Definition
Estimating TAM/SAM/SOM to show opportunity.
Examples
Market sizing used bottom-up assumptions.
Origin
Modern business/startup term; used as practical shorthand in product, growth, and investing.
Use it in Nautis
Track market sizing alongside everything else in your startup.
Nautis brings planning, fundraising, finance, and operations into one AI-native workspace — so concepts like market sizing stop being spreadsheet trivia and start showing up where decisions get made.
