A brilliant product with no distribution plan is just an expensive hobby. As an early-stage investor, the go-to-market strategy is one of the most revealing parts of any startup pitch - not because it needs to be perfect, but because it tells you how the founders think about the hardest problem in business: getting people to pay for something.

Here is a practical framework for evaluating GTM strategy during due diligence.

Start with the customer, not the channel

The first question is not "how will you acquire customers?" It is "who exactly is your customer?"

A strong GTM strategy starts with a painfully specific customer definition. Not "SMBs" or "enterprise companies" - but something like "Series A fintech startups with 20-50 employees who currently manage compliance manually using spreadsheets."

When a founder can describe their ideal customer in this level of detail, it means they have done the work. When the answer is vague, the rest of the GTM strategy is probably vague too.

What to ask: "Describe your last 5 customer conversations. Who were they, what was their title, and what specific problem were they trying to solve?"

Evaluate the first 50 customers, not the first 50,000

Early-stage GTM strategy should be scrappy and specific. You are not looking for a scalable acquisition machine at the pre-seed or seed stage. You are looking for evidence that the founders know how to get their first paying customers.

Red flags:

The GTM plan jumps straight to "we will run Facebook ads" without explaining who clicks on them
The entire strategy depends on content marketing with no timeline or topic plan
Partnership deals are "in discussion" but nothing is signed
The founder talks about "viral growth" but cannot explain the specific mechanism

Green flags:

Named companies on the target list with specific contacts identified
A sales process they have already tested, even if it is manual
Clear understanding of the sales cycle length (and it is realistic for their price point)
Evidence of customer conversations that shaped the product

Check the math on customer acquisition cost

Even at the earliest stages, a founder should have a rough sense of what it costs to acquire a customer. If they are doing outbound sales, you can estimate based on time spent per deal. If they are running paid ads, they should know their cost per click and conversion rates.

Here is a quick sanity check: if the startup's average contract value is $500/year and they are claiming a CAC of $50, ask them to show you the funnel. That implies a 10x return on acquisition spend, which is exceptional. Most early-stage B2B startups see CAC between 30-50% of their first-year contract value.

For consumer products, the math is different but the principle is the same. If a founder tells you they will acquire users "organically" but has no existing audience, no community, and no distribution advantage, that is not a plan. That is hope.

Look for channel-market fit

Not every channel works for every market. Enterprise software is rarely sold through Instagram ads. Consumer apps are rarely sold through cold email.

The best founders have tested at least two or three channels and can tell you what worked and what did not. They might say: "We tried LinkedIn outbound and got a 3% reply rate, which led to 2 demos out of 100 messages. Cold email performed better at 5% reply rate. We are doubling down on cold email and building an SDR playbook."

That level of specificity tells you the founder understands distribution. Compare that with "we will do a mix of content, SEO, and social media" - which tells you almost nothing.

What to ask: "Which acquisition channels have you tested, and what were the results?"

Assess the sales motion against the price point

There is a common mismatch in early-stage startups: a product priced at $29/month with a sales process that involves three demo calls and a custom onboarding. The unit economics do not work.

As a rough guide:

Under $100/month: self-serve, product-led growth, minimal human touch
$100-$1,000/month: light-touch sales, demo calls, email follow-up
$1,000-$10,000/month: dedicated sales process, multiple stakeholders
Over $10,000/month: enterprise sales with longer cycles and procurement involvement

If the price point does not match the sales motion, one of them needs to change. The founder should be aware of this tension.

Watch for the "partnership" trap

Startups love to talk about partnerships. "We are partnering with [Big Company] to distribute our product." In reality, most early-stage partnership conversations are one-sided. The big company took a meeting. That is not a partnership.

Ask for specifics:

Is there a signed agreement?
What does each side contribute?
What is the timeline?
Has any revenue come through this partnership?

Partnerships can be powerful distribution channels, but they take months to activate and require the startup to have something the partner genuinely needs. At the seed stage, treat partnerships as upside potential, not a core GTM strategy.

The 90-day test

Here is a practical way to evaluate any GTM plan: ask the founder what their acquisition strategy looks like for the next 90 days, specifically.

A good answer includes:

How many customers they expect to acquire
Which channels they will use
How much they will spend
What metrics they will track to know if it is working

A weak answer is abstract: "We will focus on growth" or "we will iterate on our messaging." Specificity is the signal.

Why this matters for your investment decision

A startup with a mediocre product and a strong GTM strategy will almost always outperform a startup with a great product and no distribution plan. The best founding teams understand this. They spend as much time thinking about how to reach customers as they do about what to build.

When we evaluate startups at Proof Diligence, the go-to-market assessment is one of six core dimensions we review. We look at the specifics - the channels tested, the conversion data, the sales process - because the GTM plan reveals whether a startup can turn a good idea into a real business.