Market sizing & growth · Core
Installed base
Also called: installed customer base
ELI5
The products or customers already in use.
Used in conversation
“The installed base creates a service and upgrade opportunity.”
Definition
The number of units, systems or customers already deployed and active.
Here “Installed base” means: The number of units, systems or customers already deployed and active.
Pitch context
You will see “Installed base” 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
- Installed customer baseThe search label “installed customer base” can route to both entries.
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