Buyer Persona vs ICP

These two get used interchangeably often enough that it's worth being precise. An Ideal Customer Profile (ICP) describes the company: industry, size, geography, and similar firmographic traits. A buyer persona describes the person inside that company you're actually talking to: their title, responsibilities, goals, and objections.

Why you need both, and in this order

The ICP answers "which companies should be on our list." The persona answers "who at that company do we actually call, and what do they care about." Building a persona without an ICP means you know how to talk to a "Head of Sales" in the abstract but have no filter for which companies' Heads of Sales are worth calling. Building an ICP without a persona means you have a great company list and no idea who to ask for when you call.

	ICP	Buyer persona
Level	Company	Individual
Example attributes	Industry, size, geography, growth stage	Title, seniority, goals, objections, preferred channel
Used to	Build a target account list	Write outreach messaging and pick who to contact at each account

A common small-team mistake

Skipping the ICP step and going straight to "we sell to Heads of Sales" as if that's a complete targeting strategy. It isn't, it tells you a title to search for, not which of the thousands of companies with that title are actually worth your time. The ICP is the filter that comes first.