Serviceable available market

Serviceable addressable market (SAM) (or served available market) is the part of the total addressable market (TAM) that can actually be reached.

The serviceable available market or served addressable market is more clearly defined as that market opportunity that exists within a firm's existing core competencies and/or past performance. The biggest consideration when calculating SAM is that a firm most likely can only service markets that are core or directly adjacent to its current customer base. As examples:

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