TL;DR: Net revenue retention (NRR) measures how much recurring revenue a company keeps and grows from its existing customers over a period, including upgrades and expansion, after accounting for churn and contraction. An NRR above 100% means the existing base grows in value even without new customers.
NRR tracks the change in recurring revenue from a fixed set of existing customers over a period, usually a year. It starts with the revenue those customers generated, adds expansion (upgrades, additional seats, cross-sells), and subtracts contraction and churn. The result, expressed as a percentage, shows whether the existing customer base is growing or shrinking in value on its own. NRR does not include any revenue from new customers added in a measurement period.
An NRR above 100% is a powerful signal: the company would grow revenue from its current customers even if it added no new ones. Recurring-revenue businesses with NRR of 120% or more are considered to have exceptionally strong expansion dynamics.
NRR captures retention and expansion in one number, which makes it one of the clearest indicators of revenue durability and product value. For a venture debt provider, high NRR points to a predictable, compounding revenue base that strongly supports the ability to service and repay a facility. It is among the metrics that best distinguish durable recurring revenue from revenue that requires constant replacement.
What is the difference between gross and net retention? Gross retention counts only revenue kept, capped at 100%. Net retention includes expansion, so it can exceed 100% when existing customers grow.
What is a strong NRR? Above 100% is good; 110% to 130% is considered strong for recurring-revenue businesses, though benchmarks vary by segment.
Related terms: Churn Rate · Annual Recurring Revenue · Monthly Recurring Revenue · Unit Economics
