Net Revenue Retention (NRR)
Net Revenue Retention measures the dollar revenue from a cohort of customers one year later relative to what they paid at the start, including upsell and expansion, net of churn and contraction. NRR ≥ 110% is the floor for top-quartile B2B SaaS; ≥ 120% signals a category-leader product. The trap: high reported NRR can mask low gross retention because expansion from a few large accounts compensates for losses elsewhere. PE diligence pulls cohort-level GRR (Gross Retention) to detect the disguise.
We have seen sellers report 105% NRR and feel safe; the buyer’s diligence team computes 78% GRR on the same cohort and the deal restructures around 70% earnout. The gap between NRR and GRR is the single richest forensic signal we extract during commercial diligence.
For an operator: track NRR weighted by cohort vintage, segmented by deal size and industry. The aggregate number is a vanity metric. The breakdown tells you which sales motion is profitable and which is borrowing future revenue.
Related terms
- CAC Payback — The number of months a SaaS firm needs to recover the fully-loaded sales-and-marketing cost of acquiring a customer. The leading indicator of capital efficiency.
- EBITDA — Earnings Before Interest, Taxes, Depreciation, and Amortization. The proxy for operating cash flow that PE buyers use to set valuation multiples.
- Rule of 40 — The heuristic that growth rate plus EBITDA margin should sum to at least 40% for a SaaS firm to merit premium valuation. The floor for institutional capital interest.
Where this gets applied
- GTM Execution — Pipeline coverage, top-down/bottom-up motion, AE/SE ratios, comp realignment, partner-channel structure.
- Unit Economics — CAC payback, NRR, gross margin by segment, cohort analysis, paid-on-bookings vs. paid-on-cash.