Series B

Startups raise money in labelled rounds. A seed round is the earliest, then Series A, Series B, Series C and so on, each usually larger and at a higher valuation as the company grows. A Series B means a firm has moved past the earliest stage and is scaling.

The label is a quick shorthand for maturity. When AI news mentions a Series B, it signals a company past the experimental phase, with investors betting on real growth.