Definition
Selling higher-tier features or more capacity to existing customers.
Examples
Customer success ran an upsell campaign to Pro.
Origin
Modern business/startup term; used as practical shorthand in product, growth, and investing.
Use it in Nautis
Track upsell alongside everything else in your startup.
Nautis brings planning, fundraising, finance, and operations into one AI-native workspace — so concepts like upsell stop being spreadsheet trivia and start showing up where decisions get made.