Process knowledge that lives in people

In engineered products, specialty chemicals, custom fabrication and process equipment, the knowledge that makes the business work is often not written down. It sits with a small number of people who have been there for decades: the operator who knows how the line behaves with a difficult feedstock, the engineer who knows why a design choice was made, the service technician the difficult customers ask for by name.

A valuation issue, not an operational one

Owners tend to treat this as a succession question to be addressed eventually. Acquirers treat it as a valuation question to be addressed now.

A buyer underwriting the business is underwriting those individuals staying. If the knowledge cannot be demonstrated to exist independently of them, the response is structural: retention packages funded from the purchase price, a larger share of consideration deferred, an earnout tied to operating performance through the transition, or simply a lower headline number with the risk priced in at the outset.

All of those transfer value from seller to buyer, and all of them are avoidable.

What documentation actually means here

It does not mean an employee handbook. It means the specific technical content: process parameters and why they are set where they are, failure modes and their remedies, the design rationale behind product variants, customer-specific configurations and their history, and the informal rules operators apply that are not in any procedure.

The most practical route is usually to have a competent engineer shadow each key individual and write it down, then have someone else attempt the task from the written record and correct what is missing. This is slow, unglamorous work that nobody wants to fund, which is precisely why it is rarely done under time pressure.

The premium it converts to

Done in the two years before a process, it changes the proposition entirely. A business that can demonstrate its process is transferable, with documentation that has been tested by someone other than its author, is selling an asset rather than a group of people.

That is a different category of business to an acquirer, particularly to a financial buyer with no operating capability of its own, and it is one of the few preparatory investments that reliably returns more than it costs.