Business Strategy
SAM (Serviceable Addressable Market)
The portion of the Total Addressable Market (TAM) that a company can realistically serve given its current product, distribution, and geographic constraints. The market actually reachable with your offering.
Biological Context
SAM parallels the accessible niche space—the subset of potential resources an organism can actually exploit given its adaptations and location. A predator's SAM is limited by hunting range, prey detection ability, and physical capabilities.
Business Application
SAM provides a more realistic market estimate than TAM. Calculate by excluding market segments you can't serve: wrong geography, wrong customer size, incompatible use cases.