Series A Signals: What GitHub Data Reveals About Growth-Stage Startups

Series A startups display distinct GitHub patterns that differentiate them from earlier stages. The hallmarks are infrastructure buildout (3+ new repositories in 30 days indicating platform development), contributor growth exceeding 50% (post-fundraise hiring), and increasing repository specialization (microservices, SDKs, internal tools). These patterns indicate a startup has moved from finding product-market fit to building the platform for scale - the exact inflection point Series A investors target.

References

[1] GitHub REST API - Repository Statistics: GitHub Docs