Series B
定义
Series B is the scaling round after Series A, typically $20M to $40M, funding expansion of a go-to-market machine that already works.
它在融资中如何出现
Series B diligence centers on efficiency: CAC payback, sales productivity, cohort economics, and whether growth persists as spend scales.
常见问题
What changes between Series A and B?
The question moves from “does the engine work?” to “does it scale efficiently?”; financial metrics dominate narrative almost completely.
What ARR is typical at Series B?
Commonly $5M to $15M ARR for software, with efficiency metrics mattering as much as the absolute number.