5 Best European SharePoint Alternatives in 2026

Elium turns scattered procedures, policies and runbooks into one governed source of truth for the whole company. Content has owners, gets flagged when it goes stale, and is routed back for verification, so teams and their AI tools work from knowledge that is actually current.

Existing documents come in through AI import from SharePoint, Google Drive, Confluence, Notion or plain Markdown. Answers then reach people where they already work, in the web app, on mobile, in Microsoft Teams, Zendesk and ServiceNow, and reach AI agents through MCP, REST and API access that respects each user's permissions.

Key benefits:

• Expiration management flagging outdated pages and sending them to their owners
• AI search answering questions from verified company content
• Permission-aware AI so agents only see what the asking user may see
• AI import converting legacy documents into structured, maintainable articles
• Wide integrations with more than 30 tools including Teams, Slack, Jira and Salesforce
• Flexible deployment as SaaS, private cloud or on-premise for enterprise customers

Elium is built by Whatever SA, an independent company founded in 2007 in Walloon Brabant, Belgium, with a second office near Paris. It holds ISO/IEC 27001:2022 certification and processes data under GDPR. Standard SaaS data stays in the EU on Google Cloud's Belgian region, while customers who want to avoid US-owned infrastructure can choose hosting in France on 3DS Outscale, which is SecNumCloud-qualified. Customer content is never used to train models.

More than 150,000 people across 150+ organisations use Elium, including L'Oréal, BNP Paribas, VINCI Energies, SNCF and the Council of Europe.

Nextcloud is Germany's most widely deployed open-source collaboration platform, letting organisations run their own private cloud for file sync, video calls, email, and document editing on their own servers. With 400,000+ active deployments reaching tens of millions of users, it is the definitive European alternative to Microsoft 365 and Google Workspace.

The platform combines Nextcloud Files (storage and sync), Nextcloud Talk (chat and video), Nextcloud Groupware (calendar and contacts), and Nextcloud Office (real-time document editing) in a single installation. A REST API and 300+ marketplace apps extend it with LDAP, SAML, SharePoint, and hundreds of third-party integrations.

Key benefits:

• File sync and share across Windows, macOS, Linux, iOS, and Android clients
• Nextcloud Talk for end-to-end encrypted video calls and chat with no external service
• Nextcloud Office with real-time collaborative document, spreadsheet, and presentation editing
• Built-in AI assistant running locally with no data leaving your infrastructure
• 300+ marketplace apps for CRM, project management, e-signing, and more
• Full self-hosting on bare metal, VMs, Docker, or Kubernetes
• Enterprise edition with professional support, compliance tooling, and SLA guarantees

Developed and maintained by Nextcloud GmbH in Stuttgart, Germany, all data stays on infrastructure you control, with no third-party cloud involved. The platform is GDPR-native, supports HIPAA-capable configurations, and is used by major EU governments, universities, and public institutions that mandate on-premises data sovereignty.

Trusted by Siemens, the German Government, and thousands of public sector organisations across Europe, with 20,000+ GitHub stars and an active global community.

Tresorit is a Swiss end-to-end encrypted cloud storage and file collaboration platform with a zero-knowledge architecture: files are encrypted on your device before upload, and only you and explicitly authorised recipients can ever decrypt them. It holds the broadest compliance portfolio of any EU cloud storage solution: GDPR, HIPAA, ISO 27001, SOC 2, TISAX, ITAR, NIS2, and DORA.

Teams share files through encrypted tresor folders with granular access controls, watermarking, and the ability to revoke shared links instantly. Tresorit Engage provides secure data rooms for client and partner collaboration, while an eDiscovery module helps legal and compliance teams locate and export documents for regulatory requests.

Key benefits:

• Zero-knowledge E2E encryption means even Tresorit cannot access your files
• Encrypted team folders with granular permissions and instant access revocation
• Secure external sharing with password-protected, time-limited links
• HIPAA, TISAX, ITAR, and DORA compliance for heavily regulated industries
• eDiscovery module for locating files in response to legal and compliance requests
• Tresorit Engage with secure data rooms for client and partner document exchange
• Watermarking to trace leaked documents back to the source
• Available on Windows, macOS, iOS, Android, and web

Tresorit is headquartered in Zug, Switzerland, with operations in Budapest, Hungary. All data is stored on EU and Swiss infrastructure with customer-selectable data residency. Swiss law and GDPR govern all data handling, and the platform undergoes regular independent security audits with no U.S. entities involved in storage or processing.

Trusted by law firms, financial institutions, healthcare providers, and automotive manufacturers across Europe for provably secure file storage and external collaboration.

vBoxx gives businesses a European home for their files, email and servers, run from ISO 27001 certified datacentres in the Netherlands and Germany. Its new vBoxxCloud workspace brings storage, sync, sharing and document collaboration together in one place, aimed squarely at teams leaving Dropbox, Google Drive or OneDrive.

vBoxxCloud stores files in encrypted vaults with versioning and team folders, syncs them across devices and lets colleagues co-edit with comments, versions and approvals. Around that core, vBoxx sells vBoxxFiles for secure file sharing, the vBoxxVault password manager, hosted email, Microsoft 365 and Google Workspace backup, cloud VPS and managed Nextcloud, ownCloud and OpenCloud hosting.

Key benefits:

• Team storage and sync with versioning, team folders and selective sync
• Live co-editing with comments, version history and approvals
• Secure file sharing through vBoxxFiles, separate from the team workspace
• Password vault for storing and sharing company credentials
• Encryption with AES-256 at rest, TLS 1.3 in transit and per-tenant keys
• Backups for Microsoft 365, Google Workspace and company devices
• Hosting options from cloud VPS to managed Nextcloud and ownCloud

vBoxx B.V. is headquartered in The Hague, Netherlands, and has operated since 2012. The company is ISO 27001 certified by TUV NORD. vBoxxCloud runs primarily from Maincubes Amsterdam and Greenhouse Datacenters in Naaldwijk, with disaster recovery in Frankfurt, and vBoxx states that every subprocessor is EU-located and GDPR-bound.

vBoxxCloud is currently in an invite-only beta, adding e-signing, chat, video meetings and an AI assistant to the workspace. Ideal for Dutch and European SMEs that want their documents out of US clouds without giving up everyday collaboration.

Orbifs turns terabytes of heavy project files into an ordinary drive on Windows and macOS. CAD, BIM, point-cloud and media files stream on demand from a virtual project drive, so nobody waits for a full sync, fights a VPN, or overwrites a colleague's work with a stale copy.

Native desktop clients mount the drive like a local disk. Safe file locking keeps a single writer on Revit, ArchiCAD or AutoCAD models while everyone else reads, and a LAN cache (beta) brings office-network speed to large opens. Admins get audit export, and the Business plan adds SSO/SAML.

Key benefits:

• Virtual drive files appear local on Windows and macOS with no sync conflicts
• File locking one writer at a time on CAD and BIM models
• Immutable recovery roll back ransomware or accidental deletes from protected versions
• LAN cache office-network speed for heavy file opens (beta)
• Team plans 1 to 15 TB and 5 to 50 seats, from 69 euros per month
• Admin controls audit export on every plan, SSO/SAML on Business

Orbifs stores data in France on OVHcloud infrastructure, replicated across multiple EU data centres and governed by European law. The company behind it, Archi Systems AS, is based in Oslo, Norway (EEA), so GDPR applies by default and there is no US CLOUD Act exposure; a signable DPA and a CSA STAR Level 1 self-assessment are published.

Ideal for architecture and BIM studios, surveyors, contractors and media teams that want Dropbox-simple access to files far too heavy for Dropbox.