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Customer Concentration and Risk in Acquisition Targets

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Reyyan Turan
Reyyan Turan
Written on March 4, 2026 Updated on March 6, 2026

Customer Concentration and Risk in Acquisition Targets

Customer relationships are central to the financial health of many lower middle market businesses.

However, when a large percentage of revenue depends on a small number of customers, the company may face customer concentration risk.

Evaluating this risk is an important component of acquisition screening during the search phase.

Understanding Customer Concentration

Customer concentration occurs when a significant portion of a company’s revenue comes from a limited number of clients.

For example, if a single customer accounts for 40% of total revenue, the loss of that relationship could materially impact the company’s financial performance.

Searchers must therefore evaluate both the stability of major customers and the overall diversification of the customer base.

Industry Context

Customer concentration does not necessarily disqualify a business from consideration.

In some industries, large long-term contracts with a small number of clients may represent stable and predictable revenue streams.

However, in other contexts, heavy dependence on a few customers may introduce unacceptable volatility.

Searchers must evaluate these dynamics within the broader industry context.

Transition Risk

Customer concentration also introduces potential transition risk during ownership changes.

Customers who have longstanding relationships with the founder may require reassurance when leadership transitions occur.

Understanding the strength and durability of these relationships is therefore essential during early evaluation stages.

Customer concentration analysis provides valuable insight into the stability of potential acquisition targets.

By evaluating both the financial implications and the relational dynamics of key customer accounts, searchers can better assess whether a business aligns with their risk tolerance and operational capabilities.

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