Latest / The Acquisition Talk with Fexingo: Mergers, Buyouts, and Business Sales for Operators / The Customer Concentration Trap in M&A That Cost $40 Million
Transcript
- Lucas: When you buy a company, you're buying its future revenue stream. But what if that revenue stream has a single point of failure? That's the customer concentration trap. Luna: We've covered earnouts and escrows, but customer concentration is one of those risks that can slip through because the seller presents it as a strength — 'look how sticky our largest account is.' Lucas: Exactly. I was looking at a case from last year: a private equity firm acquired a SaaS company for $200 million. The target had one customer contributing 70% of revenue. The buyer flagged it during due diligence but assumed the long-term contract would protect them. Luna: What happened? Lucas: Six months after close, that customer renegotiated — cut their spend by more than half, down to 30% of revenue. The buyer had paid a multiple based on that $200 million run rate. In reality, the sustainable revenue was closer to $100 million. They effectively overpaid by about $40 million. Luna: So the buyer didn't get any contractual protection in the purchase agreement? Lucas: They had a standard representation that the seller disclosed material customers. But there was no earnout tied to retention of that customer, no revenue covenant, no clawback. The reps and warranties insurance didn't cover business performance — only legal liability. Luna: What should the buyer have demanded? Lucas: Several things. First, a customer retention earnout: a portion of the purchase price paid out over two years if that key customer maintains at least 90% of its pre-close revenue. Second, a revenue concentration covenant in the definitive agreement — if any one customer exceeds 40% of revenue post-close, the seller indemnifies the buyer for the excess multiple paid. Luna: That's clever because it ties the deal economics to the actual risk. If the customer stays, the seller gets full value. If not, the buyer gets compensated. Lucas: Right. And there's a third tool: a valuation adjustment at closing. The buyer could say, 'Given that 70% of your revenue comes from one source, we'll apply a 15% discount to the multiple you're asking. If you retain that customer for three years, we'll true up the difference.' Luna: Does that get pushback from sellers? Lucas: Constantly. Sellers argue, 'Our customers love us, the contract is ironclad, you're overcomplicating this.' But the data tells a different story. A study by the M&A advisors at SRS Acquiom found that nearly 30% of deals with more than 50% customer concentration saw a material decline in that customer's revenue within two years post-close. Luna: So it's a real track record. How should a buyer push back on the seller's objections? Lucas: I'd frame it as a risk-sharing mechanism. 'We both believe this customer will stay. If it does, you earn full value. If it doesn't, we share the downside.' It's not about mistrust — it's about aligning incentives. And you can structure it as a simple earnout without caps or complex formulas. Luna: What about industries where customer concentration is common, like defense contracting or enterprise software? Lucas: Great point. In those sectors, a single customer might be a government or a Fortune 50 company. The risk is still there, but the buyer might accept a lower return on equity to compensate. Or they might negotiate a phased payout — say, 60% at close and 40% over two years tied to customer revenue. Luna: And what about the due diligence process itself? How do you even identify the true concentration risk? Lucas: You need to look beyond revenue share — examine customer lifetime value, churn probability, contract terms, and the relationship depth. Does the seller have a direct relationship with the economic buyer? Is there a long lead time in the sales cycle? You can also request a customer satisfaction survey or even call references with permission. Luna: But sellers often resist because they don't want the buyer spooking their customers. Lucas: That's when you use a third-party consultant or have the seller's CFO provide anonymized aggregate data. You want to see trends: is that big customer's revenue growing or shrinking? How many contacts do they have within the customer organization? If it's just one person, that's key-man risk on top of concentration. Luna: So the buyer should also consider a key-person retention package for the relationship manager. Lucas: Exactly. And if that person leaves post-close, the seller might owe a clawback. All of this gets baked into the purchase agreement. The point is: customer concentration is a deal term, not just a due diligence observation. Luna: You know, this is exactly the kind of practical, deal-shaping conversation that makes this show valuable — and why we keep it ad-free. Lucas: Absolutely. We're not here to sell you anything. We want to help operators make smarter decisions. If these conversations have moved your work forward in some small way, you can support that choice at buy me a coffee dot com slash fexingo. Luna: No pressure, no perks. Just a way to keep the content free and focused. Lucas: Alright, back to the tools. Another approach is to negotiate a revenue covenant in the credit agreement if you're financing the deal. Lenders may require the company to maintain a minimum revenue level from the top customer, or they'll trigger an accelerated repayment. Luna: That puts pressure on the company to diversify quickly. Lucas: Yes. And if the buyer is a strategic, not a financial buyer, they might have their own existing relationship with that big customer. That can mitigate the risk because they can consolidate buying power. But you still want to document the risk allocation. Luna: What about post-close integration? How does the buyer monitor the customer? Lucas: Set up a quarterly business review with the customer within the first 30 days. Assign a dedicated account manager from the buyer's side. Track early warning signs like usage drop, delayed payments, or personnel changes at the customer. And build a contingency plan — what happens if the customer leaves? Can you pivot to other segments? Luna: So the buyer should almost have a pre-mortem on that single customer. Lucas: Exactly. And if the seller pushes back on any of these protections, ask yourself: why are they so confident the customer will stay, but unwilling to tie their payout to it? That's a red flag. Luna: Are there any legal precedents where courts have upheld these kinds of earnouts or clawbacks? Lucas: Most commercial contracts are enforceable as long as the metrics are clearly defined. For example, an earnout tied to 'revenue from Customer X as defined in Schedule A' is common. The key is to avoid ambiguous terms like 'material adverse change' or 'good faith efforts.' Be specific: dollar amounts, GAAP definitions, audit rights. Luna: And if the customer has a change of control clause in its own contract with the seller, that could trigger renegotiation. Lucas: Great catch. The buyer should always get a copy of the key customer contract and check for change of control provisions. If the customer can walk away because the ownership changed, then you've got a ticking clock. That alone can kill the deal or force a lower price. Luna: So the lesson is: don't let a big customer blind you. It's an asset, but it's also a liability. Lucas: Right. Treat customer concentration like any other risk: quantify it, price it, and allocate it in the contract. That's how smart buyers avoid becoming a cautionary tale.