Net Revenue Retention (NRR)
Net Revenue Retention (NRR) measures the percentage of starting customer revenue retained after one year — including expansion, contraction, and churn — the most important B2B SaaS health metric and primary driver of valuation multiples.
Why This Matters
NRR calculation: (starting ARR + expansion - contraction - churn) / starting ARR, measured at customer cohort level. NRR over 100% indicates net expansion (existing customers growing faster than churning); NRR over 120% indicates exceptional expansion economics; NRR under 90% indicates contraction problems requiring intervention. Top public B2B SaaS companies (Snowflake, Datadog, Cloudflare) achieve 130%+ NRR. NRR matters more than gross retention because expansion compounds across customer base — high NRR enables 'efficient growth' through existing base alongside new acquisition.
Frequently Asked Questions
Frequently Asked Questions
What's a healthy B2B SaaS NRR?
100% is baseline (replacement of churn through expansion). 110-120% indicates healthy expansion. 120%+ indicates exceptional expansion economics. Top public SaaS companies achieve 130-150% NRR.
Why does NRR drive SaaS valuations?
NRR over 100% means existing customer base alone produces revenue growth — 'compounding revenue.' Combined with new customer acquisition, high NRR companies grow faster with less customer acquisition investment. Valuation multiples directly correlate with NRR.