Customer Concentration Visualizer

Average revenue per customer hides a common and risky pattern: a small number of large accounts making up most of your MRR, with everyone else contributing comparatively little. If your two biggest customers together are close to half your revenue, losing either one is a very different event than losing an average customer — and a flat customer list or a single ARPU number won't show you that.

This visualizer sorts your customers by MRR and plots them as a Pareto chart, so concentration is visible at a glance instead of buried in a spreadsheet.

Enter each customer's name and MRR as its own row. Add or remove rows to match however many customers you want to include.

The chart sorts customers from highest to lowest MRR automatically — you don't need to sort your input.

Bars show each customer's MRR (left axis); the line shows cumulative percentage of total MRR as you move through customers left to right (right axis).

• The bars, tallest to shortest, show your revenue distribution — a few tall bars followed by a long tail of short ones is a concentrated customer base.
• The cumulative line answers 'what share of my MRR comes from my top N customers' directly — find N on the x-axis and read the line's height at that point.
• A cumulative line that reaches 80-90% within the first few customers signals high concentration; a line that climbs more gradually across many customers signals a more distributed base.

• A high Top-1 or Top-5 share means revenue continuity depends heavily on a small number of relationships — a single cancellation or a single renewal negotiation can materially move your total MRR.
• This concentration is a factual property of the customer list you entered — it doesn't indicate whether any specific customer is at risk of churning.
• Comparing this chart over time (re-entering an updated customer list periodically) shows whether concentration is increasing or decreasing as you grow.

Customers are sorted by MRR in descending order. Cumulative percentage after customer i = (sum of MRR for customers 1 through i) ÷ total MRR × 100. Top 1 and Top 5 (or fewer, if you entered fewer than 5 customers) shares are computed the same way for exactly the top 1 and top 5 rows after sorting.

This tool displays exactly the customers and MRR values you enter — it does not pull customer data from billing systems, does not track concentration over time automatically, and does not assess churn risk for any customer. Customer names are for your own reference only and aren't validated or deduplicated. Manual entry only in this version; CSV/file upload and export are not yet available.

Pricing & Plan Distribution Visualizer →