ICP

What is an Ideal Customer Profile (ICP)?

ICP (Ideal Customer Profile) describes the type of company that benefits most from an offer and is economically the most valuable customer for the provider. The profile consists of verifiable criteria such as industry, size, region, systems in use and typical purchase triggers, and is supplemented by exclusion criteria.

The ICP refers to organisations, not to individual people. Who decides and takes part in these companies is described by the buyer persona. Figuratively speaking, the ICP determines which doors sales knocks on; the persona describes who opens and what persuades that person. Together they form the target segment of the GTM strategy. The ICP is used in sales for target lists and for assessing incoming enquiries, in product management for priorities, and in funding rounds as the basis of the market size calculation.

Criteria of an ICP

An ICP is only as useful as its criteria are verifiable. Each criterion must be ascertainable from registers, company databases, the company's public information or, at the latest, in the first conversation. Four groups are usual:

• Company data (firmographics): industry and sub-industry, number of employees or revenue size, region, number of locations, where relevant membership of a group of companies.
• Technical criteria: systems in use to which the product connects, for example a particular software for orders, warehouse and accounting (ERP system) or a particular merchandise management system.
• Organisational maturity: whether the function that the product serves exists, for example a dedicated quality assurance or a dedicated controlling function.
• Purchase triggers: events that create demand, for example a new regulation, an upcoming certification, an expansion of locations, a change in management or a completed funding round.

Exclusion criteria are just as important. They name companies that would buy but cause high support effort, have long decision paths or cancel more often than average. Only they change the work of sales, because they determine which enquiries are not pursued.

Deriving it from the company's own customer data

A reliable ICP emerges from analysing the company's own customer base, not from assumptions. Existing customers are ordered by economic measures: annual contract value, cancellation behaviour (churn rate), expansion of the contract over time, support effort, length of the sales cycle and acquisition costs. Acquisition costs are the marketing and sales costs incurred for a new customer. It is then examined which criteria the most valuable customers share and which occur more often among the weakest.

Cohort analysis (cohort analysis) is a suitable method; it groups customers by acquisition period and segment and tracks their revenue development. Lost sales opportunities belong in the analysis: if sales processes in a segment regularly fail at the same hurdle, that speaks against the segment. The data for this sit in the CRM (customer relationship management), the system in which customers, contacts and sales opportunities are managed, and in invoicing.

Young companies with few customers first formulate the ICP as a hypothesis drawn from pilot projects and conversations with prospects. With each further customer cohort the hypothesis is tested and sharpened.

Significance for market size, planning and due diligence

The ICP is the counting basis of a bottom-up market size calculation (bottom-up market sizing): the number of companies that meet the profile, multiplied by the expected annual contract value. The result is the serviceable market (serviceable addressable market). Investors generally regard such a derivation as more reliable than a share of a large total market, because every figure can be verified.

In due diligence, the thorough review before an investment or purchase, investors and buyers compare the metrics in the ICP segment with those of the rest of the customer base. They also check whether the plan draws its growth from this segment. If revenue comes mainly from customers outside the described profile, either the profile is described wrongly or sales is not reaching the target segment. Both affect valuation, because churn rates and acquisition costs in the segment determine customer value.

Worked example

A provider of software for quality management has 100 customers. The analysis yields two groups: 40 manufacturing companies with 50 to 250 employees and their own quality assurance (segment A) and 60 smaller businesses without a dedicated quality function (segment B). Customer lifetime value (LTV) is calculated, in simplified form, as annual gross profit divided by the annual cancellation rate. Gross profit is revenue after the direct costs of operation and support. Dividing by the cancellation rate stands for the average duration of the customer relationship. With 12% cancellations per year, a customer stays on average 1 divided by 12% = around 8.3 years, with 35% around 2.9 years.

• Segment A: annual contract value EUR 18,000, gross margin 80%, cancellation rate 12% per year, acquisition costs EUR 24,000
• Customer value A: EUR 18,000 × 80% = EUR 14,400 per year; EUR 14,400 divided by 12% = EUR 120,000
• Ratio of customer value to acquisition costs A: EUR 120,000 divided by EUR 24,000 = 5.0
• Segment B: annual contract value EUR 7,000, gross margin 70% owing to higher support effort, cancellation rate 35% per year, acquisition costs EUR 7,000
• Customer value B: EUR 7,000 × 70% = EUR 4,900 per year; EUR 4,900 divided by 35% = EUR 14,000
• Ratio of customer value to acquisition costs B: EUR 14,000 divided by EUR 7,000 = 2.0
• Revenue: segment A 40 × EUR 18,000 = EUR 720,000, segment B 60 × EUR 7,000 = EUR 420,000; segment A generates around 63% of revenue with 40% of customers

Segment A lies clearly above the widespread minimum of 3 to 1 for the LTV/CAC ratio, segment B below it. The ICP is therefore fixed on segment A, and the absence of a dedicated quality function becomes an exclusion criterion for active outreach. Existing customers from segment B continue to be served but are no longer specifically targeted. For market size, only companies with the characteristics of segment A count.

Distinction from related terms

• Buyer persona: describes the people in the target company with role, goals, objections and decision-making authority. The ICP determines which companies are approached; the persona determines who is addressed there and how.
• Target group: a broader marketing term that often also includes companies with weak metrics. The ICP is narrower and economically grounded.
• Serviceable addressable market: the size, expressed in EUR, of the market that the offer can serve. The ICP supplies the number of suitable companies for it.
• Lead scoring: the rating of individual prospects by profile fit and behaviour in lead generation. The criteria for profile fit come from the ICP.

Common mistakes

• Too broad. “Mid-sized companies in Germany” is not a profile. If no target list of specific companies can be drawn up from the ICP, it is too blurred.
• Wish instead of analysis. A profile that describes the customers the team would like to have, instead of those with the best metrics, steers sales into segments with unverified profitability.
• No exclusion criteria. Without them every enquiry remains worth pursuing, and the ICP does not change sales work.
• Criteria that cannot be verified. Criteria such as “open to innovation” cannot be established before first contact and are therefore suitable neither for target lists nor for assessing enquiries.
• Never reviewed. If product, price or market change, the segment with the best metrics shifts too. An ICP that is not reconciled with new cohorts becomes outdated.

Frequently asked questions

How do ICP and buyer persona differ?

The ICP describes companies, the buyer persona people in these companies. The ICP determines the target list; the persona determines outreach, arguments and the order in which those involved are brought in.

Can a young company without a large customer base define an ICP?

Yes, as a hypothesis. The basis is the first customers, pilot projects and conversations with prospects, including those who decided against buying. With each new customer cohort, the hypothesis is measured against cancellation rates and contract values.

May sales accept customers outside the ICP?

Yes, an ICP is not a sales ban. It steers whom sales approaches actively and on what budget is spent. Customers outside the profile are best reported separately in the metrics so that they do not distort the analysis of the core segment.

Can a company have several ICPs?

Yes, but every additional profile has its price. It needs its own outreach, its own reference customers and its own metrics. In the early growth phase, companies therefore usually concentrate on one profile and expand only once it delivers customers repeatably.

How often should the ICP be reviewed?

At a fixed rhythm, for example every six months, and additionally with every major change of product or price. The review checks whether new deals come from the profile and whether the metrics in the segment remain better than in the rest of the customer base.

The Roemer Capital view

For the data room, we prepare with the management a segment analysis of the customer base: contract value, cancellation rate and acquisition costs per segment, together with the reasoning why the described profile is the core segment. Investors ask this question in due diligence anyway, and an answer drawn from the company's raw data carries further than a description from marketing.

We derive the market size in the pitch deck from the number of companies that meet the ICP. A smaller but verifiable market is more reliable in conversations with investors than a large total market from which the company is supposed to win an undefined share.