Metrics & Performance
Last updated
Quick Answer
The percentage of revenue retained from existing customers year-over-year, including upsells and expansions. NRR above 100% means existing customers are growing.
Net Revenue Retention
NRR = (Starting MRR + Expansion - Contraction - Churn) / Starting MRR x 100%
Where
Net Revenue Retention (NRR), also called Net Dollar Retention (NDR), is the gold standard metric for SaaS business quality. It measures how much revenue you retain from your existing customer base over 12 months, including expansions (upsells, seat additions) and losses (churn, downgrades). NRR formula: (Starting MRR + Expansion MRR - Churned MRR - Contraction MRR) / Starting MRR. An NRR of 100% means you're replacing all churned revenue with expansions. Above 100% means existing customers are spending more — your business grows even with zero new customer acquisition. Best-in-class SaaS companies (Snowflake, Datadog, Twilio at their peaks) have achieved NRR of 130-160%. VCs strongly prefer companies with NRR above 120% — it signals product stickiness and organic growth potential.
In Practice
TechFlow starts 2023 with $100K MRR from existing customers. During the year, these customers generate $25K in upsells and expansions, but $10K contract reductions and $5K in churn. Their NRR calculation: ($100K + $25K - $10K - $5K) / $100K × 100% = 110%. This means their existing customer base grew 10% without acquiring any new customers, demonstrating strong product-market fit and expansion potential.
Why It Matters
NRR above 100% indicates that existing customers are expanding their usage, reducing dependence on new customer acquisition for growth. This metric directly correlates with company valuation—top-tier SaaS companies maintain NRR above 120%. Poor NRR signals product-market fit issues, competitive pressure, or customer success problems that will eventually impact overall growth and fundraising ability.
VC Beast Take
The obsession with 120%+ NRR has created perverse incentives where companies optimize for expansion at the expense of new logo acquisition. We're seeing startups with impressive NRR but anemic new customer growth hit walls when their existing base saturates. The best companies balance both—they expand existing accounts while maintaining healthy new customer velocity. NRR without context is just vanity metric masturbation.
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Net Revenue Retention (NRR), also called Net Dollar Retention (NDR), is the gold standard metric for SaaS business quality. It measures how much revenue you retain from your existing customer base over 12 months, including expansions (upsells, seat additions) and losses (churn, downgrades).
Understanding Net Revenue Retention (NRR) is critical for founders navigating the fundraising process. It directly impacts deal terms, valuation, and the relationship between founders and investors.
Net Revenue Retention (NRR) falls under the metrics category in venture capital. This area covers concepts related to the quantitative measures used to evaluate fund and company performance.
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