Buyer Persona, Customer Avatar and ICP: Three Different Things

The ideal customer profile, known as the ICP, describes the type of company worth pursuing. The buyer persona describes the person inside that company and how they decide. The customer avatar is a variant of the persona, coming out of direct response marketing, built more often on assumptions than on interviews. All three get used interchangeably in nearly every discussion, even though they answer questions that do not overlap.

TL;DR. The ICP answers “who is worth talking to”, the persona answers “how does this person decide”, and the avatar is the name the persona carries in the copywriting school. The correct order is ICP first, persona second, because a profile of a person built before you know which company you want describes somebody who could work anywhere. The most expensive mistake is not confusing the terms, it is building a document full of demographic detail that explains no decision.

What is the difference, briefly?

The most useful distinction remains the one HubSpot put in a single sentence. “Personas tell you who you’re talking to. ICPs tell you which companies are worth talking to in the first place.”

Where does each concept come from?

The persona was not born in marketing. Alan Cooper introduced it as a software design instrument, and he writes explicitly that “The Inmates Are Running the Asylum, published in 1998, introduced the use of personas as a practical interaction design tool”. In the same text, Cooper separates his concept from what marketers were already doing, noting that product marketing professionals had used similar entities for years to define demographic segments. The two traditions have been separate since the origin, which explains a good share of today’s confusion.

The marketing variant was systematised by Adele Revella, through the Buyer Persona Institute. She draws a distinction worth keeping, between the buyer persona and what she calls the “buyer profile”. The profile describes a person’s characteristics and reveals little about how you influence them, while the persona reveals the buyer’s attitudes, concerns, decision criteria and journey. Her framework, published in the book Buyer Personas in 2015, is built on five information areas, meaning priority initiatives, success factors, perceived barriers, decision criteria and the buying journey.

The ideal customer profile comes out of the software-as-a-service world. Lincoln Murphy defines it as “the type of customer that, within a clearly defined timeframe, you will dedicate sales and marketing resources to acquire”, and he is also the one who states the ordering rule, saying that persona development has to come after ICP development.

The customer avatar is the term used in direct response marketing, where it is treated openly as a synonym for the persona. What separates it from Revella’s school is not the structure but the method, because the classic instruction in copywriting manuals says to not wait for surveys or interviews and to make assumptions where you have no data. The approach makes sense when you sell a cheap product to a broad audience and can test quickly, but it becomes dangerous in a B2B sale where one cycle takes ten months.

What breaks when you confuse them?

The budget breaks, and the mechanism is always the same. A company builds a document describing “Andrew, 42, procurement director, enjoys fishing”, then uses it to decide where the money goes. That document contains no information capable of changing a decision, because age and hobby do not explain why somebody signs or refuses.

Clayton Christensen said this in a form I have not managed to improve on since. “The fact that you’re 18 to 35 years old with a college degree does not cause you to buy a product.” Description is not cause, and a profile built out of descriptions produces campaigns that speak nicely and convince nobody.

The second consequence appears at list level. A company that skips the ICP and starts directly with the persona ends up addressing the same job title at companies of completely different size and situation, so the same message goes to a two-million company and to a hundred-million one. The result shows in the reply rate, and the message looks like the cause, although the real cause is the list.

In what order do they get built?

The ICP gets built first, from your data rather than your wishes. You look at the clients who stayed longest, brought the highest margin and required the least delivery effort, then you find what they have in common in size, industry and situation. The band we work in, for example, is companies between three and thirty million euros in revenue, and it came out of analysing real clients rather than out of a preference.

The persona gets built second, from interviews with people who went through a real decision, including those who chose somebody else. Refusals explain more than acceptances, because they show you the criterion you were failing.

The third step, which almost everybody skips, is writing down what your client is not. An ICP band with no floor and no ceiling is not a decision, it is a wish list. Real segmentation means giving something up, and if your document excludes nobody, it will save you nothing.

What do you do when thirteen people decide?

This is where the classic persona model runs into difficulty, and the data shows it clearly. Forrester measured, in its January 2026 report, that a typical buying decision involves thirteen internal actors and nine external influencers, with procurement becoming a decision maker in 53% of cycles. A profile written for a single person cannot describe a process like that.

Gartner’s proposed answer is to move attention from people to jobs. Their framework describes six “buying jobs” the group has to complete, meaning problem identification, solution exploration, requirements building, supplier selection, validation and consensus creation, and the organisations that perform catalogue these jobs instead of linear journeys. The practical idea is simple. You do not need thirteen profiles, you need clarity on what the group has to resolve and the material that helps at each job.

The most neglected job of all is consensus creation. The person you convinced has to convince somebody else inside the company, often somebody who has never spoken to you, and if you give them nothing to do it with, the process stops there. We wrote about this breaking point in the article on the real buying journey as well.

What does it look like written down?

A useful ICP fits in a few lines and contains edges rather than adjectives. Here is the form we use, applied to a company selling industrial equipment.

The company we pursue is a manufacturer with revenue between five and thirty million euros, with its own production and with exports making up at least a quarter of income, at a moment when its margin has fallen for at least two consecutive financial years. We do not pursue distributors without their own production, companies below three million, or companies that already have an internal marketing department of more than five people, because the decision there gets taken differently and the cycle becomes too long.

The second part, meaning the list of those you refuse, is the part that produces the saving. It tells you, on the day a company that looks good and does not fit picks up the phone, that the correct answer is no.

The corresponding persona looks equally simple. The person who signs is the founder or managing director, who built the company on relationships and on the product, who has no time for theory and who measures everything in what remains afterwards. Their priority right now is to stop the margin decline without cutting quality. Their main barrier is that they have already worked with somebody who promised results and delivered reports, so they arrive with justified distrust. Their decision criterion is whether they can see a mechanism rather than a list of services.

Notice what is missing from the description above. There is no age, no city and no mention of weekend hobbies, because none of those elements change how you write to them or what you show them.

How do you test whether your document is good?

Through three questions, all with verifiable answers.

First. Can the document say no? If it does not produce at least one category of client you refuse, then it describes a wish rather than a decision.

Second. Could a competitor put the same document on their intranet without a single change? If yes, then you have described the category rather than your client. It is the same competitor test we apply to brand messaging, and it works just as well here.

Third. Has the document changed a decision in the last month? An ICP that is written and unused has the same value as one never written. The practical test is to look at the last five opportunities that came in and check whether anybody ran them through the filter before investing time.

Documents that fail these tests are not wrong because of their format, they are wrong because of their source. They were built out of assumptions in a meeting instead of being built out of sales data and interviews, and the difference shows precisely when somebody asks them to produce an uncomfortable decision.

What does it look like at a 3-30M EUR company?

Simpler than it appears, provided you do not copy templates. You need an ICP written in two lines, stating the size, industry and situation of the company you pursue, plus the list of those you refuse. You need one persona for the person who signs and a short description of the person who can block, because at this company size the blockage most often comes from finance or from an operations director who was never in the conversation.

The sources are already in your house. The last ten proposals you won and the last ten you lost contain nearly everything, and if you read them looking for reasons rather than justifications, what comes out is more useful than any purchased research.

This document is not a deliverable to tick off. It becomes useful only at the moment you use it to say no to an opportunity that looks good and does not fit, and that remains the only test that matters. The connection between this clarity and how the market perceives you is described at length in the article on cognitive ownership.

Frequently asked questions

How many personas do I need? One for the person who signs and one for the person who can block. Above two, the documents stop being read by anybody, and an unread document influences no decision.

Can I use demographic data at all? Yes, but as a list filter rather than as an explanation. Company size and industry help you choose who to contact, while the reason somebody buys comes from criteria and barriers, not from age.

Is that statistic about 71% of companies exceeding targets with documented personas real? The figure circulates as though it were from last year, but it comes from a Cintell study in 2016. If you use it, state the year, otherwise you repeat an error that everybody repeats.

How long does it take to build the ICP? A few days, if the sales data is at hand. The long part is not the analysis, it is the decision to exclude segments where you already have clients and find it hard to set aside.

Are ICP and target market the same thing? No. The target market describes the whole space where you could sell, while the ICP describes the part of that space you choose to pursue now, with the resources you have.

If you want to see what your real ideal client band looks like, starting from what you already have in sales, you can request a positioning analysis. It connects the client profile to how the market perceives you, because the two break together and get repaired together.