Customer Concentration Makes a Lowball More Likely
If too much of your revenue depends on one customer, your business becomes riskier to a buyer. And when risk goes up, value usually comes down.
We define a lowball as an offer of two times earnings or less. In a recent Value Builder dataset covering nearly 3,000 owners of businesses with more than $1 million in revenue, about 10% of owners whose largest customer accounted for less than 15% of revenue received a lowball. Among owners whose largest customer represented more than half of revenue, that figure rose to roughly 30%. In plain terms: a major customer concentration problem makes you about three times more likely to get lowballed.
That is the obvious version of concentration risk. But it is not the only one, and it is not always the most dangerous.
Consider Dane Pan. He and his wife built Monet Brands to $1.3 million in revenue selling a $24.99 skincare tool with a landed cost of $6.10. They had two employees, margins of 18% to 20%, and the business took about an hour a week of Dane’s time. On paper, it looked close to ideal.
But 88% of revenue came through Amazon.
Why a Platform Counts
Amazon was not a customer in the conventional sense. Thousands of individual shoppers bought from Monet Brands one order at a time. On paper, that looks diversified.
In a transaction, though, what gets priced is not the number of customers. It is the number of parties that can switch off your revenue without asking your permission. A platform counts.
Amazon can change category rules, suspend a listing while it investigates, or tweak an algorithm and move a product from page one to page four. None of that requires bad intent. It simply requires Amazon to make a decision in Amazon’s own interest.
A customer usually has to be persuaded to leave, and the warning signs tend to appear months in advance. A platform can change the terms overnight and send notice afterwards. Dane understood that risk, and it shaped his decision to sell.
What Happened When He Sold
The company went to market in May 2025. Nine buyers cleared proof of funds. Four submitted letters of intent ranging from two times SDE to four times.
Same company. Same quarter. Same financials. Yet the spread between the best offer and the worst was 2x. One of the four offers was a lowball.
Three of the four LOIs also included holdbacks, with 20% to 30% of the purchase price contingent on hitting post-close targets. Those targets were tied to sales. In an Amazon-led business, that means the seller is still carrying platform risk after giving up control.
Dane’s fractional CFO applied the right test: treat an earnout as a bonus and ask whether the deal still works if that money never arrives.
All cash at close was non-negotiable. Two buyers would not move, so those deals fell away. Of the remaining two, one had experience running Amazon businesses. That buyer had offered close to four times with a holdback attached. Once the structure changed to 100% cash at close, the final figure landed at 3.6 times SDE, with inventory paid at cost on top.
Monet Brands still sold cleanly, to a buyer Dane trusted with the brand. The 88% platform concentration did not stop the deal. But it did produce a lowball offer, and it shifted the real negotiation away from headline valuation and toward how much of the consideration was actually guaranteed.
That is what concentration costs. Not always a dramatic headline discount, but a wider spread of outcomes, weaker negotiating leverage, and more ways for a deal to go sideways.
If you want to exit on your terms, concentration is not just a sales issue. It is a value issue.