What is institutional memory at a deal firm?
Institutional memory is what a firm collectively knows about its relationships and deals: who was shown what, why a buyer passed, what a sponsor promised, which processes went well and why. At most firms it lives in individual inboxes, notes, and heads, so it walks out the door with every departure and rotation.
The failure is invisible until it costs something: a new coverage banker re-pitches a deal the sponsor already passed on, a departed MD's relationships go dark, a question about a three-year-old process has no answer because the person who ran it left.
CRMs were supposed to be the fix, but they capture only what people stop to type, which is a thin, delayed slice of what actually happened. The richest memory, what was said on calls and in meetings, almost never makes it in.
Durable institutional memory has three properties: it is captured from the work itself rather than re-typed, every fact carries its source and date so it can be trusted later, and it is queryable, so the answer to what happened with this sponsor takes seconds instead of an archaeology project.