Ideal customer profile (ICP)

A buyer persona describes the individuals inside those companies: their role, goals and objections. A useful ICP mixes firmographics (industry, employee count, revenue, region), technographics (the tools they use) and a trigger that makes them likely to buy now, such as a funding round or a new sales leader.

You build it from your best current customers: the ones who closed fastest, pay the most, churn least and would refer you. Find what they share and write it down as filters someone else could apply to a database. If two people would build different lists from your ICP, it's too vague.

Example ICP for an HR software vendor: US and Canadian professional services firms with 50 to 500 employees, using Google Workspace and a separate payroll provider, that have hired an HR manager in the last 12 months. The filters are specific enough that two reps would pull nearly the same accounts.

Outbound depends on the ICP more than any other channel, because you choose who receives the message. A tight ICP tends to raise reply rates and protects sender reputation, since fewer uninterested people mark your emails as spam. Teams usually keep one ICP per product line and check it each quarter against closed-won deals.