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Sales Due Diligence

What is sales due diligence? A guide for private equity

Sales due diligence (sales DD) is a pre-deal assessment of a company's ability to sell — its pipeline, sales methodology, conversion, retention, team and revenue operations. It tells an investor whether the sales plan behind the model is real.

In one line

Sales DD answers one question with evidence: can this company actually sell its way to the plan?

What sales due diligence is

Where commercial due diligence validates the market, sales due diligence validates the selling motion. It is an inside-out look at how revenue is actually generated — and whether that engine can carry the growth the investment case assumes.

What it covers

We set out the full working structure in our sales due diligence checklist.

How it relates to GTM and commercial DD

How it fits

Sales DD is the deep-dive on selling. GTM DD is the wider inside-out assessment that adds pricing, go-to-market strategy and demand generation. Commercial DD assesses the external market. See the full comparison.

What it delivers

A sales DD delivers an evidenced view of commercial capability and, crucially, a prioritised set of actions to strengthen it — the foundation of a post-deal value creation plan.

When to run one

A note on scope. This guide reflects how Altius Partners approaches sales due diligence for private equity as of 2026. Every engagement is tailored to the specific value thesis, sector and timetable, and this is not a substitute for transaction-specific advice.

Frequently asked questions

What is sales due diligence?

A pre-deal assessment of the ability of a company to sell — pipeline, methodology, conversion, retention, team and RevOps — to test whether the sales plan behind the model is credible.

What does sales DD deliver?

An evidenced view of commercial capability plus a prioritised set of actions to strengthen the sales engine post-deal.

How is it different from GTM DD?

Sales DD focuses on the selling motion; GTM DD widens the lens to pricing, go-to-market strategy and demand generation across the full revenue engine.

When should you run one?

Most often pre-deal, and also in the first 100 days or at a mid-hold reset.

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