“Our ICP is mid-market SaaS companies with 50-500 employees.”
I’ve heard some version of this sentence from almost every B2B startup I’ve worked with. It sounds like a strategy. It isn’t.
A target market is who you could sell to. An ICP is who you should sell to — the specific type of company where your product creates disproportionate value, closes fastest, churns least, and expands most.
The difference between the two determines how efficiently you grow.
What a real ICP contains
A useful ICP has three layers that most teams skip:
Layer 1: Firmographic (everyone has this) Industry, company size, geography, revenue stage. Necessary but not sufficient.
Layer 2: Situational (most teams miss this) What is happening inside the company that makes them ready to buy right now? A new VP of Sales. A recent funding round. A failed implementation with a competitor. Situational triggers are what separate a prospect who fits your ICP from one who is ready to act on it.
Layer 3: Behavioral (almost nobody has this) How do they buy? Who is involved in the decision? How long do they take? What does their evaluation process look like? Behavioral data comes from your closed-won and closed-lost deals, and it’s more predictive than any firmographic filter.
Why this matters for revenue
If your ICP is vague, your entire revenue function becomes inefficient:
- Marketing targets a broad audience and generates leads your sales team won’t pursue
- Sales spends time on deals that fit the demographic but lack the trigger
- CS inherits customers who were never really a fit, and retention suffers
Every part of the revenue equation — from content topics to outreach sequences to pricing thresholds — should be calibrated against a sharp ICP definition.
How to sharpen yours
Pull your last 20 closed-won deals. Look for patterns beyond firmographics:
- What triggered the evaluation?
- Who championed the deal internally?
- What was the primary use case they paid for?
- How long from first contact to signed contract?
Then pull your last 20 churned customers and look for the inverse patterns. The gap between those two cohorts is where your real ICP lives.
Precision beats volume in B2B. Every week I write about the thinking behind better revenue decisions.