AI Tech Stack · Market Landscape
Retrieval & Knowledge
A live map of the retrieval and knowledge layer, the vector, RAG and memory infrastructure behind grounded AI.
31
Companies
5
Sub-sectors
$2bn
Total capital
~$1bn
Venture funding
75%
US-based
The smallest and one of the earliest categories: just 31 companies, 75% still at Seed or Series A. RAG and retrieval infrastructure leads (10), but with Google, Microsoft and AWS all shipping native search and knowledge tooling, this is the layer most exposed to the hyperscalers absorbing it.
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.