AI Tech Stack · Market Landscape

Observability, Evaluation & Testing

A live map of the companies making AI systems measurable, the observability, evaluation and testing layer.

The newest money in the stack: 74% of companies are at Seed or Series A on a median round of just $5m, and total venture funding is only $1.9bn. Evaluating and testing models (38) is outpacing runtime observability (30), as the field races to answer a question that barely existed two years ago: how do you know an AI system is working?

The map is one large image. On a small screen the list below is easier to read.

Companies shown by their primary sub-sector. Funding figures are venture rounds only, sourced from Crunchbase; acquired companies are marked and excluded from the aggregate stats. Logos via logo.dev.