Net Revenue Retention (NRR)

The percentage of customers (measured by count, not revenue) that remain active over a given period, regardless of changes in their contract value. Logo retention — also called customer retention rate or gross retention by customer count — isolates the frequency of customer loss from revenue expansion or contraction and is a key indicator of product-market fit and customer satisfaction.

The total predictable revenue a subscription business earns each month, normalised to exclude one-time charges. MRR is tracked as new MRR, expansion MRR, contraction MRR, and churned MRR to understand the drivers of revenue movement.

A method of tracking the behaviour of groups of customers (cohorts) who share a common characteristic — typically their acquisition date — over time. Cohort retention analysis reveals whether product improvements are genuinely improving customer retention by isolating the performance of each intake group, and is essential for forecasting lifetime value and revenue trajectory in subscription businesses.

The annualised value of recurring subscription revenue. ARR is the primary top-line metric for SaaS and subscription businesses, providing a normalised view of predictable revenue that strips out one-time fees and variable charges.

An assessment of the sustainability, predictability, and growth trajectory of a company's revenue streams, examining factors such as the proportion of recurring versus one-time revenue, customer concentration, contract duration and renewal rates, pricing power, and the distinction between organic and acquisition-driven growth. Revenue quality analysis is a core component of financial due diligence in M&A transactions and directly impacts the selection of appropriate valuation multiples.

Total revenue divided by the number of employees, providing a high-level measure of workforce productivity and operational efficiency. Revenue per employee varies significantly by industry and business model, and is influenced by the level of automation and intangible asset investment.

The set of key performance indicators specifically designed to measure the health, growth, and unit economics of Software-as-a-Service businesses. Core SaaS metrics include annual recurring revenue (ARR), monthly recurring revenue (MRR), customer acquisition cost (CAC), lifetime value (LTV), churn rate, net revenue retention (NRR), and the Rule of 40.

Sequential rounds of venture capital financing that follow the seed stage. Series A typically funds scaling after product-market fit; Series B accelerates growth and market expansion; Series C and beyond fund further scaling, internationalisation, or pre-IPO preparation.

SaaS Intangible Assets: ARR, Churn, and Customer Value

SaaS businesses generate value through intangible assets that compound over time — customer relationships measured by ARR and retention, technology platforms that scale without proportional cost, and data assets that improve with usage. Understanding the intangible asset composition of a SaaS business changes how you value it.

What is Net Revenue Retention (NRR)?

NRR measures the revenue retained from a cohort of customers plus expansion revenue (upsells, cross-sells) minus churn, expressing it as a percentage of starting revenue.

What is customer relationship value and how is it measured?

Customer relationship value is the profit generated by customer relationships over their lifetime. It's measured via LTV (lifetime value) and is often the largest intangible asset for recurring revenue businesses.

How is the Rule of 40 calculated and when does it apply?

The Rule of 40 states that a healthy SaaS company's revenue growth rate plus profit margin should exceed 40% — it applies primarily to SaaS companies at scale and is used by investors to assess growth-profitability balance.