Knowledge Sense
Category: AI in Productivity
Japanese enterprise generative AI platform provider offering secure ChatGPT-based solutions for businesses and government agencies Knowledge Sense was founded in 2019. The company is led by Atsushi Kadowaki (門脇敦司). Based in Minato-ku, Tokyo. Team size: 1-10. Latest round: Seed.
- Founded
- 2019
- Headquarters
- Minato-ku, Tokyo
- Team size
- 1-10
Value proposition
Secure enterprise-grade generative AI platform (ChatSense) that prevents corporate data from being used for AI training while enabling internal data learning, with centralized account management, SSO, and usage monitoring
Products and solutions
ChatSense (enterprise generative AI / AI-agent platform: secure multi-model access GPT/Claude/Gemini, internal-data RAG/GraphRAG, Notebook AI, Cowork browser automation, slide generation AI, transcription AI, Deep Research, Outlook/Teams agents, image generation, code interpreter, multi-AI spend/usage management), ChatPro (earlier brand), Ozone (generative AI test service)
Unique value
Japanese-market-optimized enterprise AI with strong security (ISO/IEC 27001 certified), data non-use for training guarantee, local support, and integration with Japan's enterprise workflows including Box integration
Target customer
Large enterprises (TSE Prime-listed companies), government agencies, local municipalities, educational institutions in Japan
Industries served
Enterprise (cross-industry), Government/Municipal, Education
Technology advantage
Secure API-based access to OpenAI (GPT-4, GPT-4.1, GPT-5 series), Google Gemini, Claude models without data leakage; RAG for internal data; ISO 27001 certified; SSO/IP restriction/admin controls; Azure OpenAI support for on-premise deployment
How they differentiate
Japan-specific enterprise focus with local compliance, ISO 27001 security certification, data non-training guarantee, Japanese language optimization, local government/municipality specialization, and flexible pricing (free tier to enterprise)
Main competitors
Microsoft Azure OpenAI Service (direct enterprise competition); Ubie (AI healthcare, different vertical); Stockmark (Japanese enterprise AI); Brainpad (Japanese AI solutions)
Key partnerships
OpenAI (API access), Box (certified Box Ecosystem Solution), Microsoft Azure (Azure OpenAI Service), Microsoft 365 (SharePoint Online / OneDrive / Outlook / Teams integrations)
Notable customers
Fujitsu General (富士通ゼネラル), Ajinomoto Frozen Foods (味の素冷凍食品), Shimotsuma City Government (下妻市役所), Mitsui & Co. (三井物産), JR West China Mentec (JR西日本中国メンテック)
Major milestones
2019: Company founded; 2023: Launched ChatSense enterprise ChatGPT service; 2024: Reached 400+ corporate clients; 2025: 500+ corporate clients; ISO/IEC 27001 certification; Box certified integration; Slide generation AI launch; AI agent features
Growth metrics
500+ enterprise clients including TSE Prime-listed companies; deployed across large enterprises, municipalities, and universities
Market positioning
Leading Japanese domestic enterprise generative AI platform with 500+ corporate clients including TSE Prime-listed companies, competing against global players (Microsoft Azure OpenAI) by offering Japan-specific security, compliance, and support
Geographic focus
Japan (domestic market focus)
About Atsushi Kadowaki (門脇敦司)
University of Tokyo (東大); Founded Knowledge Sense in 2019 while at university; Previously interned at Manabo (株式会社マナボ) in sales, experienced M&A there; Self-taught programmer
Latest news about Knowledge Sense
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Official website: https://www.knowledgesense.jp/