European Enterprise Search Tools

#1 Langdock

Berlin, Germany Business plan: Standard seat €25, Business Max seat €99, each per user per month before VAT, 20% lower when billed yearly / Workflows add-on from €539 per workspace per month / Enterprise on request Seven days free, with €5 of model credit and no card needed

Best for: Staff-wide AI chat and agents at a stated seat price, hosted in the EU

• Operating company. Langdock GmbH, HRB 254499 Amtsgericht Berlin (Charlottenburg)
• Jurisdiction. EU (Germany)
• Where the data sits. EU: shared SaaS runs through Microsoft Azure on EU servers, with the application and most configurable models kept inside the EU, according to its security page
• Independent checks. Claims ISO 27001 and SOC 2 Type II; says customer data is not used for training
• Source code. Closed source
• Replaces. Microsoft Copilot Studio, ChatGPT Enterprise

Langdock combines a chat that works with several model providers, agents you configure yourself, workflow automation, integrations and an API in one workspace. The operator is Langdock GmbH of Berlin (Greifswalder Strasse 212, Amtsgericht Charlottenburg, HRB 254499).

Of the eleven tools in this section it is the one whose price list is easiest to read: a Standard seat at €25 and a Business Max seat at €99 per user per month before VAT, with a 20 percent reduction for yearly billing.

On hosting, the vendor writes that its shared SaaS runs through Microsoft Azure on servers in the EU, with the application and most configurable models staying there, and that customer content does not train models. It claims ISO 27001 and SOC 2 Type II. Large customers can ask for a dedicated tenant, bring-your-own-cloud from 2,000 seats or Kubernetes installation from 5,000 seats. Workflow runs cost extra, and the product leans towards chat and agents more than towards indexing old archives.

Standout feature. Langdock is the one tool here that prints a standard seat, a heavy-use seat and an automation add-on on a single public price list.

#2 Ayfie

Norway, Norway Index €2,000 per month; Assistant from €20 per user per month (10 to 50 users), €15 per user per month (51 to 300 users), Enterprise from €3,990 per month (300+ users); ready-made agents from €300 per month Demo on request

Best for: Organisations in Norway and the wider Nordic region that need an assistant grounded in their own documents and case systems

• Operating company. Ayfie International AS and Ayfie AS
• Jurisdiction. EEA, not EU (Norway)
• Where the data sits. Where you choose: SaaS, private cloud or on-premises
• Source code. Closed source
• Replaces. Glean, Microsoft 365 Copilot

Ayfie calls itself a context layer between company data and every AI experience staff use. Connectors read the sources, the index tracks what is current and who may see it, and the assistant and agents answer with a link to the source. The legal entities named are Ayfie International AS (organisation number 917913773) and Ayfie AS, formerly VirtualWorks AS, and the site points to an Oslo Stock Exchange investor page.

The connector list names SharePoint, Exchange, Teams, Confluence, Jira, iManage, NetDocuments and file servers, plus Norwegian case systems such as ePhorte, P360 and Acos Websak, and the vendor says Active Directory rights are mirrored. Deployment ranges from secure SaaS to private cloud and full on-premises with local models. The index is billed separately from the per-user assistant, so the monthly total is higher than the seat figure suggests, and Norway sits outside the EU.

Standout feature. Ayfie is the only tool here that bills the knowledge index and the assistant as two separate lines, which shows what the data layer costs by itself.

#3 IntraFind

Munich, Germany Pricing on request; free trial of iFinder available Demo on request

Best for: Public administration, courts, banks and insurers that want search and AI answers installed inside their own infrastructure

• Operating company. IntraFind Software AG
• Jurisdiction. EU (Germany)
• Where the data sits. On-premises, sovereign cloud or managed service
• Source code. Closed source
• Replaces. Glean, Coveo, Elastic Enterprise Search

IntraFind sells iFinder for search, iAssistant for chatting with company data and iHub for everyday AI tasks, all on one semantically enriched knowledge base with continuous permission checks. IntraFind Software AG sits at Landsberger Strasse 368 in Munich and is entered at the Munich District Court under HRB 134378. Search queries can be typed or spoken, and the vendor describes the platform as scaling to billions of documents.

The company has built enterprise search for more than twenty years and shows ISO/IEC 27001:2022 on its site. It lists 80+ connectors, hundreds of file formats, an Outlook add-in, a Confluence integration, and APIs and MCP for customers' own applications. Deployment can be on-premises, hybrid, sovereign cloud or managed service. Prices are not published, but a free iFinder trial is, which few quote-only vendors in this section match. References lean toward German-speaking public bodies and financial institutions.

Standout feature. IntraFind is the only quote-based search platform here that lets a technical team start on a free trial of the search product itself.

#4 Mindbreeze

Linz, Austria Pricing on request Demo on request

Best for: Large organisations with many heterogeneous systems that need one permission-aware knowledge layer

• Operating company. Mindbreeze GmbH
• Jurisdiction. EU (Austria)
• Where the data sits. Depends on the deployment option chosen
• Source code. Closed source
• Replaces. Glean, Coveo, Microsoft 365 Copilot search

Mindbreeze InSpire is an insight engine that connects business systems, keeps their permissions and feeds search, assistants and agents from one knowledge base. The European contact is Mindbreeze GmbH, Honauerstrasse 2 in Linz, entered under FN 262155y, and its imprint says Fabasoft AG, the Austrian software group, owns 85.5 percent. The product page claims 500+ data sources, and the documentation describes authorisation through graph structures with referenced access lists computed ahead of time.

A Model Context Protocol server lets AI agents use the indexed knowledge, and the same engine is packaged for contract management, RFP handling, quality management and process automation. A partner programme allows software vendors to embed it. The website also lists Mindbreeze Corp. in Chicago for North America and calls the headquarters 'Chicago and Linz', so confirm which entity signs. Prices are not published, deployments are normally projects, and cloud hosting regions were not stated.

Standout feature. Mindbreeze states the longest connector list in this section, 500+ sources, and hands the whole index to outside agents over MCP.

#5 LightOn

Paris, France Founded 2016 Enterprise pricing / Contact for quote Demo on request

Best for: European enterprises needing secure, compliant generative AI

• Operating company. LightOn SA
• Jurisdiction. EU (France)
• Source code. Closed source

LightOn built its place in this category on keeping everything inside the customer's perimeter. The Paris company, founded in 2016 as a spin-off from research at Ecole Polytechnique and Ecole Normale Superieure, sells the Paradigm platform for on-premises or private-cloud use, with retrieval-augmented generation over unstructured documents, fine-tuning on proprietary data and agents that choose between document search and web exploration. Its enterprise search and reasoning solution lets employees ask questions of internal repositories in natural language.

LightOn went public on Euronext Paris in 2024 and, according to the EP review, counts the Ile-de-France region, Safran, Groupama and the French Space Agency (CNES) among its customers, with partnerships at Orange Business and Hewlett Packard Enterprise.

The same review gives annual recurring revenue of 1.9 million euros at the end of December 2025, up 54 percent, and notes that hardware supply constraints slowed deployments. The company publishes retrieval models such as GTE-ModernColBERT on Hugging Face. Pricing is enterprise-only and starts with a demo.

Standout feature. LightOn installs a complete generative AI platform, fine-tuned models included, on the customer's own servers and publishes its retrieval research.

#6 Sinequa

Paris, France Pricing on request Demo on request

Best for: Large multinational organisations with complex systems, many languages and regulated data

• Operating company. SINEQUA (SAS), part of ChapsVision
• Jurisdiction. EU (France)
• Where the data sits. Cloud, on-premises or hybrid
• Source code. Closed source
• Replaces. Glean, Coveo, Elastic

Sinequa has sold enterprise search for over two decades and now positions the product as an agentic AI platform covering AI search, assistants, agents and advanced RAG, under the line 'Sinequa by ChapsVision'. The privacy policy names SINEQUA as a French simplified joint-stock company, registered in Paris under 442 599 213 at 24 rue de la Pepiniere. The company states that cloud, on-premises and hybrid deployment are available, tied to data residency rules in regulated industries.

Its own comparison page states 200+ native connectors, 350 document formats and natural language processing in 22+ languages, so a question in one language can surface documents in another. Typical sources named are SharePoint, Salesforce, SAP, ServiceNow, Jira and Confluence. Those figures come from the vendor and the page also ranks competitors. Sinequa is sold through demos and projects without published prices, and the buyer should confirm which entity signs the contract.

Standout feature. Sinequa is the tool here built around cross-language retrieval, backed by 22+ languages and 350 document formats.

#7 Squirro

Zurich, Switzerland Pricing on request Demo on request

Best for: Banks, insurers, government and other regulated organisations that cannot send data to third-party clouds

• Operating company. Squirro AG
• Jurisdiction. Switzerland (adequacy decision, outside the EEA)
• Where the data sits. Customer choice, including full on-premises
• Source code. Closed source
• Replaces. Glean, Coveo

Squirro presents itself as a GenAI platform proven in regulated industries, with enterprise search and insights as one solution area. Core components are agentic AI, knowledge graphs, guardrails, a privacy layer and a classifier, with taxonomy and ontology management. Its website terms name Squirro AG, Zurich, as service provider, apply Swiss law and set Zurich as the exclusive place of jurisdiction, and the privacy policy gives Muhlebachstrasse 164 as the controller address.

The vendor says its complete platform can be delivered fully on-premises, from secure VPCs for global banks to air-gapped defence networks, rather than as a reduced offline version. Visitors can try the agent catalog without signing up or speaking to sales. Banking, insurance, government, healthcare, manufacturing and telecom are the listed industries. The privacy policy mentions several group entities, prices are not published, and efficiency claims on the site are the vendor's own figures.

Standout feature. Squirro is the one tool here that states it ships the whole platform, not a cut-down edition, into air-gapped networks.

#8 Intergator

Dresden, Germany Pricing on request Demo on request

Best for: German public administration, industry, banks and insurers that want search on their own infrastructure

• Operating company. interface projects GmbH
• Jurisdiction. EU (Germany)
• Where the data sits. On-premises or private cloud
• Source code. Closed source
• Replaces. Glean, Coveo

Intergator is enterprise search from interface projects GmbH, Cottaer Strasse 2 in Dresden, registered at the Amtsgericht Dresden under HRB 8740. It comes in a Core edition for search and AI and AI+ editions that add generative answers, summarised with the sources visible. The AI edition connects document management systems, databases, file servers, wikis and e-mail and analyses content semantically.

Version 6.8, announced in September 2026, adds an agentic chat and improved hybrid search, and a Microsoft Teams plugin brings the assistant into chat. Packaged applications cover knowledge management, digital workplace, social intranet, website search and compliance monitoring. The vendor lists on-premises and private cloud and mentions no shared SaaS option, so the buyer carries more setup. Prices and connector counts are not published, and the site is oriented to the German-speaking market.

Standout feature. Intergator lets a buyer start with plain search in the Core edition and move to generated answers by changing edition, not product.

#9 Dust

Paris, France Founded 2022 From €24/user/mo (billed yearly) Demo on request

Best for: Teams building custom AI workflows

• Operating company. Dust
• Jurisdiction. EU (France)
• Source code. Closed source
• Replaces. ChatGPT Teams, Microsoft Copilot

Dust turns a company's existing tools into the knowledge base for custom AI agents. The Paris company was founded in 2022 by Gabriel Hubert, formerly at Stripe and Alan, and Stanislas Polu, formerly at OpenAI. Admins decide per agent which Slack channels, Drive directories, Notion pages or Confluence areas it may read, and agents can update Notion, HubSpot and Salesforce records as well as read them. Agents can call other agents, and Dust Apps cover custom actions.

Dust is model-agnostic across GPT-4, Claude, Gemini, Mistral and Grok, and holds SOC 2 Type II.

Its EP review cites Doctolib with more than 3,000 users, Alan and Wakam as customers, and reports 2,000-plus organisations and $7.3 million in annual recurring revenue by mid-2025, backed by $21.5 million from Sequoia Capital. Core platform code is published under the MIT licence. Seat pricing begins at $29 per month on the tool page. Enterprise customers add SSO/SAML, SCIM provisioning, audit logs and a choice of EU or US hosting.

Standout feature. Dust is the one tool here where non-engineers scope each agent to specific channels and folders and let it write back into Salesforce or HubSpot.

#10 Zeta Alpha

Amsterdam, Netherlands Open Access plan free / Personal AI Assistant €20 a month on annual billing / Team and Enterprise quoted Personal plan trial on request

Best for: Research and engineering groups that read papers and internal reports side by side

• Operating company. Zeta Alpha Vector B.V.
• Jurisdiction. EU (Netherlands)
• Source code. Closed source
• Replaces. Google Agentspace, Microsoft Copilot Studio

Zeta Alpha started as a search product for AI research literature and has grown into agentic search and retrieval-augmented generation for companies. A free Open Access plan covers open research, the Personal AI Assistant costs €20 a month with annual billing, a Team plan brings in material from Trello, Slack, Jira, Confluence, Google Drive and SharePoint, and an Enterprise plan adds custom agents working on private data.

The legal entity in the terms and privacy policy is Zeta Alpha Vector B.V., Science Park 608 in Amsterdam, under Dutch law. Enterprise customers can take a private tenant, with on-premises hosting possible, and the vendor lists 99.9 percent availability. What the pages do not say is just as useful: no cloud provider, region or security certificate is named, Team and Enterprise are priced by quote, and building your own agents is reserved for the top plan.

Standout feature. Zeta Alpha is the one tool here that starts from a free search over open AI research before it adds the private-data agent layer.

#11 deepset

Berlin, Germany Founded 2018 Haystack framework free and open source (Apache 2.0) / Studio free tier (1 workspace, 100 pipeline hours) / Enterprise: custom pricing on request Demo on request

Best for: Developers building governed RAG applications and AI agents

• Operating company. deepset GmbH
• Jurisdiction. EU (Germany)
• Source code. Closed source
• Replaces. LangChain, LlamaIndex

The Berlin company deepset maintains Haystack, a project under the Apache 2.0 licence with over 26,000 GitHub stars, used to assemble retrieval-augmented generation pipelines, agents and semantic search.

Unlike most vendors in this section, deepset sells building blocks rather than a finished assistant. The proprietary Haystack Enterprise Platform adds a visual pipeline builder, a test playground, guardrails and an audit trail with role-based permissions, and can run in the cloud or self-hosted. The vendor markets it as a platform for sovereign AI.

The company was founded in 2018 and holds SOC 2 Type II. Outside the United States the contracting party is the Berlin GmbH and German law applies, whereas a New York office serves American customers.

The free Studio tier is meant for trying things out: a single workspace and user, a hundred hours of pipeline time and fifty uploaded files. Enterprise buyers receive an individual offer, which a small team comparing against Dust's listed seat price will find harder to weigh. Teams without developers should treat Haystack as a component a partner builds with.

Standout feature. deepset gives you an Apache 2.0 retrieval framework you can inspect and self-host, with a Berlin company supplying the governed platform on top.