Vol 1 · Issue 97 · Monday, August 24, 2026

Ray called me on a Tuesday back in February. He runs a commercial landscaping outfit outside Charlotte. Twenty-two guys, a yard full of equipment he was still making payments on, and a truck nice enough that his brother-in-law had opinions about it.

He was doing about eighty grand a month. Good business. Real business. The kind where you stop hedging when somebody at a wedding asks what you do for a living.

Then he got to the part he'd been circling for ten minutes.

One client, a property management group with eleven office parks, was sixty-one percent of that revenue. And that morning they'd sent an email asking to revisit the arrangement at the end of the quarter.

Ray wasn't calling me for strategy. He'd already run the math at three in the morning, the way everybody does. He was calling because he wanted somebody with no skin in the game to tell him he was overreacting.

I couldn't do that for him.

Here's what most owners get wrong about concentration risk. You think the danger is the day they leave. It isn't. The danger started the day they became your biggest client, and you've been paying for it every month since without ever writing it down anywhere.

Think about the last time that big account asked for something outside the agreement. Did you push back? Did you quote it? Or did you say yeah, we can figure that out, and then eat it, because the relationship felt worth more than the hour?

Ray had been doing exactly that for two years. Extra mulch runs. Emergency storm cleanup at no charge, twice, including one that cost him a Saturday and a rented lift. A winter contract he priced twelve percent under his own standard rate because he didn't want to hand them a reason to shop it.

That's the tax. It shows up as free work, discounted renewals, scope you'd never accept from a smaller client, and a decision-making style where one guy's mood dictates your entire Thursday.

You don't feel it, because it never arrives as a bill. It arrives as a series of small yeses that each seemed perfectly reasonable at the time.

And it compounds. While you're bending over backwards for the whale, you're not making sales calls. You're not building the second and third revenue stream. You're serving the thing that pays, which is exactly what a good operator is supposed to do, right up until the moment it becomes the reason the whole business is fragile.

That's the cruel part. Concentration isn't a punishment for being lazy. It's a reward for being good. You did great work, they gave you more, you did great work again, they gave you more still. Nobody makes a decision to become dependent. You just say yes to a good client fourteen times in a row and wake up somewhere you didn't choose.

Forget the revenue number for a second. Pull up your last twelve months and answer one question. What percentage of your revenue comes from your single largest client?

Under fifteen percent, you're fine. You've got a diversified book and you could lose anybody in it without flinching.

Fifteen to twenty-five percent is normal for a growing service business. Keep an eye on it and keep selling.

Twenty-five to forty percent, you're exposed. Losing them means a rough two quarters and probably a hard conversation with somebody on your team who has a mortgage.

Over forty percent, you're not running a business. You're running a department for somebody else's company, and they just haven't gotten around to telling you yet.

Ray was at sixty-one. That's not a client. That's a landlord.

Now run the same math on your top three combined. If your top three are more than sixty percent of revenue, one bad quarter in their industry takes you down with them. That's not a hypothetical I made up to scare you. That's what happened to half the agencies I knew in 2020, and it will happen again the next time something breaks, because something always breaks.

One more number while you're in there. What percentage of your revenue comes from clients who found you through a single channel? Referral concentration is the same disease wearing a nicer coat. If every good client you've ever had came from one guy who likes you, you've got one client with extra steps.

We didn't panic. Panic is what makes you take on three terrible clients at bad prices just to fill a hole, and then spend the following year regretting all three.

We did four things over ninety days.

First, he wrote down every unbilled favor he'd done for the big client in the last twelve months and priced it at his normal rate. It came to forty-one thousand dollars. He didn't send them an invoice. He just needed to see it, because until you see it, you keep telling yourself the relationship is worth the cost. Once it had a number attached, the relationship had a price tag, and the price tag turned out to be terrible.

Second, he built a pipeline that ran without him. Ray's business development had been entirely word of mouth plus one guy named Tony who was also his best foreman, which is a hell of a way to run a growth engine. We set up a simple system in Make.com that pulled new commercial permits in his county every morning, dropped them into a list, triggered a physical letter and a three-touch follow-up sequence, and put anybody who responded straight onto his calendar. Took a weekend to build. It's still running today and he hasn't touched it since June.

Third, he set a floor and a ceiling. No new client gets priced below the standard rate. And no existing client gets more than thirty percent of crew capacity. That second rule is the important one, because capacity is the real constraint in a service business, not revenue. When you cap capacity per client, you are structurally forced to go find more clients. The rule does the work your discipline won't.

Fourth, and this is the one nobody wants to do, he had the conversation. Not a threat. Not an ultimatum. He told the property management group in plain language that he was restructuring the company so no single account could take it down, that this was about his business and not about them, and that the winter contract was going back to standard pricing. Then he offered them a two-year term to lock the current rate as an alternative.

They took the two-year term.

Which is the part that makes me laugh every single time I tell it. He'd spent two years quietly terrified of a client who, the first time he gave them a straight answer, said sure, that's fine.

Big clients don't respect vendors who fold. They tolerate them. There's a real difference and you can hear it in how they talk to you on the phone.

That property manager was not sitting in his office hoping Ray would keep eating storm cleanup for free. He had a budget, a boss, and a headache he wanted handled by somebody who'd pick up. What he wanted was reliability. Ray had spent two years buying loyalty with discounts from a guy who was already loyal for completely different reasons.

You'd be surprised how often that's the case. The concessions you're making are almost never why they stay. They stay because switching vendors is a pain in the ass, because you answer the phone, and because you do good work. Everything else you're throwing in is a gift they never asked for and don't particularly value.

Go test it. Next time your biggest client asks for something out of scope, don't say no. Say sure, here's what that costs. Then watch. Most of the time they approve it without blinking, because it was in the budget the whole time. Occasionally they withdraw the request, which tells you it was never actually important. And once in a while they get annoyed, in which case congratulations, you just learned something critical about a relationship you were betting your company on, and you learned it while you still had time to do something.

You don't need ninety days to start this. You need about an hour and a spreadsheet.

That last one matters more than people expect. I've watched owners celebrate a record month while concentration quietly climbed past fifty percent. Revenue was the number on the wall, so revenue was the number that made them feel good, and meanwhile the actual health of the business was moving the wrong direction in a column nobody had bothered to track.

The other half of diversification is relationships you already have and stopped tending. Former clients. The referral partner who sent you two deals in 2024 and nothing since. The guy from the trade show who genuinely liked you. Those people are your backup plan and they go cold in about six months of silence. I use clay.earth to keep that from happening, because remembering to follow up with sixty people is not a character trait, it's a system.

About four months later, Ray called again. His largest client was down to thirty-four percent of revenue. Total revenue was up around eleven percent. Nothing dramatic happened in between. He just stopped bleeding free work and started filling the top of the funnel on purpose.

What he said was, I didn't realize how much of my head that client was renting.

That's the part that never makes it into the spreadsheet. The mental rent on a client who could end you. It shows up as checking email at eleven at night. As reading tone into a two-word reply. As making decisions about your entire company based on what one person might possibly think about them.

You can't scale from there. Not because the math doesn't work, but because you've stopped making decisions. You're managing a fear, and a fear will never tell you to raise your prices or turn down bad work or take the week off.

Fix the concentration and you get the business back.

You also get to sleep, which I'd argue is worth more than the eleven percent.

Talk Soon,

Dan

Dan Kaufman
Founder, Dead Simple Growth and Pinnacle Masters

P.S. If you want the one-page scoreboard I build with clients, the one that puts client concentration right next to revenue so you physically can't look at one without the other, just hit reply and send me the word DASHBOARD. I'll get it over to you.