How we actually value a software company.

Most valuation writing is either a formula with no judgement in it or judgement with no arithmetic. This is what we do: where the number starts, what moves it, and the four things that change a price after we've sent it.

A valuation is not a fact about your company. It's a statement about what a specific buyer can do with it, and every buyer's number is different for structural reasons rather than personal ones.

A strategic acquirer values you at what you're worth inside their business, which is why they can pay more than anyone. A private equity fund values you at what they can sell you for in four years, with debt lifting the return. We value you at what the business will generate while we own it, which is forever.

That last framing has a consequence founders don't always expect. Because we're not planning a resale, we don't need a story about multiple expansion. We need the company to be durable. Durability is mostly retention, and retention is why our number moves more on churn than on growth.

The starting point is a revenue multiple, because in software under $10M in ARR, revenue is the least manipulable number available and the easiest to verify from a billing export. Everything after that is adjustment, and every adjustment we make gets written down in the letter with a reason attached.

Linear growth over exponential. Sustainable over unsustainable. Calm over urgent. Those aren't slogans, they're the underwriting.

Run your own numbers

The same arithmetic, five sliders, no email required.

Open the calculator

The published ranges

Multiples by ARR band, growth and retention.

See the table

Where a number comes from.

Start With Revenue

Contracted recurring revenue over the last twelve months, taken from the billing system. Not bookings, not the plan, not annualized last month.

Adjust For Durability

Retention first, then gross margin, then customer tenure. This is where most of the movement happens, and it's the part we spend the most time on.

Adjust For Risk

Concentration, founder dependency, technical debt we'd have to pay down, and contract terms that limit what an owner can do.

Write It Down

The range goes out with the reasoning attached, so you can argue with the logic rather than the number. If we're wrong about your churn, tell us.

What changes a price after we've sent it.

Rarely, and only for these four. A buyer whose number routinely drops during diligence is running a different process from the one they described, and past sellers will tell you if you ask.

The numbers weren't the numbers

Revenue in the data room that doesn't match the bank statements. Not usually dishonesty, usually a definition of ARR that included things it shouldn't. It still changes the price, because the price was built on the other figure.

A material contract we hadn't seen

An exclusivity clause, a change-of-control right, or a customer who can leave on thirty days' notice. This changes what's being bought, so it changes what it's worth.

Concentration we couldn't see from the summary

The revenue export shows one customer at 40% that the summary described as a healthy enterprise base. Not fatal, and it does move the number.

Something happened

A large customer churns during diligence, or a key engineer resigns. Rare, real, and we'd tell you exactly what changed and by how much rather than quietly re-cutting the offer.

Run it on your own numbers.

The method above is only useful if you can point it at your company. These four do that, and they all show their working rather than returning a number you have to take on faith.

A range is not an offer.

Every tool on this site returns an estimate built from public comparables and the inputs you gave it. It is a way to check whether a number you have been quoted is sane, not a price anyone has committed to. The only prices that exist are written ones, and ours arrives with the maths attached.

Questions on the method.

Why revenue rather than profit?

Because most software companies between $2M and $10M in ARR aren't run for accounting profit, and the profit figure they do report is highly sensitive to how the founder pays themselves. Revenue is verifiable from a billing export in an afternoon.