Thursday, October 29, 2026

36% of NZ SMEs use AI, but the smallest firms trail by 34 points. Here is a four-question test for choosing your first AI job, and a 30-day plan.

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.

Monday, October 12, 2026

EOS or Scaling Up? A fair, source-linked comparison for US owners, a five-point checklist to choose, and the growth questions neither operating system answers.

Monday, October 12, 2026

The seven concerns SME owners raise most often in coaching, why each one happens, and what actually helps.

Monday, October 12, 2026

Growth rarely needs you to do more. It needs you to stop five habits that quietly hold your business back.

Monday, October 12, 2026

Seven low-cost ways to lift sales this week, starting with the customers and quotes already in your business.

Monday, October 12, 2026

The 4 real reasons marketing fails for SME owners, and the practical, low-cost fix for each one.

Monday, October 12, 2026

New research shows 39% of small business owners blame admin, not the market, for stalling their growth. Here is how to find the real constraint before you spend another dollar fixing the wrong one.

Monday, October 12, 2026

Only 20-30% of businesses for sale actually sell, often because they can't run without their owner. Here's how to design yours so it can.

Monday, October 12, 2026

Writing your goals down is linked to real gains in achieving them. Here's the Vivid Vision exercise that turns a fuzzy dream into a measurable plan.

Monday, October 12, 2026

Owners using AI with purpose save 6 to 10 hours a week. Here's the simple audit that finds your first three tasks to hand over.

Monday, October 12, 2026

97% of buyers read reviews, but trust in them is falling. Here's how to build the review ask into your sales process, not just your marketing calendar.

Monday, October 12, 2026

64% of marketers can't tell competing brands apart. Here's the one-sentence positioning formula that makes sure your customers always can.

Monday, October 12, 2026

Most SME owners already know their real edge isn't price. Here's why benchmarking competitors kills that edge, and how first-principles thinking builds a strategy around it instead.

Sunday, October 11, 2026

Coach, consultant, mentor or advisor? How the four roles differ, which one suits an established NZ business, and the questions to ask before you pay.

Sunday, October 11, 2026

Gallup's 2026 data shows global employee engagement fell to 20 percent, even in the best-performing regions. Here's the three-question check SME owners can run this week to find out where their own team really stands.