Metrics & Performance
Net Revenue Retention
The percentage of recurring revenue retained from existing customers over a period, including expansion and contraction.
Net Revenue Retention
NRR = (Starting MRR + Expansion - Contraction - Churn) / Starting MRR x 100%
Where
- Starting MRR
- = MRR from existing customers at period start
- Expansion
- = MRR gained from upgrades and cross-sells
- Contraction
- = MRR lost from downgrades
- Churn
- = MRR lost from cancellations
Net Revenue Retention (NRR) measures how much revenue a company retains and expands from its existing customer base, accounting for upgrades, downgrades, and churn. NRR above 100% means existing customers are spending more over time (expansion exceeds churn). Top SaaS companies achieve NRR of 120-140%+. It's one of the most scrutinized metrics in SaaS investing.
In Practice
A SaaS company started the year with $10M in ARR from existing customers. After $2M in expansion, $500K in contraction, and $1M in churn, NRR = ($10M + $2M - $500K - $1M) / $10M = 105%.
Why It Matters
NRR above 100% means the company grows even without acquiring new customers. It's a powerful indicator of product-market fit and the most efficient form of revenue growth.
Related Concepts
Further Reading
Follow-On Strategy for Angel Investors: When to Double Down
How to think about follow-on investments in your angel portfolio — pro-rata rights, signaling risks, reserve allocation, metrics to evaluate, and when it's smarter to walk away.
What Happens to Your Stock Options If Your Startup Gets Acquired
Acquisitions are where startup equity either pays off or evaporates. Here's how acceleration clauses, liquidation preferences, and deal structure determine whether employees see real money.
When Should a Startup Raise Venture Capital?
Not every startup should raise VC. The timing, market signals, and traction benchmarks that indicate you're ready — plus the honest case for when bootstrapping is the smarter path.
How to Build a Financial Model for Your Startup
A step-by-step guide to building a startup financial model that impresses investors, drives decision-making, and helps you forecast growth, burn rate, and runway.
The VC Due Diligence Process: What to Expect
A founder's complete guide to the venture capital due diligence process — what investors examine, how long it takes, common red flags, and how to prepare your startup for scrutiny.
Series A Funding: What It Is and How to Raise It
Series A is where startups prove they can scale. Here's what investors expect, what metrics matter, and how to run a successful Series A process.
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