Captain (YC Winter 2026)

TL;DR: Captain is a Y Combinator Winter 2026 startup Give AI agents accurate knowledge search that scales, currently active with a team of 2.

Give AI agents accurate knowledge search that scales

YC ID
30913
YC Batch
Winter 2026
Status
Active
Team size
2
Industry
B2B, Infrastructure
Tags
B2B, API, Data Engineering
YC profile
https://www.ycombinator.com/companies/captain

Last verified:

Captain delivers the most accurate file search engine built for AI agents. We’ll index data from the sources folks already use like S3, SharePoint, and Google Drive, and easily scale multimodal, petabyte-level content search. We’re the Snowflake for Unstructured Data. Captain tops the Open-RAG-Benchmark with over 20% higher accuracy than standard RAG pipelines. We achieve this through robust data processing techniques like embedding normalization across modalities, ensuring that representations cluster by semantic content rather than data type.

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Frequently asked questions

Is Captain a YC (Y Combinator) company?

Yes. Captain was funded by Y Combinator in the Winter 2026 batch. Give AI agents accurate knowledge search that scales

What does Captain do?

Captain delivers the most accurate file search engine built for AI agents. We’ll index data from the sources folks already use like S3, SharePoint, and Google Drive, and easily scale multimodal, petabyte-level content search. We’re the Snowflake for Unstructured Data. Captain tops the Open-RAG-Benchmark with over 20%…

What YC batch was Captain in?

Captain was part of Y Combinator's Winter 2026 batch.

How big is Captain?

Captain has a team of 2 people according to Y Combinator's directory.

Is Captain still active?

Captain is currently listed as Active with a team of 2 in Y Combinator's directory.

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