The change
A middle-market software business growing 40% a year used to clear comfortably above one growing 15%, and the gap was wide enough that sellers optimised for the growth number in the twelve months before a process. Buyers now discount growth that arrives with a rising cost of acquisition, and they pay up for revenue that renews without effort.
This is not a change in taste. It follows from what a buyer is actually underwriting.
What a buyer is buying
An acquirer is not buying this year's revenue. They are buying the cash the business will produce under their ownership, discounted back. Two inputs decide that: how much of today's revenue survives, and what it costs to add more.
Growth tells you about the second. Retention tells you about the first. When capital was cheap, the second dominated because a buyer could fund years of acquisition spend against a distant payoff. When capital is not cheap, the first dominates, because revenue that renews on its own is the only part of the model that does not need funding.
That is the whole of it. The market did not become more conservative. The discount rate moved, and the discount rate weights retention more heavily than growth.
What this looks like in a process
Two vertical SaaS businesses, both at $30M revenue.
The first grows 35%, has net revenue retention of 94%, and spends heavily to replace what it loses. Gross retention is in the low eighties. Its growth is real, but a meaningful share of the sales effort each year goes to standing still.
The second grows 14% with net revenue retention of 118%. Existing customers expand without new sales cost. Growth is slower, but almost all of it compounds.
Within the range vertical B2B SaaS trades at, most buyers will place the second business higher, and several will not bid on the first at all. Not because 14% is impressive, but because the second business needs less money to stay the same size and its forecast requires fewer assumptions to believe.
The metric that carries the most weight
Net revenue retention has become the strongest single predictor of the multiple a software asset achieves in this size band. The spread it explains is wider than sector, wider than growth rate, and wider than gross margin.
It is also the hardest number to manufacture in the six months before a sale, which is exactly why buyers trust it. A seller can flatter growth by pulling deals forward, discounting, or booking multi-year contracts aggressively. Retention is measured on cohorts that were sold years ago. There is nothing to pull forward.
What this means if you are preparing
If retention sits below 100%, that is the project. Not the pitch deck, not the market-sizing slide.
Find the cohorts that are shrinking. Establish whether the cause is price, product or service, because the remedy differs and the wrong one wastes a quarter. Fix the largest cause and let two quarters of data accumulate. A retention curve that has visibly turned is worth more in a process than a growth number that has not.
Customer concentration works on the same logic. A business where one customer is 35% of revenue is not priced as a software business. It is priced as a contract with software attached, because the buyer is underwriting a renewal decision by one person rather than a pattern across hundreds.
Where the old logic still holds
Growth has not stopped mattering. It still moves the number, and at the top of the range it moves it a lot. A business growing above 30% with retention above 110% is scarce, and scarce assets clear above the typical range for their sector.
The change is that growth alone no longer carries an asset. It has to arrive alongside evidence that the revenue base is durable. Where it does not, buyers now model the acquisition cost explicitly and price accordingly, and they are willing to walk.
The practical conclusion
Sellers who read this as bad news have usually been optimising the wrong metric. Retention is cheaper to improve than growth, it improves the business whether or not you sell, and unlike a growth spurt it is still there in eighteen months.
The seller who spends two quarters fixing renewals and then goes to market almost always does better than the one who goes now with a good growth number and a leaking base. The second seller finds that out during diligence, when there is far less room to do anything about it.
Divestitures.com Research · Published for orientation, not as advice on a specific transaction. Any figure cited is orientation, not a valuation. See market notes.