Customer Concentration is a measure of the distribution of recurring revenue within a company’s customer base. For each customer, the cumulative percent of customers (from largest to smallest) and recurring revenue they represent is graphed on the chart. For example, for a company with 20 customers and $500 in revenue, where the largest customer produces $100 per month in revenue: 5% of customers (1/20) produces 20% of revenue (100/500). SaaSGrid always calculates Customer Concentration using the last complete month of the dataset.