ICP: define your Ideal Customer Profile

Short answer: an ICP (Ideal Customer Profile) describes the type of customer best suited to your offer. In B2B, that usually means a company: the needs, characteristics and prerequisites that let you deliver value. A buyer persona describes the people within that company who choose or use your solution.

An enquiry is not automatically a suitable enquiry. A company can be enthusiastic but need something you do not provide. Or it can be a strong fit without a reason to buy yet. An ICP helps you distinguish these situations before marketing starts optimising for volume alone.

What does ICP mean?

ICP stands for Ideal Customer Profile. It describes customers whose relevant problems your offer solves, who can use the solution and who you can serve viably.

It is not just about who spends the most. Consider customer value, the effort required to deliver and the likelihood of continued satisfaction. A large project can be a poorer fit than a smaller project with a clear need and achievable expectations.

The term is particularly common in B2B marketing and sales. You can also describe an ideal customer in consumer marketing, but then you look at the characteristics and needs of people or households rather than companies.

ICP, target audience and buyer persona: what is the difference?

A company can fit your ICP while your contact has no influence over purchasing. Conversely, a decision-maker can be interested while their company is unsuitable. When using lead scoring, assess the organisation's fit as well as click behaviour.

Want to understand the people behind a purchase? Read about buyer personas. Your ICP and personas inform your positioning: who you are relevant to and why that customer would choose you.

Which criteria belong in an ICP?

There is no universal list. Use characteristics that tell you something about the value of your offer and that you can verify.

Fit is not the same as purchase intent. A suitable company does not always have an active project. A specific trigger, an enquiry or an agreed start date concerns timing. Keep that separate from whether the company fits.

In Brainport, a technical environment may be relevant to your offer. But “a technology company in Eindhoven” is not an ICP on its own. Two companies in the same industry can have very different sales processes, systems and needs. Location is context, not proof of fit.

How do you create an ICP from real evidence?

1. Look beyond your biggest customers

Compare customers on the value they receive, satisfaction, retention and delivery effort. Include margin and payment behaviour where available. Selecting on revenue alone can misrepresent which customers are a good fit.

2. Compare won, lost and ended relationships

Existing customers are not your entire market. Examine enquiries that did not become projects and customers who left. Was the reason a missing feature, different priorities, no budget or an incorrect expectation? Those differences help test your assumptions.

3. Ask about triggers and alternatives

Customer conversations add context to the numbers. What problem existed? Why did it matter at that moment? What would the customer do without your solution? Use concrete answers rather than relying only on what customers say they want.

4. Separate evidence from assumptions

Record the source behind each criterion. Does it come from several customer conversations, your CRM or a hunch? Flag uncertainty. A small customer base can offer clues without proving a relationship across the market.

5. Make the criteria usable

State what is essential, what is a preference and what still needs investigation. Missing information does not automatically make a company unsuitable. A short explanation of a criterion is often more useful than an unsupported score.

6. Test the profile against new enquiries

Check whether companies that fit your profile receive value and are viable to serve. Look beyond won deals to retention and reasons for dropping out. Adjust your ICP when your offer, market or customer evidence changes.

No customers yet? Start with a provisional hypothesis based on conversations with potential customers and concrete problems. Explicitly mark what is unproven. A profile filled in by AI is also a hypothesis, not customer research.

What does a usable ICP look like?

You do not need an invented customer name, photograph or life story. Create a compact working document with these sections:

• Offer: which solution does this profile apply to?
• Need: which problem must be present?
• Essential characteristics: what needs to be true for delivery to work?
• Preferences: what improves fit without being mandatory?
• Exclusions: when is your offer unsuitable?
• Evidence: which conversations and data support this?
• Open questions: which assumptions still need testing?

Fill it in with your own customer evidence. That makes it a decision aid rather than a description that could fit almost any company.

What is a negative ICP?

A negative ICP describes when a customer does not fit your offer. Examples include a missing technical prerequisite, needs outside your services or expectations you cannot meet.

Distinguish unsuitable from not ready yet. A company without a current purchasing budget may fit later. A company that consistently needs something different requires another offer or supplier. Do not use exclusions as automatic rejections without checking the evidence.

How do you use an ICP in marketing?

Your ICP helps align your message and lead generation. You can address relevant problems on your website, build content around questions from customer conversations and assess enquiries on fit rather than volume alone.

Not every criterion is directly available in advertising platforms. Internal processes, urgency and prerequisites are often absent from targeting settings. Use that information in campaign content, enquiry forms and conversations after an enquiry too.

An ICP is not a reason to make every company outside the profile invisible. It is a prioritisation tool, not a conversion guarantee. Leave room to learn from new customers who turn out to differ from your expectations.

Frequently asked questions

What is the difference between an ICP and a buyer persona?

In B2B, an ICP describes a suitable company. A buyer persona describes a person within that company, such as a decision-maker or user, and their questions and considerations.

Can you have several ICPs?

Yes, if you serve different offers or customer segments with substantially different needs. Do not create a separate profile for every minor variation: the distinction should change your marketing or delivery decisions.

How often should you update an ICP?

There is no fixed interval. Review it when your offer or market changes, or when new customer evidence contradicts your assumptions. Check whether it still helps identify suitable enquiries.

Is an ICP the same as purchase intent?

No. An ICP describes whether a customer fits your offer. Purchase intent concerns their willingness and reason to buy now. A company can fit well without having an active buying requirement.

Want to sharpen your ideal customer profile?

Want to check whether your customer profile, message and campaigns align? Book a strategy session. We can discuss your question and what fits.

Source and further reading

• HubSpot: the difference between ICPs and buyer personas — explanation of customer profiles and their distinction from buyer personas; consulted on 21 October 2026.