All the funding deals in the AI knowledge and search market
Last updated: 13 July 2026
In our updated market reports, you will find everything you need
The AI knowledge and search market helps people and software find useful answers across websites, company data, documents, and research papers.
We conducted deep research and collected 43 funding deals in the AI knowledge and search market from Q1 2024 to Q2 2026.
We refresh this page very often to add new AI knowledge and search funding deals.
Insights
- The 43 AI knowledge and search funding deals raised about $3.93 billion in total. A small number of very large rounds produced most of this amount.
- Funding reached about $2.19 billion in 2024. This represented more than half of all capital identified in the AI knowledge and search market.
- AlphaSense, Perplexity AI, Glean, and Exa received several of the largest rounds. These companies show strong investor interest in search products with clear enterprise or web use cases.
- Perplexity AI completed five listed rounds between 2024 and 2025. The five Perplexity AI deals represent about $1.24 billion of funding.
- Glean raised about $610 million across three rounds. This funding highlights strong demand for secure enterprise search across internal company applications and data.
- Exa moved from a $22 million round in 2024 to $85 million in 2025 and $250 million in 2026. This growth shows rising demand for search infrastructure built for AI agents.
- Document intelligence became an important part of the AI knowledge and search market. Reducto, Extend, Unstructured, Nanonets, Upstage, and Mary Technology all raised funding.
- Scientific research tools also attracted investors. Consensus, Elicit, and AnswerThis focus on helping users find, review, and understand evidence from research papers.
- Funding activity increasingly shifted toward infrastructure for AI agents in 2025 and 2026. Exa, Tavily, Firecrawl, Nimble, and Parallel Web Systems all provide web retrieval capabilities.
- The eight deals identified in the first half of 2026 raised about $495.6 million. Exa and Parallel Web Systems accounted for $350 million of this amount.
Summary table of the funding deals for the AI knowledge and search market since 2024
We define the AI knowledge and search market as AI systems that retrieve, organize, summarize, and answer questions from information sources.
It includes Enterprise Search, AI Knowledge Bases, Retrieval Augmented Generation, Document Intelligence, Research Assistants, and Semantic Search APIs.
It excludes broader adjacent markets unless the product is built specifically for this use case.
We focused exclusively on pure players, defined as companies with at least 70–80% of their business directly tied to the AI knowledge and search market.
Our analysis has been done at a global level with a minimum funding threshold of $300k.
If you want a longer-term view, we also have a study of how funding activity in the AI knowledge and search market has changed over the years.
| Name | What they do | Amount in $ | Quarter | Source(s) |
|---|---|---|---|---|
| Exa | Provides web search and retrieval APIs designed for AI systems and agents. | $250.0M | Q2 2026 | Exa Blog |
| Parallel Web Systems | Provides web search and retrieval infrastructure for AI agents. | $100.0M | Q2 2026 | Parallel Blog |
| Dust | Connects enterprise AI assistants with company knowledge and internal data. | $40.0M | Q2 2026 | Dust Blog |
| Qdrant | Provides an open-source vector database for semantic search and RAG applications. | $50.0M | Q1 2026 | Qdrant Blog |
| Nimble | Makes live web information searchable and structured for AI agents. | $47.0M | Q1 2026 | Nimble Blog |
| Mary Technology | Turns legal documents into structured and searchable fact records. | $4.6M | Q1 2026 | LawNext |
| Potpie | Builds codebase knowledge graphs that provide context to AI coding agents. | $2.2M | Q1 2026 | TechFundingNews |
| Cognizo | Tracks how brands appear across AI answer engines. | $1.8M | Q1 2026 | TBMag |
| Reducto | Provides APIs for parsing, extracting, splitting, and editing complex documents. | $75.0M | Q4 2025 | PR Newswire |
| Phind | Provides an AI search and answer engine for software developers. | $10.4M | Q4 2025 | Axios |
| AnswerThis | Helps researchers find evidence and complete scientific literature reviews. | $0.5M | Q4 2025 | YC |
| You.com | Provides AI search infrastructure and answer APIs for agents and enterprises. | $100.0M | Q3 2025 | You.com |
| Exa | Provides a search engine and web retrieval API for AI systems. | $85.0M | Q3 2025 | Exa Blog |
| ProRata.ai | Provides AI search and answer tools designed for publishers. | $40.0M | Q3 2025 | BusinessWire |
| Atolio | Provides private enterprise search across permission-controlled company data. | $24.0M | Q3 2025 | Atolio |
| Tavily | Provides web search and retrieval APIs for AI agents. | $20.0M | Q3 2025 | Insight Partners |
| Firecrawl | Converts websites into structured data that AI agents can use. | $14.5M | Q3 2025 | ITNewsOnline |
| Perplexity | Combines AI models with live web search to provide cited answers. | $100.0M | Q3 2025 | PYMNTS |
| TopK | Combines vector, keyword, filtered, and ranked enterprise search. | $5.5M | Q3 2025 | TopK Blog |
| ZeroEntropy | Provides retrieval infrastructure for RAG applications and AI agents. | $4.2M | Q3 2025 | TechCrunch |
| Perplexity | Combines AI models with live web search to provide cited answers. | $500.0M | Q2 2025 | TechStartups |
| Glean | Provides enterprise search and AI assistants across company applications. | $150.0M | Q2 2025 | Glean |
| Rogo | Provides AI research and analysis tools for finance professionals. | $50.0M | Q2 2025 | Rogo |
| Reducto | Parses complex documents into structured inputs for AI applications. | $24.5M | Q2 2025 | Reducto Blog |
| Extend | Extracts and structures information from complex business documents. | $17.0M | Q2 2025 | BusinessWire |
| Elicit | Helps researchers find, review, and summarize scientific evidence. | $22.0M | Q1 2025 | Elicit Blog |
| Perplexity AI | Combines AI models with web search to provide cited answers. | $500.0M | Q4 2024 | FT |
| Sana | Provides enterprise AI search, knowledge management, and learning tools. | $55.0M | Q4 2024 | Sana |
| Voyage AI | Builds embedding and reranking models for semantic search and RAG. | $28.0M | Q4 2024 | Voyage AI |
| kapa.ai | Turns technical documentation and forums into AI-generated answers. | $3.2M | Q4 2024 | kapa.ai |
| Glean | Provides enterprise search and an AI assistant for internal company knowledge. | $260.0M | Q3 2024 | Glean |
| Hebbia | Helps enterprises search, read, and analyze large document collections. | $130.0M | Q3 2024 | Hebbia |
| Vectara | Provides trusted enterprise search and grounded RAG answers. | $25.0M | Q3 2024 | BusinessWire |
| Exa | Provides neural web search and retrieval APIs for AI applications. | $22.0M | Q3 2024 | BusinessWire |
| Consensus | Provides evidence-based answers from scientific research papers. | $11.5M | Q3 2024 | Consensus |
| AlphaSense | Provides AI market intelligence search across financial and business information. | $650.0M | Q2 2024 | PRNewswire |
| Upstage | Builds language models and AI tools for document processing. | $72.0M | Q2 2024 | Upstage |
| Perplexity AI | Combines AI models with web search to provide cited answers. | $62.7M | Q2 2024 | Latham & Watkins |
| Glean | Provides enterprise search and an AI assistant for internal company knowledge. | $200.0M | Q1 2024 | Glean |
| Perplexity AI | Combines AI models with web search to provide cited answers. | $73.6M | Q1 2024 | TechCrunch |
| Unstructured | Converts unstructured enterprise information into data ready for AI applications. | $40.0M | Q1 2024 | Bizwire |
| Nanonets | Automates data extraction and processing across business documents. | $29.0M | Q1 2024 | Nanonets |
| Qdrant | Provides an open-source vector database for semantic search and RAG. | $28.0M | Q1 2024 | Qdrant |
Related blog posts
- Which startups are the most valued in the AI knowledge and search market?
- How strong is fundraising in the AI knowledge and search market right now?
- Which startups have raised the most funding in the AI knowledge and search market?
- What are the fundraising trends in the AI knowledge and search market?
