Captain

Captain

Accurate knowledge search that scales

Winter 2026ActiveB2BInfrastructureDeveloper ToolsBig DataData EngineeringSan Francisco, CA, USA
Captain delivers the most accurate general-purpose retrieval engine for unstructured data. Connect file stores and effortlessly retrieve knowledge with much higher accuracy than RAG (Avg: 78% → 95% + citations).

Verdict

High Signal
Market Opportunity
Knowledge retrieval and enterprise search infrastructure is a massive and fast-growing B2B market as every enterprise scrambles to make internal data AI-queryable. ICP is reasonably clear (companies with large unstructured file stores needing accurate retrieval). API-first infrastructure positioning enables broad monetization via usage-based pricing.
Medium Signal
Founder Signal
Edgar Babajanyan (CTO): Purdue Network Engineering (Dean's List), Reality Interactive AI Software Engineer for 2.5 years — built production RAG for Confluence documentation, AI agents for customer service, and OCR models (directly what Captain does), Purdue NLP researcher (published paper on LLM annotation tools), Weaviate vector DB certified, Autonomous Robotics Club Head of SW Engineering (software used by Google/Amazon/Unitree). Direct production RAG engineering experience before founding. Lewis Polansky (CEO): Purdue Finance (Honors), self-taught full-stack engineer, founded CyberSpace cybersecurity club (4 years, grew to 3 locations, trained national CyberPatriot semifinalists), Congressional App Challenge winner recognized by House of Representatives, Eagle Scout. Applied to YC 3 times with 4 pivots — real grit and iteration. Not elite schools and no prior exits, but Edgar's production RAG background is directly domain-relevant.
Low Signal
Competition
This space is extremely crowded: LlamaIndex, LangChain, Cohere Embed, Pinecone, Weaviate, and dozens of RAG-focused startups all compete here. OpenAI and Anthropic are building retrieval natively into their products. The differentiation claim (higher accuracy) is meaningful if proven but not yet a durable moat — any well-resourced competitor can claim similar improvements.
Medium Signal
Product
Claims a specific accuracy improvement (78% → 95%) over standard RAG with citations, which is a concrete and testable claim. Website implies a live API product with file store connectors. However, no customer logos, revenue figures, live demo, or named testimonials are present in the data.
OverallB Tier

Captain has a better founding story than the empty website suggests. Edgar Babajanyan spent 2.5 years building production RAG systems at Reality Interactive before founding — he knows exactly what doesn't work about existing solutions. Lewis brings the CEO/business archetype: 4-year cybersecurity club founder, Congressional App Challenge winner, self-taught engineer. They applied to YC 3 times and pivoted 4 times to find the product. Garry Tan personally called Captain 'a step function increase in capability compared to out-of-box RAG pipelines' — a meaningful endorsement. The competition is brutal (LlamaIndex, LangChain, OpenAI native retrieval, Cohere) and the moat is thin, but the founders have real domain credibility and the 78% → 95% accuracy claim is specific and testable. Needs named enterprise customers to move up.

Active Founders

Edgar Babajanyan
Edgar Babajanyan
Co-founder and CTO

CTO @ Captain | AI Engineer and Researcher | Prev. Purdue

Lewis Polansky
Lewis Polansky
Founder

CEO @ Captain | The High Accuracy RAG API

Captain
Captain
TierB Tier
BatchWinter 2026
Team Size2
StatusActive
LocationSan Francisco, CA, USA
Last Updated3 days ago