Blog post
One check pays your rent
Your biggest customer looks like your best one right up until the renewal letter lands. Everybody who works for you has already done that arithmetic.
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A crew lead named Marisol asked me something in the supply room that her owner had never heard anybody say out loud. If they lost the packing house, did her whole crew go, or just half of it.
Commercial cleaning company in Bakersfield, quarter past six on a Tuesday, night shift signing out keys at the window. She was counting liner boxes onto a cart while she asked. Sixteen people under her, five nights a week, the fruit packing plant out on the east side.
I asked who had told her the account was in trouble. Nobody had. The contract was up in a few months, it had gone out to bid the last two rounds, and her crew had worked out the rest between themselves in the parking lot.
Upstairs, the owner had spent the afternoon telling me what a solid year this was shaping up to be. He knew the number. He had never said it to anyone in the building.
Thirty-three cents of every dollar
That plant billed about $620,000 the year before, inside a company that billed $1.9 million. A third of the book, one signature, one facilities manager who gets replaced every couple of years.
The same shape showed up three more times. Nearly all of the work was nightly janitorial. Nearly all of it sat in food processing and ag buildings within a twenty minute drive of the yard. And every account signed in four years traced back to the same two property managers.
None of that hurts in an ordinary month. Billing lands, crews are covered, the phone rings about the things it always rings about. Concentration costs nothing at all until the week it costs everything, which is how it survives inside good companies for a decade.
The signs are dull ones, and you can check most of them tonight:
You can say your largest customer's share of revenue without looking it up, and you have never said it in front of your managers.
Take away one service, one type of building, or one end of the county, and most of the company goes with it.
Ask where the last ten customers came from. The answer is one person, one website, or one list.
Signed work does not turn into money when you assumed it would, and some of it never starts at all.
There is work in your backlog you would not bid again at that price, and work where nobody can say exactly what is included.
Two months running look nothing alike, and the whole difference is one project that happened to land in one of them.
Strip the project work out and what repeats on its own will not cover rent, insurance, the trucks, and the people who never touch a job.
Nobody around here pays for that
I have never once had this described to me as a concentration problem. It arrives as a fact about the territory. Bakersfield is a price town. The buildings out here are ag and oil, they all bid it by the hour, and nobody in this county pays for a day porter or a floor program or anything with a specification attached to it. Once a market has been described that way, the looking stops.
So the effort goes somewhere else. It goes into defending the account he already has. The best supervisor moves onto that building, the newest auto-scrubber goes out there, and at renewal he shaves the rate to be sure. When he finally hires a salesman, he points him at the next packing plant, because that is the only kind of building his company knows how to walk and price.
A market read like that is usually assembled out of a few old conversations. This owner had quoted day porter work three times in his life. All three went to the same property manager, all three inside eighteen months, and from that he had drawn a conclusion about an entire county on a sample of one buyer having a bad year.
The part he owned took longer to get to. The concentration was built one reasonable yes at a time. Every few months that plant asked for a little more, and every time he agreed, he moved something good off the rest of the book to cover it. Nobody sits down and chooses a company that leans on one customer. You agree to it, about forty times, each time for a sound reason.
Adding customers is the obvious answer and it goes wrong quietly. Same source, same segment, same rate, which moves the exposure off one buyer and onto one channel. Revenue is the wrong ruler for it as well. An account at a fifth of your revenue and two fifths of your gross profit holds more of your company than its percentage admits. Backlog runs the same trick. Work that is verbal, vague, or priced badly sits up on the board looking like protection.
Two dollars and seventy cents an hour
Start with the part that has a price on it. That plant takes roughly 2,340 cleaning hours a month, call it 28,080 across a year. He bills it at $22.10 an hour. Everybody else pays $24.80. That gap runs about $75,800 a year, handed every year to the one customer he already cannot afford to lose.
The larger cost has no invoice. A company in this shape grows exactly as fast as one buyer's facilities budget lets it and no faster, because the demand side of the business belongs to somebody else. He can hire, buy equipment, run tight routes. All of it sits under a ceiling set by one renewal signature he does not hold the pen for.
If that signature goes elsewhere he has eighteen people he cannot redeploy, two supervisors, a lease and an insurance bill that do not shrink, and a book that just lost a third of its top line. Companies like his usually survive it. They spend the two years after at breakeven doing so.
Pick the ceiling and say it out loud
One number, this week. The rest follows it.
Pull the last twelve months of invoicing by customer out of whatever you bill from. Sort it biggest to smallest. Add one column dividing each customer into the total. Twenty minutes in a spreadsheet, less if your software exports cleanly. Most owners land within five points on their top account and are badly wrong about numbers two through six.
Then set the ceiling. No single customer bills more than a quarter of what we bill. Twenty-five percent is where I would start a company that carries a lease, trucks and salaried supervisors. Take it down to twenty if you have debt with a covenant on it, or if your fixed costs run above a third of revenue. Pick the number yourself, and pick it once.
Now tell people, in the meeting you already hold, in one sentence. The person who sells, the person who schedules and whoever prices the work all hear the ceiling and the current numbers in the same breath, including the account sitting over the line. Saying that part out loud feels like an admission. Marisol already knew it in the supply room, and so did the sixteen people on her crew.
Yours will already be breached, so the number works as a direction rather than a verdict. Two rules hang off it. The account over the line gets no additional scope at a discounted rate, which means renewals go to the standard rate or the scope comes down. And every new selling hour goes toward a type of customer you do not already depend on, until the percentage falls because everything else grew.
Say the distance out loud as well. Moving $620,000 from a third of the book down to a quarter, without losing a dollar of it, means the rest has to travel from $1.28 million to about $1.86 million. Roughly $580,000 of new work. That is a two year job, and the owners who skip that sentence get discouraged around month four and quit.
One last piece. Put the percentage column on the monthly billing report so it gets read twelve times a year without anybody deciding to read it. When that is running, count the same way on lead source and on service line. Same arithmetic, same ceiling, same conversation.
Six weeks on
What you notice is what stops. The renewal letter stops rearranging your quarter. You stop pulling your best supervisor onto that building every time somebody there sounds unhappy. Your salesman stops bringing you the fourth packing plant in a row, because he has been told plainly that it will not count for much. The parking lot talk goes quiet, since a thing said out loud in a meeting has stopped being a rumor.
Your first account in a new segment will be smaller than the plant and worth more per hour, and it will irritate everybody for a month. Medical offices are fussier than a packing line. They also pay in twenty days.
Owners hold the big account close because letting it get proportionally smaller feels like giving something away. It is the one relationship nobody has to sell again, and that is what makes it so expensive. Almost nobody gets out of this by firing a customer. They get out by writing a number down and spending two dull years growing everything else up toward it. Marisol had the diagnosis before I did. She could see it from the supply room.
Customer Concentration and Revenue Quality is seven statements in the Business Check-in, and this article does justice to about three of them. If you want the rest of what is quietly setting your ceiling, the check-in is free and takes about ten minutes.
