If you only get to show an investor one number beyond revenue, make it net revenue retention. It is the closest thing the software world has to a measure of whether a business compounds.
What it actually measures
Net revenue retention, or NRR, tracks how much revenue you keep and grow from existing customers over a year, before adding anyone new. Above 100% means your current customers spend more over time even after some churn. Below 100% means you are filling a leaking bucket.
Why investors fixate on it
Retention reflects whether the product is genuinely embedded, whether pricing has room to expand, and whether the business will still be here in five years. A company at 130% NRR grows even if it stops acquiring entirely. That is rare, and valuable.
- Under 100%. A real problem to explain. Investors will want to know why, and what changes it.
- 100% to 110%. Healthy and stable. Fine for many businesses.
- Above 120%. A compounding machine. This is where premium valuations live.
Growth tells you how fast you are running. Retention tells you whether the ground underneath you is solid.
How to present it honestly
Define your cohort and window clearly, keep the calculation consistent quarter to quarter, and do not cherry-pick a flattering segment. Investors who underwrite this metric for a living will spot a massaged number immediately, and it costs you more trust than a lower honest figure ever would. When your accounting is connected, the number is what it is, which is exactly the point.