EU Sovereignty Score

Software from Japan: 23 vendors in 21 categories

Japan lies outside the EU and the EEA. Contracts and data also fall under non-European law; every vendor below has a page with European alternatives.

vendors scored: 23
categories: 21
open source: 3
last checked: 11 October 2026

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Vendors, scored

Score per vendor: 0 = high exposure, 100 = sovereign

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Sovereignty score 79 out of 100FloorpBrowser · Non-EU vendor · open sourceFirefox-based browser with extra customisation options and privacy
Sovereignty score 79 out of 100MisskeySocial Media · Self-hosted / open source · open sourceDecentralised social media platform with rich features and customisability
Sovereignty score 77 out of 100SoftEther VPNVPN · Self-hosted / open source · open sourceOpen-source multi-protocol VPN program (Apache 2.0) for Windows, Linux and macOS, from the SoftEther VPN Project (Japan).
Sovereignty score 63 out of 100Zuken E3.seriesCAD & Engineering · Self-hosted / open sourceWindows software from Japanese company Zuken for designing electrical, fluid and wiring systems, including schematics and wire-harness layouts.
Sovereignty score 42 out of 100Clip Studio PaintDesign · Non-EU vendorJapanese digital-painting and manga-illustration software, the industry standard, from Celsys Inc.
Sovereignty score 42 out of 100Fujifilm DocuWorksDocument Management (DMS) · Non-EU vendorJapanese document-handling software for managing paper and digital documents together (Fujifilm Business Innovation).
Sovereignty score 42 out of 100GengoTranslation & Localisation · Non-EU vendor · owner in United StatesJapanese web-based translation platform with human and machine translation, owned by Lionbridge Technologies.
Sovereignty score 42 out of 100LineMessaging · Non-EU vendorJapanese messaging and VoIP app, owned by LY Corporation (SoftBank/Naver).
Sovereignty score 42 out of 100Trend MicroCybersecurity · Non-EU vendorJapan-headquartered cybersecurity company offering endpoint, cloud, email and network security products; listed on the Tokyo Stock Exchange.
Sovereignty score 42 out of 100Yahoo! Japan MapsMaps & Navigation · Non-EU vendorJapanese mapping platform from LY Corporation (Tokyo).
Sovereignty score 32 out of 100AsprovaSupply Chain & Asset Management · Non-EU vendorJapanese production planning and scheduling software (Asprova APS) from Asprova Corporation, Tokyo.
Sovereignty score 32 out of 100BacklogProject Management · Non-EU vendorProject management and issue tracking platform with built-in Git and SVN support, by Nulab (Japan). For teams that manage projects, tasks and development work.
Sovereignty score 32 out of 100CacooWhiteboarding & Visual Collaboration · Non-EU vendorOnline diagramming and brainstorming tool from Japanese company Nulab (Fukuoka), with integrations for Confluence, Slack and Microsoft Teams. Also available for private server hosting.
Sovereignty score 32 out of 100ChatworkCollaboration · Non-EU vendorJapanese business chat service for teams, with messaging, video calls and files organised by project. Cloud-based and based in Japan.
Sovereignty score 32 out of 100Citadel AIAI Security · Non-EU vendorJapanese company (Citadel AI Inc., Tokyo) offering Citadel Lens for pre-deployment AI testing and Citadel Radar, a real-time AI firewall for GenAI applications and agents.
Sovereignty score 32 out of 100Fujifilm Synapse PACSHealthcare · Non-EU vendorSynapse PACS and enterprise imaging platform from Fujifilm Holdings, Tokyo, for radiology and image archiving in hospitals.
Sovereignty score 32 out of 100Hitachi LumadaIoT & Embedded · Non-EU vendorDigital transformation platform from Hitachi, Ltd. (Tokyo, Japan) for data analysis, AI and industrial applications, including Industrial AI.
Sovereignty score 32 out of 100LinoWhiteboarding & Visual Collaboration · Non-EU vendorOnline sticky-note and canvas service, usable in a web browser and as a mobile app, from Japanese company Asteria Corporation (Tokyo).
Sovereignty score 32 out of 100NottaAI Cowork · Non-EU vendorAI transcription and meeting notes tool from Notta, headquartered in Tokyo, Japan; creates transcripts, summaries and action items as an online service.
Sovereignty score 32 out of 100SAKURA internetCloud IaaS · Non-EU vendorJapanese cloud and hosting provider (SAKURA internet Inc., Osaka) offering cloud servers, GPU cloud for AI, VPS, dedicated servers and shared hosting.
Sovereignty score 32 out of 100SoracomIoT & Embedded · Non-EU vendorJapanese IoT connectivity platform with IoT SIM cards for cellular data (SORACOM Air) and cloud links; a KDDI subsidiary.
Sovereignty score 32 out of 100TeraBoxCloud Storage (Personal) · Non-EU vendorConsumer cloud storage for keeping and sharing large files, published under the name of Flextech Inc., headquartered in Tokyo (Japan).
Sovereignty score 32 out of 100Yahoo! JAPAN SearchSearch Engines · Non-EU vendorJapanese-language search service Yahoo!検索 (Yahoo! JAPAN Search) from LY Corporation in Tokyo (Japan).

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