Relying on just two or three clients for the majority of your income makes your company fragile and difficult to transfer. This is called customer concentration, and it’s the “silent deal killer” when it comes time to sell. Learn how leveraging professional business broker services in Pennsylvania can help you identify this hidden risk and diversify your client base before buyers use it to discount your sale price.
When a business doesn’t sell, most owners blame the market.
They point to the economy, the timing, or say that buyers just weren’t serious enough. And on the surface, that explanation feels reasonable.
But when you look at the data, a different pattern starts to appear.
According to the Exit Planning Institute, a large percentage of businesses that go up for sale never actually close.¹ And in many of those cases, the issue isn’t profitability, the team, or even the asking price.
It’s something far less obvious.
Customer concentration.
Understanding the Risk
At first, having a big client can feel like a win. It means steady revenue, a strong relationship, and a sense of security.
But from a buyer’s perspective, that same situation can look very different.
When one customer makes up more than 15 to 20 percent of your revenue, it introduces a level of risk that can’t be ignored.² If that client leaves after the sale, a significant portion of the business could disappear overnight.
That uncertainty is what makes buyers pause.
Advisors like Aberdeen consistently point out that customer concentration is one of the most common hidden risks that reduces a company’s value.³ Not because the business isn’t good, but because too much depends on too little.
And when buyers see that, they tend to respond in predictable ways. They either lower their offer to protect themselves, or they decide the risk isn’t worth taking at all.
The Numbers Behind the Risk
This isn’t just theoretical. It has a direct impact on what your business is worth.
Businesses with high customer concentration often sell for 20 to 40 percent less than similar companies with a more balanced customer base.⁵ That’s a meaningful difference.
For example, a business that could have sold for 4 million might end up closer to 3 million simply because too much revenue is tied to a small number of clients.
It also affects more than just price. Deals tend to move slower, require more scrutiny, and are more likely to fall apart during negotiations.⁷
How to Know if You Are at Risk
The good news is that this is easy to spot once you know what to look for.
Start by listing your top five customers and calculating how much revenue each one contributes.
If one client accounts for more than 20 percent, there’s a clear risk.
If your top three customers make up around half your revenue, that risk becomes more serious.
And if a single client is above 30 percent, it’s a major red flag.³
When buyers evaluate your business, they don’t just take your numbers at face value. They adjust them based on risk.
So even if your business earns 1 million, a buyer might discount a portion of that income if it depends too heavily on one client. In some cases, that 1 million could be treated as 800,000 or less, which directly lowers your valuation.⁸
What to Do About It
The important thing to understand is that this problem can be fixed.
It starts with clarity. You need to know exactly where your revenue is coming from and how concentrated it is.
From there, strengthening your position becomes much more practical. Formal agreements can help protect key relationships and make your business more stable in the eyes of a buyer.⁹
But the real long-term solution is diversification.
Bringing in new customers takes time, but it reduces risk, improves your negotiating position, and ultimately makes your business far more attractive when it’s time to sell.
My Invitation to You
If you’re not sure where you stand, that’s the best place to start.
I offer a free Customer Concentration Assessment where we look at your numbers together, identify any risks, and map out simple ways to reduce them.
No pressure. Just clarity.
Sources
¹ Exit Planning Institute, National State of Owner Readiness Report, https://exit-planning-institute.org/state-of-owner-readiness/
² Aberdeen Advisors, Hidden Risks That Reduce Valuation, https://aberdeenadvisors.com/insights/
³ Ibid.
⁴ General market analysis on customer concentration and bargaining power (e.g., Motley Fool insights), https://www.fool.com/investing/
⁵ Exit Planning Institute, op. cit., https://www.bvresources.com/
⁶ MDPI Sustainability Journal, Customer Concentration and Bargaining Power, https://www.mdpi.com/2071-1050
⁷ Value Builder Analytics, aggregated business owner data, https://valuebuilder.com/
⁸ Business Valuation Resources, Business Reference Guide, https://www.bvresources.com/
⁹ Harvard Business Review, Selling Your Family Business, https://hbr.org/2023/05/when-its-time-to-sell-your-family-business
