — pipeline quality, churn, sales efficiency

Output is a report with risks, opportunities, and sometimes purchase-price implications. On buyout and large growth equity deals, CDD is standard; on early venture rounds, investors often perform lighter internal commercial diligence.

Founders in exit processes should curate reference customers and document churn cohorts before CDD calls begin — surprises in customer interviews move terms fast.

CDD timelines often run two to four weeks on mid-market deals, running parallel to QoE and legal diligence. Findings can reprice the LOI or kill the transaction if customer concentration or market shrinkage exceeds underwriting tolerance.

Why it matters

Founders: Treat CDD as a sales process to future owners. One unhappy flagship customer can dominate the narrative.
Investors: CDD validates whether EBITDA or ARR growth is structurally sound or a cyclical spike.

Common mistake

Confusing CDD with financial audit. CDD answers “will customers keep buying?” — not whether revenue was booked correctly (though related).

See also buyout, FDD (financial due diligence), quality of earnings, customer diligence, and carve-out.

By Venture Capital Tracker

Last updated: August 1, 2026

Editorial note: AI tools assisted with research, structure, or drafting. Venture Capital Tracker retains human editorial responsibility for factual accuracy, relevance, and source quality before publication.

Common questions

Short answers for founders, LPs, and operators

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