TAM model

Use three scenarios rather than one falsely precise number.

1. Low: verified eligible accounts after known exclusions.
2. Base: verified count adjusted for measured source coverage and duplication.
3. High: base plus populations hidden by unavailable ICP filters or source caps.

For each scenario calculate accounts, annual contract value, revenue TAM, buyers per account, and contact target. Use median annualized closed-won value from the closest segment when at least 20 comparable deals exist. With fewer than 20, report the sample size and sensitivity at minus and plus 25% ACV.

Coverage equals verified in-TAM CRM accounts divided by the scenario’s eligible accounts. Role coverage equals filled required buying-role slots divided by total required slots. Report both.