What Is an ICP? How to Write One in 30 Minutes
An ideal customer profile tells you which companies to contact first. A one-page template and how to fill it from your best customers.
An ideal customer profile, or ICP, describes the type of company that gets the most value from your product and is most likely to buy. It is not a wish list. It is a filter you use every day to decide who goes on a list and who does not.
A good ICP fits on one page and takes about 30 minutes to write the first time.
Why you need one
Without an ICP, every list is a guess. Teams contact anyone who looks roughly right, reply rates stay low and nobody can say why. With one, you can:
- build smaller, better lists,
- explain to a new teammate who to contact in two minutes,
- score leads consistently instead of by gut feeling,
- protect your sender reputationSender reputationHow much inbox providers trust your domain, based on bounces, complaints and engagement. by not writing to people who will never buy.
Start from your best customers
Do not start from who you would like to sell to. Start from who already bought and stayed. List your five to ten best customers, then look for what they share. If you have no customers yet, use the companies where your early conversations went furthest.
The one-page template
Fill in each line. Be specific enough that two people would build the same list from it.
- Industry: what they do, in their words. "E-commerce brands selling apparel" beats "retail".
- Size: employee range or revenue range.
- Location: countries or regions you can actually serve.
- Situation: what is happening at the company that makes you relevant. Hiring sales staff, opening a new market, launching a product.
- Problem: the pain you solve, as they would describe it.
- Who decides: the role of the decision makerDecision makerThe person who can say yes to a purchase, or block it., and who else is involved.
- Disqualifiers: what rules a company out, even if everything else fits.
Lines one to three are firmographicsFirmographicsCompany-level facts used for targeting: industry, size, location, revenue and tech stack.: easy to check and filter. Lines four and five are where the real targeting happens.
An example
B2B software companies with 20–200 employees, selling to e-commerce brands in Europe. They have at least two salespeople and no dedicated SDR yet. The head of sales decides; the founder signs. Not a fit: agencies, or companies selling only to consumers.
Short, specific and easy to test against a real website.
ICP is not a persona
Your ICP describes companies. A buyer personaBuyer personaA description of the person who buys: their role, goals, daily problems and how they evaluate tools. describes the people inside them. You need both, but they answer different questions. See ICP vs Buyer Persona.
Keep it alive
Review your ICP every quarter. Look at which leads replied, which became customers and which churned. Tighten the lines that let bad fits through. An ICP that never changes is usually one nobody is using.
