Why your ICP is probably wrong

Ask most B2B SaaS founders who their ideal customer is and they'll answer quickly. A company size. An industry. A job title. Maybe a geography.

That's not an ICP. That's a demographic filter.

The distinction matters more than most founders realise, and it explains a lot of growth problems that get attributed to the wrong cause.

What a demographic profile actually tells you

A demographic profile tells you where to look. It doesn't tell you who to find when you get there.

Two companies in the same industry, same size, same geography, with the same job titles in the buying committee can have completely different relationships to your product. One has a problem your product solves precisely. The other has a problem that's adjacent enough to be interesting but not urgent enough to drive a decision.

A demographic filter gets you in front of both equally. Your positioning, your messaging, your sales conversations, all calibrated to the same profile, reach two completely different buyers and treat them the same way.

That's why conversion feels inconsistent. The profile is right but the targeting is imprecise. You're reaching the right category of company and the wrong subset of it.

The layer that's missing

The ICP question most founders haven't answered isn't who buys. It's why they buy.

What is happening inside that company at the moment they decide to look for a solution? What has changed, or failed to change, that made the problem urgent enough to act on? What have they already tried? What are they afraid of getting wrong?

These are motivational and behavioural attributes. They tell you not just what the company looks like from the outside but what the buying situation looks like from the inside. And they're the layer of the ICP that makes positioning possible.

Without them, positioning is generic. The message has to be broad enough to be relevant to anyone who matches the demographic. Which means it's specific enough for no one in particular.

Why founders are confident they have this figured out

Early customers create the illusion of ICP clarity.

You closed those deals. You know those customers. You can describe them in detail. That feels like ICP knowledge because it is, partly. But early customers are a specific type of buyer. They tolerated more ambiguity. They did more work to understand how the product applied to their situation. They bought despite the fact that the positioning wasn't perfectly calibrated for them.

The insight they provide is real but incomplete. They tell you who can buy. They don't always tell you who you should be building the ICP and positioning around.

The customers who are easiest to acquire at scale, who retain longest, who expand fastest, who refer most readily, are often a subset of early customers rather than a reflection of all of them. Identifying that subset precisely is where ICP work actually starts.

What imprecise targeting costs

When the ICP is defined at the demographic level only, the product ends up positioned for a buyer who is real but not ideal. The messaging was built on top of that definition. Everything downstream is working correctly, just against the wrong target.

That's a structural problem, not an execution one. The channel isn't underperforming. The messaging isn't weak. The sales team isn't underqualified. The foundation they're all building on was set before the motivational layer was resolved.

Fixing activity in that situation produces marginal results. The leverage is one level up, before any of those decisions were made.

What a precise ICP makes possible

When the ICP is defined at the motivational level, everything built on top of it changes.

Positioning becomes specific enough to resonate rather than just be relevant. Messaging can speak to the trigger event that brought the buyer to the problem, not just the problem itself. Sales conversations start from a shared understanding of the situation rather than having to establish it from scratch on every call.

The right buyers recognise themselves immediately. The wrong buyers self-select out earlier. Both outcomes improve efficiency.

That's not a minor optimisation. For a company at seed to Series A, it's often the difference between growth that compounds and growth that requires constant manual effort to sustain.

Constantinos Tsangaris, GTM Advisor at DigitallPeek. Works with B2B SaaS founders and leaders to define ICP, positioning, and messaging before execution begins.