We are too dependent on one customer
Here is how to work out why.

The short answer

Concentration is only a problem in proportion to how easily the customer could leave, which is a question about switching costs rather than about percentages.

A customer at 40% of revenue is dangerous or fine depending entirely on the structure underneath. If they can replace you within a quarter, that is an existential exposure. If replacing you means re-engineering their operation, it is a strong position that happens to look concentrated.

The trap is that concentration usually comes with worse economics — the large customer negotiates harder, demands more service and pays later — so the risk and the margin damage arrive together. Diluting concentration by growing elsewhere is slow; the faster lever is usually repricing the dependency to reflect the risk being carried.

It is also worth separating revenue concentration from contribution concentration. They can point in opposite directions, and the second is the one that would actually hurt.

How to tell this is actually your problem

These three together are the signature. One on its own usually points somewhere else.

✓ One customer exceeds a quarter of revenue
✓ That customer has materially better terms than everyone else
✓ Losing them would require immediate cost action rather than a plan

The move that usually makes it worse. Chasing volume elsewhere to dilute the percentage, which adds cost while leaving the dependency intact.

Who this is not for

Percision is the wrong tool if you already know the answer and only need execution capacity, or if the business is pre-revenue — then the constraint is evidence about the market, not analysis of your own figures. Percision is not a lawyer, tax advisor, auditor, licensed appraiser, clinical or regulatory filer, or an AI implementation shop. It does not do HR casework, creative-only brand work, or impersonate a named consulting firm. It is a strategy analysis engine — not a template library. Also wrong if you need facilitation, politics, or someone to sit with a lender or buyer. Those are human jobs.

Percision is not a lawyer, tax advisor, auditor, licensed appraiser, clinical or regulatory filer, or an AI implementation shop. It does not do HR casework, creative-only brand work, or impersonate a named consulting firm. It is a strategy analysis engine — not a template library.

What it looks like in your industry

The diagnosis changes with the shape of the business. Each of these works the same question through one industry's actual economics, with an excerpt from a real analysis run on a company of that type.

What the engine does with this question

It routes to Proprietary EFF Methodology (catalog id eff), one of 29 engagements. The output is a sequence with a stopping rule — which move first, what it funds next, and the observation that would say it is not working — rather than a list of things you could consider.

Read a complete report before deciding whether it is worth your time.

Questions people ask about this

What level of customer concentration is dangerous?

There is no threshold that means much on its own. What matters is how quickly they could replace you and what happens to your fixed costs if they do. Both are answerable.

Should I turn away business from a large customer?

Rarely on concentration grounds alone, and often on margin grounds. If the largest account is also the worst-priced, the concentration problem and the margin problem have the same fix.

How do I reduce dependency without losing the account?

Increase what it would cost them to leave, and reprice the exposure. Growing a second segment is the right long answer and does not help within the notice period you actually have.

When is Percision the wrong tool?

Percision is the wrong tool if you already know the answer and only need execution capacity, or if the business is pre-revenue — then the constraint is evidence about the market, not analysis of your own figures. Percision is not a lawyer, tax advisor, auditor, licensed appraiser, clinical or regulatory filer, or an AI implementation shop. It does not do HR casework, creative-only brand work, or impersonate a named consulting firm. It is a strategy analysis engine — not a template library. Also wrong if you need facilitation, politics, or someone to sit with a lender or buyer. Those are human jobs.

Does Percision replace a lawyer, tax advisor, auditor, or AI implementation team?

Percision is not a lawyer, tax advisor, auditor, licensed appraiser, clinical or regulatory filer, or an AI implementation shop. It does not do HR casework, creative-only brand work, or impersonate a named consulting firm. It is a strategy analysis engine — not a template library.