Gross revenue retention (GRR)

Gross revenue retention measures how much recurring revenue a fixed group of existing customers still generates after subtracting contraction and churn, with no credit given for upsells: (Starting ARR - Contraction - Churn) / Starting ARR. Because expansion revenue is deliberately left out, GRR is capped at 100%; it can only stay flat or fall, never rise.

This is the key difference from net revenue retention, which adds expansion back in and can exceed 100%. GRR isolates a narrower question: independent of any growth within accounts, how sticky is the customer base itself? A company can have strong GRR but weak NRR if it retains customers reliably but fails to grow their spend, or the reverse, where heavy churn is masked by expansion revenue from the accounts that remain.

GRR matters because it is a cleaner read on product-market fit and customer satisfaction than NRR, which can hide a churn problem behind strong upsells from a shrinking base. Investors often want both figures together for that reason. The common pitfall is treating GRR and expansion revenue-driven NRR as interchangeable health signals; a business with high subscriber churn but even higher expansion can look healthy on NRR alone while its underlying retention is deteriorating.