Your next growth segment is already in your CRM
Pull your last 50 closed-won deals. Flag every customer that does not match your ICP. Now look at what those flagged accounts have in common.
Those off-profile wins are not noise. They are customers who found a use case you never marketed — and who fought through positioning that was not written for them, then bought anyway. That is the strongest demand signal a company can get: demand that survived zero marketing support.
Most teams treat these deals as anomalies and get back to the ICP. Growing teams treat them as a map. Cluster the outliers by industry, use case, and buying trigger, and one of those clusters is usually a segment worth naming out loud — a page on the site, a sequence in the outbound, a line in the sales deck.
The economics are what make this the first place to look. Expanding into a segment your product already wins requires no roadmap changes, no new pricing architecture, and no upmarket sales motion. It requires marketing operations pointed at buyers who already exist — which is a much cheaper problem than the ones most growth plans start with.
The exercise takes an afternoon. What it usually surfaces takes a quarter to capture — and it is the fastest quarter of growth most mid-market software companies have available to them.