GTM due diligence (GTM DD) is a pre-deal assessment of whether a target company's commercial engine — its go-to-market strategy, pricing, sales execution and revenue operations — can actually deliver the growth the investment case depends on. Where commercial due diligence looks at the market from the outside in, GTM DD looks at the company from the inside out.
For private equity investors, the market opportunity is rarely the thing that goes wrong. The thesis is usually right about where demand is heading. What determines whether the returns materialise is far more often execution — whether the business can price well, build pipeline, convert it, retain customers, and scale the commercial function without the wheels coming off. That is precisely the ground a GTM due diligence is built to cover.
Commercial DD tells you whether the market is attractive. GTM DD tells you whether this company can win in it — and hands you a plan to make sure it does.
Commercial due diligence is a mature, essential part of the deal toolkit. It is very good at what it is designed to do: size the market, map the competitive landscape, test customer demand and validate the top line of the model. But it is fundamentally an outside-in exercise, and there are questions it was never built to answer:
Whether the addressable market is £15bn or £16bn rarely changes a decision. Whether the company can convert its pipeline, hold price and scale its team almost always does. GTM DD exists to close that gap.
| Commercial due diligence | GTM due diligence | |
|---|---|---|
| Core question | Is the market attractive and the thesis credible? | Can this company capture the opportunity? |
| Vantage point | Outside-in — market, competitors, demand | Inside-out — the company's own revenue engine |
| Typical evidence | Market data, expert calls, customer surveys | CRM & pipeline data, commercial KPIs, team review |
| Core output | Validated market view and growth model | Capability assessment + value creation plan |
| Best used | To confirm the opportunity exists | To confirm — and plan — how it gets captured |
The two are complementary, not competing. A CDD and a GTM DD together give an investment committee both halves of the picture: the size of the prize, and a grounded, operator-tested view of how to claim it.
A thorough GTM DD works across the entire commercial function rather than a single symptom. Broadly, it assesses four connected areas:
The point is not to grade each area in isolation, but to understand how they interact — where the constraints on growth actually sit, and which levers will move the number fastest.
At Altius, that structure is formalised as a proprietary 23-topic commercial assessment framework. It combines the rigour of a strategy consultant with the depth of a commercial-excellence specialist, so nothing important is left to instinct or missed under deal pressure. Each topic is scored against benchmarks and evidence, then rolled up into a clear view of capability and opportunity.
We walk through all 23 topics — and how each is assessed — in a dedicated guide: The Altius 23-topic commercial assessment framework.
A GTM DD is only as valuable as what you can do with it. The deliverable is not a description of the problem — it is a plan. Specifically, a commercial value creation plan (VCP) that translates the assessment into action:
Because the plan is built with management rather than handed to them, it survives the transaction. It becomes the commercial backbone of the first 100 days and the holding period, rather than a report that is filed and forgotten.
A focused GTM DD is designed to fit the deal timetable — typically two to four weeks from kick-off to a management-ready plan, without placing heavy demands on the target's team.
Align on the value thesis and the questions that matter most, then pull CRM, pipeline and commercial KPI data.
Work through the 23 topics — data analysis, management and customer conversations, benchmarking — to locate the real constraints on growth.
Size the opportunity behind each lever, then sequence the workstreams by impact, effort and dependency.
Pressure-test the plan with management so they own it, and deliver the assessment and value creation plan.
The most common trigger is pre-deal — to pressure-test the growth thesis and de-risk the value creation plan before capital is committed. But it earns its place at other moments too:
Two things define how we run a GTM due diligence. First, seniority: every mandate is led and executed by two senior experts — ex-strategy consultants, PE operating partners and industry specialists, with a minimum of fifteen years' experience each. No juniors, ever. Second, an inside-out, operator's lens: we assess the revenue engine the way someone who has run one would, and we build the plan with management so it sticks.
The result is a view an investment committee can act on with conviction, and a plan a management team will actually deliver.
Commercial DD assesses the market from the outside in — size, growth, competition and demand. GTM DD assesses the company from the inside out — whether its go-to-market, pricing, sales and RevOps can capture that opportunity. CDD tells you whether the market is attractive; GTM DD tells you whether this business can win in it.
Typically two to four weeks, aligned to the deal timetable, ending in a management-endorsed assessment and value creation plan rather than a report that lands after the decision.
A structured assessment of commercial capability across the full revenue engine, plus a prioritised value creation plan — the workstreams, expected impact and sequencing needed to accelerate revenue after the deal.
Most often pre-deal, to test the thesis and de-risk the plan. It is also valuable in the first 100 days, at a mid-hold reset, and ahead of exit.
Senior operators and strategists who have built and scaled commercial functions themselves. At Altius, every mandate is run by two senior experts with at least fifteen years' experience each.
Let's discuss the deal and the value thesis. We'll tell you honestly whether a GTM DD will change your conviction — and how we'd run it.
