ICP Definition — The 4-Layer Stack

A real ICP is specific enough to name the companies and explain why each belongs.

01
Firmographic
Company size, industry, geography, revenue range. The baseline filters that narrow your universe.
Company size · Industry · Geography
02
Technographic
What tools they already use. Their technical maturity and stack complexity signal integration fit.
Tech stack · Maturity level
03
Situational
What changed recently — new funding, leadership, competitive pressure, regulatory change. Trigger events.
Trigger events · Buying moments
04
Behavioural
How they evaluate software. Trial first? Procurement early? Read reviews? Determines your sales motion.
Evaluation pattern · Decision process
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