Serviceable available market

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Total Available Market (TAM), Serviceable (or Served) Available Market, and Target Market.

Serviceable addressable market (SAM) (or served available market) is the part of the total addressable market (TAM) that can actually be reached.[1]

The serviceable available market or served addressable market is more clearly defined as that market opportunity that exists within a firms 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:

See also[edit]


  1. ^ Steve Blank, Bob Dorf (2012-03-01). "The Startup Owner's Manual". K & S Ranch. ISBN 0-9849993-0-2.