Your ideal customer profile is not invented in a workshop — it is already written in your invoicing. Pull your last twenty jobs, rank them by margin and by how much you enjoyed delivering them, and look at what the top five have in common. In nine out of ten companies we have worked with, the answer was already there — sector, size, trigger, decision-maker — and nobody had ever written it down.
This piece gives you the sheet to fill in, eight lines long, plus the three mistakes that make the whole exercise useless. It follows on from brand identity for a small business, where this is the second decision: a promise with nobody at the other end does not hold.
Target market, ICP and persona are three different things
Your target market is a market: general contractors in Greater Montreal. Your ideal customer profile is the kind of company or household that, in your business specifically, pays more and costs less: the general contractor with 8 to 30 employees who subcontracts finishing work and runs projects above $200,000. Your persona is the human being deciding inside that company: the project manager, 35 to 50, who does not read email before five in the afternoon.
All three are useful, but not at the same moment. The ICP decides who you go after and which enquiries you turn down. The persona decides how you write: tone, channel, send time. Blurring the two produces twenty-page documents about a fictional character’s hobbies, and changes no business decision at all.
The eight-line sheet
A useful ICP sheet fits on one page and is filled in with verifiable facts, not hunches. Here are the eight lines, in the order they are easiest to complete.
- Sector and size. As narrow as you can stand: “cabinet shop, 5 to 20 employees”, not “manufacturing SMB”.
- Territory. The real radius you can serve without losing money on travel.
- Trigger. The event that makes someone call you this week instead of next year: a contract won, an employee leaving, a failed inspection, a site going down.
- Decision-maker and influencers. Who signs, who can say no, who can only say yes.
- Job value. The average ticket, and the floor below which you decline.
- What they are afraid of. One sentence, in their own words, lifted from a real email.
- Where they look. Google, a referral from a peer, a trade association, a supplier. One dominant channel, not a list.
- Why the others lose. What your competitors do badly on this exact profile.
Line three is the one that changes the most. An ICP with no trigger is a theoretical ICP: you know who to talk to, but not when. And the when is what sets your outbound calendar, your seasonal campaigns, and the moment your content needs to already be live — not when the need appears, but three weeks before it does.
An ideal customer profile that excludes nobody has done nothing.
The three mistakes that void the exercise
Describing the customer you wish you had. This is the most common one. A residential renovation firm that writes “property developers” on its sheet is describing an ambition, not a profile. The ambition may be sound, but it belongs in a growth plan, not in the sheet that steers the next twelve months of marketing.
Refusing to choose. A sheet that keeps three profiles “so we do not close any doors” produces no decisions. If you genuinely have three distinct profiles, write three sheets and rank them: the first gets 70% of the effort, the other two share what is left. A plan that treats three profiles equally serves none of them properly.
Filling the sheet with adjectives. “Quality-conscious”, “values good service” — everyone is, and nothing follows from it. A line is useful when it lets you answer yes or no to a concrete question: does this prospect fit the profile? If it cannot settle that, it is decoration.
What the sheet actually changes
Four measurable things. Your cost per lead first: a campaign aimed at a narrow profile costs less than a broad one, because it buys fewer useless clicks. Sector by sector benchmarks are in our cost-per-lead breakdown, and the gap between loose and tight targeting is often more than double.
Your quote-to-enquiry rate next: fewer enquiries, but enquiries that look like you. Your content calendar too — the trigger on line three dictates what to publish and when, a principle we set out in building a content strategy. And finally your outbound, which stops being a mass send and becomes a short list of accounts that genuinely match.
In B2B the sheet becomes the filter for the entire sales motion: it decides who gets on the call list and who does not. We describe how that works on our industrial B2B page, and the logic is identical for a home-services company.
How often to revisit it
Once a year, and any time your revenue mix shifts by more than 20%. An ICP sheet that has not changed in five years probably describes the company you used to be. The review takes an hour if the invoicing is current: same exercise, twelve more months of data.
If you want a quick read before you go digging through invoices, the free marketing diagnostic asks eight questions and returns a score out of 100 with your top three priorities — this one being, very often, among them.