What It Is
The 5segs (five-segment) customer map is a behavioral segmentation framework introduced by Janelle Nishiguchi in The Customer (also referenced as STCK). It classifies everyone in your addressable market into five tiers based on purchase frequency and recency. The 9segs extension adds an attitudinal dimension (purchase intent) to split most tiers into "positive" and "negative" sub-segments, yielding nine groups that are more strategically actionable.
When to Use It
- When you need a simple, data-driven view of your entire customer base to guide strategy.
- When growth has stalled and you need to diagnose whether the problem is acquisition, retention, or frequency.
- When marketing and product teams are treating all customers identically and need differentiated strategies.
- As a recurring health check: re-run the segmentation quarterly to track movement between tiers.
How It Works
The 5segs Pyramid
From top (smallest, most valuable) to bottom (largest, least engaged):
- Loyal Customers — Buy frequently and consistently. Your core revenue base.
- General Customers — Buy regularly but not as often as loyals. Solid but not deeply attached.
- Light Customers — Have purchased but infrequently. Weak relationship.
- Lapsed Customers — Purchased in the past but have stopped. At risk or already gone.
- Non-customers (Aware) — Know about you but have never purchased.
A sixth implicit group — people completely unaware of you — sits below the pyramid but is usually excluded from analysis.
The 9segs Extension
Add a single attitudinal question: "How likely are you to purchase [brand] next time?" Split each segment (except Loyal, which is already high-intent) into:
- Positive — Would consider purchasing again or for the first time.
- Negative — Would not consider purchasing.
This produces nine segments. The strategic value is that a "Light-Positive" customer needs a completely different intervention than a "Light-Negative" one — the first might respond to a frequency program; the second needs re-education or repositioning.
Strategic Application
- Calculate the size and revenue contribution of each segment.
- Identify the largest leverage point: Is it converting Non-customers? Reactivating Lapsed? Increasing Light frequency?
- Design targeted interventions per segment rather than one-size-fits-all campaigns.
- Track segment migration over time to measure strategy effectiveness.
Key Principles
- Not all customers are equal. Treating them as one group hides the real dynamics. A small shift in Loyal retention can matter more than a large Non-customer campaign.
- Movement between segments is the metric. Static segment sizes are a snapshot; the flow between them over time tells you whether your strategy is working.
- Attitude plus behavior beats either alone. Behavior tells you what happened; attitude predicts what will happen next. The 9segs combination is more actionable than either dimension by itself.
- Start with data you already have. Purchase history and a one-question survey are enough to build the map. You do not need a massive research project.
Common Mistakes
- Ignoring Lapsed customers. They already know your product and once chose it. Reactivation is often cheaper than new acquisition, but teams forget about them.
- Optimizing only for acquisition. Pouring resources into Non-customers while Loyal customers churn is a leaky bucket. Check the top of the pyramid first.
- Using the map once and filing it away. The value is in tracking movement quarterly. A single snapshot does not reveal trends.
Source
Janelle Nishiguchi, The Customer (referenced as STCK in this wiki). The 5segs model is introduced as the foundational segmentation framework, with the 9segs extension presented as the advanced application for strategy design.
