Tuesday, October 27, 2026

Confidence up a quarter, down the next, tariffs easing then tightening — waiting for certainty is its own decision, and usually the wrong one. Here's a simple way to keep deciding well when the ground keeps moving.

Ask most SME owners how much of their revenue comes from their single biggest customer, and you'll get a rough guess, usually followed by "but we're fine, they've been with us for years." That's precisely the sentence owners said about the customer who left.

US accounting standards (ASC 280-10-50-42) require public companies to separately disclose any customer that makes up 10% or more of revenue — not because 10% is inherently dangerous, but because regulators decided that's the threshold worth telling investors about. SME owners rarely have to disclose anything to anyone, which is exactly why customer concentration quietly becomes someone else's problem to notice — usually a bank, a buyer, or an owner's own cash flow, at the worst possible moment.

The Math Most Owners Never Actually Run

Run it once and it's uncomfortable in a way no survey needs to prove. A business with four roughly equal customers loses 25% of revenue the day one leaves. A business with one customer at 40% of revenue loses almost half overnight — not because the market turned, not because the team underperformed, but because one phone call happened. That's not pessimism. It's arithmetic every SME owner is running without realising it, every day they don't check the number.

Three Moves That Actually Reduce the Risk

  • Know the real number today. Calculate what percentage of the last twelve months' revenue your top one, three and five customers represent — not a guess, the actual figure.
  • Set a written cap for any single customer. Most advisers land somewhere between 15% and 25%, depending on how replaceable that revenue would be. Treat any new deal that would breach it as a conscious decision, not an accident.
  • If you're already over the cap, grow everyone else faster. The fix isn't firing the big customer — it's a genuine new-customer push, not just servicing the big account even better.

"I have grown my business 5x since working with Kevin. Everything Kevin told me to do was the complete opposite of what I had been doing. Working with Kevin has truly been a complete game changer."

— Richard, Chem Suppliers

Why Owners Who Know This Still Haven't Run the Number

The biggest customer is usually also the easiest revenue — the one that doesn't need chasing, the one where the relationship already exists. Deliberately spending time and money on smaller, harder customers to dilute dependence on the easy one feels like working against your own instincts. It is, which is exactly why most owners need someone outside the relationship to make the case for diversifying before the easy customer makes the decision for them.

Key Takeaways

  • Calculate your top one, three and five customers' real share of last year's revenue.
  • Set a written concentration cap, typically 15–25%, and treat breaches as a decision, not a drift.
  • Grow the rest of your customer base deliberately if you're already over the cap, rather than deepening the dependency.
  • Get an outside view — the easy customer is the hardest one to diversify away from on your own.

If you can't say your top customer's share of revenue to the nearest 5% right now, that's the first number we find together.

Thursday, September 17, 2026

Most SME growth plans have one lever: more new customers. Here's why customer lifetime value predicts real growth better, and how to start tracking it this week.

Thursday, September 17, 2026

Small businesses are being paid 9 days late on average, and 56% are sitting on $17,500 in unpaid invoices. Here's the four-step Collection Cadence that turns chasing payments into a system.

Thursday, September 17, 2026

Adding more isn't a strategy — it's a tax on your margin and your attention. Here's the three-step audit that tells you what to cut before you try to grow.

Thursday, September 17, 2026

Winning a new customer costs five to seven times more than keeping one. Here's why most SME marketing budgets still get that backwards — and the fix.

Thursday, September 17, 2026

Your champion loves the idea — and still can't get it approved alone. Here's the multi-threading framework that stops good B2B deals dying in silence.

Thursday, September 17, 2026

If your best salesperson or only bookkeeper vanished tomorrow, would the business survive? Here's the audit that finds your hidden risk points.

Thursday, September 17, 2026

Coaching only works if you say the thing you'd rather not. Here's why the polished update is quietly wasting your sessions — and how to fix it.

Thursday, September 17, 2026

More headcount isn't the same as more growth. Here's why the fastest-scaling SMEs hire fewer, more capable people — and how to test your own team.

Thursday, September 17, 2026

NFIB's newest data shows small business profit trends falling twice as fast as sales, even as owners raise prices. Here's the three-step test to find where your margin is actually leaking.

Thursday, September 17, 2026

Most growth strategies don't fail because the market changed — they fail because nobody tested the assumptions underneath them. Here's the four-question audit that catches the weak spot before it costs you a year.

Sunday, September 13, 2026

FMCG suppliers just got scored on 38 retailer-relationship competencies — and the results reveal a growth capability gap hiding behind operational excellence. Here's the two-bucket audit to fix it before your next category review.

Thursday, September 10, 2026

82% of small business owners are confident about growth — but 53% say a lack of customer demand is their biggest obstacle right now. Here's the framework to tell which one you're building.

Thursday, September 10, 2026

Export feels like the natural next step for a ranged FMCG brand — but it's a different business, not a bigger version of the same one. Here's the validation sequence that protects you.

Thursday, September 10, 2026

A certificate proves someone studied coaching — not that they've built or fixed a real business. Here's the vetting checklist that actually predicts results.

Thursday, September 10, 2026

Your calendar isn't a record of what you value — it's a record of what you haven't said no to. Run the audit that shows the real gap and how to close it.