Elium
The European knowledge platform for your teams and your AI agents.
A startup from Louvain-la-Neuve, Belgium, founded by Antoine Perdaens, Raphael Slinckx, Olivier Verbeke.
The European knowledge platform for your teams and your AI agents.
A startup from Louvain-la-Neuve, Belgium, founded by Antoine Perdaens, Raphael Slinckx, Olivier Verbeke.
This page is designed to help you find out whether Elium is good and if it is the right choice for you.
Elium is the European knowledge platform that makes enterprise AI reliable. AI is only as good as the knowledge behind it, and most companies feed their AI assistants the same scattered, outdated content their people already struggle with. Elium fixes the layer underneath.
The platform turns know-how spread across teams, tools and inboxes into one governed source of truth: verified, current and permission-aware, so people and AI agents see only what they are meant to. Every answer is tracked, whether it was served, missed or is at risk. Drift and gaps are flagged and routed to an owner, with a human in the loop.
Three teams get the most from it. Global operations keep procedures correct across sites and languages. Customer service teams answer faster and more consistently. IT support teams cut repeat tickets by making the answer findable the first time.
Elium connects to Microsoft 365, SharePoint, Teams, Slack, Google Workspace, Salesforce, ServiceNow, Zendesk, Jira, Confluence and Notion, and exposes knowledge to AI tools through a Model Context Protocol server, a GraphQL API and a search API. It works behind Microsoft Copilot, Glean, Dust and in-house assistants rather than replacing them.
Elium is built and hosted in Europe, ISO/IEC 27001:2022 certified, GDPR-compliant with a DPO and a DPA, and available as SaaS or private cloud, including French hosting on SecNumCloud-qualified infrastructure. Founded in 2007 and independently owned following a management buyout, it is trusted by 150+ organisations including VINCI Energies, Fnac Darty, L'Oreal and SPIE.
Listed in
AI search and answers, with sources
Ask a question in plain language and get an answer with the documents it came from, so anyone can check it.
One governed source of truth
Know-how spread across teams, tools and inboxes becomes one verified library, with an owner for every piece of content.
Permission-aware for people and AI agents
Every answer respects the reader's access rights, so an AI agent never shows content the person is not allowed to see.
Content that stays current
Expiry reminders, gap and duplicate detection, and review workflows catch content going out of date and send it to its owner.
Connect your own AI tools and agents
A Model Context Protocol server, a GraphQL API and a search API open governed knowledge to Microsoft Copilot, Glean, Dust or an in-house assistant.
Guided procedures and templates
Decision trees walk people through a procedure step by step, and reusable templates with an AI editor keep new content consistent.
Usage and AI answer dashboards
See what people asked, what was answered, what was missed and what is at risk, per team and per space.
European hosting and compliance
Built and hosted in Europe, ISO/IEC 27001:2022 certified and GDPR-compliant, as SaaS or private cloud, including French hosting on SecNumCloud-qualified infrastructure.
AI is only as good as the knowledge behind it, and that is the layer Elium works on.
Most tools store content. Elium governs it. Know-how spread across teams, tools and inboxes becomes one source of truth that is verified, current and permission-aware, and the same library answers your people and feeds your AI agents. Both see the same facts, and neither sees what it is not allowed to see.
Every answer is tracked, whether it was served, missed, or is going out of date. Gaps and drift are flagged and routed to a named owner, with a human in the loop, so quality is measured rather than assumed.
Elium also sits behind the AI tools you already run instead of competing with them. A Model Context Protocol server, a GraphQL API and a search API expose governed knowledge to Microsoft Copilot, Glean, Dust or an in-house assistant.
It is European by construction: built and hosted in the EU, ISO/IEC 27001:2022 certified, with French hosting available on SecNumCloud-qualified infrastructure.
Your data stays in Europe. Elium is hosted in Belgium on Google Cloud, or in France on 3DS Outscale's SecNumCloud-qualified infrastructure for customers who need it. The company is European and independently owned, ISO/IEC 27001:2022 certified, GDPR-compliant with a DPO and a data processing agreement. For a European buyer that is a shorter procurement conversation.
It complements your AI tools rather than replacing them. Elium is the governed knowledge layer behind Microsoft Copilot, Glean, Dust or an assistant you built yourself, reached through a Model Context Protocol server and APIs. You govern the knowledge once and reuse it wherever your people work. Nobody has to rip anything out.
Governance is the product, not a setting. Expiry reminders, gap and duplicate detection, review and approval workflows, and dashboards showing what was answered and what was missed. This is the part that breaks first as a knowledge base grows, and it is why global operations, customer service and IT support teams are the ones who get the most out of it.
Where Elium is not the right answer: a small team that wants a free personal wiki. The minimum is 10 users and the platform is built for organisations that need permissions, audit and multiple spaces.
Mid-sized and large organisations, mostly in Europe, where know-how is spread across sites, languages, teams and tools. More than 150 organisations use Elium, among them VINCI Energies, Fnac Darty, L'Oreal, SPIE, the Council of Europe and SNCF.
Three kinds of team get the most out of it:
The buyer is usually a knowledge, operations, customer service or IT leader, often with a small central knowledge team behind them. A deployment is one platform made of many spaces, one per team, so each team owns its own content while the organisation keeps a single governed foundation for its people and its AI agents.
It is a poor fit for individuals and very small teams: the minimum is 10 users, and the value is in permissions, review workflows and audit at scale.
The company was founded in Belgium in 2007 by Antoine Perdaens, Raphael Slinckx and Olivier Verbeke, under the name Knowledge Plaza. It took the name Elium in 2017. Antoine Perdaens is still the CEO.
The problem has been the same since the start: large organisations know a great deal, and almost none of it is where the next person needs it. Procedures live in one team's drive, the real answer lives in a colleague's head, and the official document was last reviewed three years ago.
Enterprise AI made that visible rather than solving it. An assistant built on scattered and outdated content gives wrong answers faster and with more confidence. So Elium concentrated on the layer underneath: making the knowledge itself governed, current and permission-aware, then serving it to people and to AI agents through the same rules.
Elium is headquartered in Louvain-la-Neuve, Belgium, with an office in Neuilly-sur-Seine, France. It is privately owned following a management buyout, and is used by more than 150 organisations and around 150,000 people. It was named a reference European provider for enterprise knowledge management in the Lecko 2026 study.
Elium is a cloud platform, delivered as SaaS or private cloud. The parts that matter to a buyer:
Elium is ISO/IEC 27001:2022 certified at the organisation level and GDPR-compliant, with a DPO and a data processing agreement.
More than 150 organisations use Elium, with around 150,000 active users across 1,200+ teams, and a 98.8% renewal rate. Several large public-sector bodies and international organisations use it under agreements that do not allow us to name them.
We have collected here some useful links to help you find out if Elium is good.
Check the traffic stats of Elium on SimilarWeb. The key metrics to look for are: monthly visits, average visit duration, pages per visit, and traffic by country. Moreoever, check the traffic sources. For example "Direct" traffic is a good sign.
Check the "Domain Rating" of Elium on Ahrefs. The domain rating is a measure of the strength of a website's backlink profile on a scale from 0 to 100. It shows the strength of Elium's backlink profile compared to the other websites. In most cases a domain rating of 60+ is considered good and 70+ is considered very good.
Check the "Domain Authority" of Elium on MOZ. A website's domain authority (DA) is a search engine ranking score that predicts how well a website will rank on search engine result pages (SERPs). It is based on a 100-point logarithmic scale, with higher scores corresponding to a greater likelihood of ranking. This is another useful metric to check if a website is good.
The latest comments about Elium on Reddit. This can help you find out how popualr the product is and what people think about it.
Elium | Software Engineer Front-End | Belgium | Full time, open to remote (EU time zone) | https://elium.com Elium is a knowledge-sharing platform that helps users capture, curate and share essential information and successfully collaborate. - Source: Hacker News / over 5 years ago
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