Customer Concentration Risk

Customer concentration risk arises when a significant amount of sales or gross profit comes from a small number of accounts. A company can be growing overall while remaining vulnerable to the loss of its largest contract. Concentration may be measured by the percentage of revenue from the top customer, top five customers, or a particular contract type, but the risk depends on more than a single threshold.

Consider whether major accounts can terminate quickly, whether revenue is recurring, how difficult replacement work would be, and whether those accounts have overlapping industry or regional exposure. A business might reduce risk by developing additional customer segments, building a sustainable referral pipeline, or negotiating realistic contract terms. Concentration itself is not proof of poor management: large strategic accounts can also provide predictable volume.

Customer concentration is different from customer segmentation. Segmentation groups customers for analysis or marketing; concentration measures dependence and the consequences of losing a major account.