Serviceable available market
Also called: SAM, serviceable addressable market
ELI5
The part of the total market the company can actually serve.
Used in conversation
“The SAM excludes markets requiring unavailable licences.”
Definition
The portion of TAM that the company can serve with its product, geography, channels and constraints.
Here “Serviceable available market” means: The portion of TAM that the company can serve with its product, geography, channels and constraints.
Pitch context
You will see “Serviceable available market” in strategy decks, market analyses, business plans and planning workshops when the discussion reaches market sizing & growth.
Why it matters: It helps a reader interpret market sizing & growth without confusing the measure, decision, role or evidence being discussed.
Connected terms
- Total addressable marketTAM is the broad total theoretical market; SAM narrows it to the portion the offer and business can actually serve.
- Serviceable obtainable marketSAM is the serviceable market; SOM is the realistic share that may be obtainable within stated constraints.
Sources & evidence · 5
Supporting source families. This entry is an editorial synthesis rather than a quotation from one canonical glossary.
- Strategyzer — Business Model Canvas resourcesSupporting source family · practitioner · checked 2026-08-16
- Strategyzer — Value Proposition Canvas resourcesSupporting source family · practitioner · checked 2026-08-16
- LEANSTACK — Lean CanvasSupporting source family · practitioner · checked 2026-08-16
- U.S. Department of Justice Antitrust Division — Herfindahl-Hirschman IndexSupporting source family · primary · checked 2026-08-16
- U.S. Census Bureau — Business and economy dataSupporting source family · primary · checked 2026-08-16