Customer Concentration Risk: What Nebraska Business Sellers Need to Know Before They List

If you're a Nebraska business owner thinking about selling, you've probably spent time preparing your financials, cleaning up your books, and thinking about what your business is worth. But there's one risk factor that can quietly derail a sale — or significantly reduce your final price — that many sellers don't see coming: customer concentration. Understanding this issue before you go to market can make the difference between a smooth transaction and a deal that falls apart in due diligence.

What Is Customer Concentration — and Why Do Buyers Care?

Customer concentration refers to how much of your revenue comes from a small number of clients. If one customer accounts for 20%, 30%, or more of your total annual revenue, buyers and their lenders will flag it as a significant risk. The concern is straightforward: if that customer leaves after the sale — or simply reduces their orders — the new owner could face a dramatic drop in income almost immediately.

This isn't just a theoretical concern. Buyers financing a purchase through an SBA loan or conventional bank financing will often face lender scrutiny around concentration. Lenders want to see that the business's revenue is durable and diversified. A business where one client drives the majority of income may be viewed as a higher-risk loan — which can affect financing terms or even loan approval.

High concentration threshold: Many buyers and lenders consider a single customer representing more than 15–20% of revenue to be a concentration concern.
Top-five concentration: Even if no single customer is dominant, buyers will look at whether the top five customers together represent an outsized share of revenue.
Contract vs. relationship-based revenue: Revenue backed by long-term contracts is viewed more favorably than revenue based on informal relationships that could walk out the door with the previous owner.
Industry context matters: In some industries — government contracting, for example — a single large client is common and expected. Buyers in those sectors understand the dynamic. In others, it's a red flag.

How Customer Concentration Affects Your Sale Price and Deal Structure

Even if a buyer is willing to proceed with a concentrated customer base, they will almost certainly adjust how they structure the deal to protect themselves. Here's what that can look like in practice:

Valuation discounts. A buyer may apply a lower multiple to your earnings to account for the risk that a key customer could leave. If your business would otherwise command a 3.5x multiple on seller's discretionary earnings, a buyer might offer 2.5x or 3x — citing concentration as the reason.

Earnouts. Rather than paying the full purchase price at closing, a buyer may propose an earnout — a portion of the price paid over time, contingent on the concentrated customer remaining and continuing to generate revenue. This shifts the risk back to the seller.

Seller notes with contingencies. A buyer may ask the seller to carry a portion of the purchase price as a note, with provisions that reduce the balance if the key customer departs within a defined period after closing.

Extended transition periods. Buyers may require the seller to stay involved longer — sometimes 12 to 24 months — to personally introduce the new owner to key accounts and help preserve those relationships.

What Nebraska Business Sellers Can Do Before Going to Market

The good news is that customer concentration is a problem you can address — if you start early enough. Sellers who take proactive steps to diversify their revenue base before listing their business are in a much stronger negotiating position.

Audit your revenue by customer: Pull three years of revenue data and calculate what percentage each customer represents. Know your numbers before a buyer does.
Actively pursue new accounts: Even modest diversification — reducing a top customer from 40% to 25% of revenue — can meaningfully improve how buyers perceive your business.
Formalize key relationships: If your largest customers are operating on handshake agreements or informal arrangements, work to get signed contracts or service agreements in place. This gives buyers confidence that the revenue is contractually protected.
Document the relationship history: Show buyers how long the key customer has been with you, the history of their orders, and any signals of loyalty or long-term commitment. Tenure and stability matter.
Prepare a customer retention narrative: Be ready to explain why your top customers do business with you — and why that relationship is transferable to a new owner. Buyers want to know the business, not just the owner, is what keeps clients coming back.

Timing: When to Start Addressing Concentration

Ideally, sellers should begin thinking about customer concentration two to three years before they plan to go to market. That's enough time to meaningfully diversify revenue, formalize contracts, and build a track record that buyers can evaluate. If you're already planning to sell in the near term, it's still worth taking whatever steps you can — even partial improvement is better than none, and being transparent with buyers about the steps you've taken demonstrates good faith.

A knowledgeable business broker can help you assess how buyers in your industry are likely to view your customer mix, and what steps will have the most impact on your valuation and deal structure. The earlier you have that conversation, the more options you have.

Hypothetical example: A Nebraska manufacturing business generates $2 million in annual revenue. One long-standing customer accounts for $700,000 — 35% of total revenue. The seller has worked with this customer for 12 years and has a signed annual supply agreement. A buyer may still apply a modest valuation discount for the concentration, but the contract and tenure significantly reduce the perceived risk compared to an informal, undocumented relationship of the same size.

Work With a Broker Who Understands What Buyers Scrutinize

Customer concentration is just one of many factors that sophisticated buyers and their advisors will examine during due diligence. Knowing how to present your business — and how to address potential concerns before they become deal-killers — is where an experienced business broker adds real value.

At Fairway Business Brokers, we work with Nebraska business owners to prepare for a successful sale from the ground up. As brokers based in Omaha, we understand the Nebraska market and the questions buyers will ask. If you're thinking about selling your business — now or in the next few years — we'd welcome the conversation. Visit our seller page to get started, or reach out directly to Kevin Kohler at [email protected] or fairwaybb.com.