ZenmuTech

What ZenmuTech does

ZenmuTech Co., Ltd. is a Japanese information security company founded in March 2014 (originally as TCSI) and headquartered in Tokyo, with a US subsidiary in Sunnyvale, California. It develops and commercializes a proprietary secret dispersion technology based on the All-or-Nothing Transform (AONT) methodology, which splits data into meaningless fragments distributed across multiple storage locations so that no single fragment alone carries any information. The company's product portfolio centers on three core offerings — ZENMU Virtual Drive (a post-VDI secure FAT endpoint solution for PC fleets), ZENMU Engine (an SDK enabling third parties to embed secret dispersion into their own products), and QueryAhead® (a secret computation platform for processing encrypted data without decryption) — supplemented by task-specific modules including ZENMU for PC, ZENMU for Delivery, and ZENMU for Meister. Revenue is generated through software licensing (perpetual and subscription), SDK licensing to technology partners, and secure computation services, with pricing structured as enterprise license + dedicated engineer support packages and multi-year contracts.

ZenmuTech targets Japanese large enterprises and government agencies with critical data security needs, particularly organizations seeking to replace or supplement costly virtual desktop infrastructure (VDI) deployments and to enable secure remote work. Named enterprise customers span agriculture (JA ZEN-NOH), securities (Matsui Securities), logistics (Mitsui Soko Holdings), financial services (Mitsubishi HC Capital IT Partners), healthcare (Hogy Medical), manufacturing (Ebara), aviation (ANA), professional services (Deloitte Touche Tohmatsu, NRI), and municipal government (Mishima City), with the company reporting more than 100,000 accounts deployed. Distribution combines direct enterprise sales with a channel network of system integrators (Nippon Steel Solutions, Toshiba Digital Solutions, Hitachi Systems Engineering Services), OEM partners embedding ZENMU Engine, and US-focused resellers.

The company has pursued an aggressive partnership strategy to extend secret dispersion into adjacent verticals, including a joint-developed medical AI proxy with HAIP deployed inside AIHOBS' Digital Trust Grid (April 2026), a co-development with NICT and Nassua Solutions to embed the technology in municipal NerveNet mesh networks (April 2026), and a secure RAG solution with Technica AI and Aegis Application backed by a patent filing (May 2026). ZenmuTech raised disclosed cumulative venture funding of approximately JPY 790M (around USD 5.2M) across 2016–2024 rounds, received ISO/IEC 27001:2022 certification (BSI Group Japan, May 2024), and completed its IPO on the Tokyo Stock Exchange Growth Market in March 2025 under ticker 338A.

Name

ZenmuTech

Legal name

株式会社ZenmuTech

Website

https://zenmutech.com

Company type

Public

Founded year

2014

Operating status

Operating

Headcount range

11–50 employees

Short description

ZenmuTech provides data security software based on proprietary AONT secret dispersion technology, splitting data into meaningless fragments so no single piece reveals information. It sells ZENMU Virtual Drive (endpoint security), an SDK (ZENMU Engine), and the QueryAhead secure computation platform to Japanese enterprises and government agencies, with over 100,000 accounts deployed.

Ownership category

akta.pro rank

Product category

Data Security Software

NAICS

Software Publishers (5132), Security Systems Services (except Locksmiths) (561621)

SIC

Services-Prepackaged Software (7372), Services-Computer Programming Services (7371)

akta.pro primary industry

Secrets Management & Cloud Key Management (KMS, Vaults) (HDADADAK)

akta.pro secondary industries

Data Security & Privacy for Cloud (DLP, DSPM, Tokenization) (HDABAHAK), Confidential AI & Privacy-Preserving ML (federated learning, MPC, HE, TEEs) (HDAAAKAI), Hybrid Cloud Security, Identity & Policy Enforcement (HDABAMAC)

Keywords

• Data security software
• Secret sharing technology
• Encryption software
• Zero-knowledge data protection
• Secure file transfer

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Personnel, Marketing or Sales, Operations, Infrastructure

Revenue model

1. Software Licensing: Sale of ZENMU Virtual Drive and related security software products to enterprise customers. Products offered as perpetual licenses or subscriptions.
2. SDK Licensing: ZENMU Engine SDK licensed to technology partners and developers for integration into their products and solutions.
3. Secret Computation Services: QueryAhead® platform providing secure computation capabilities, potentially as subscription or usage-based model.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels5 records

Core offering

ZenmuTech develops and sells data-protection software that uses its proprietary AONT (All or Nothing Transform) secret-sharing technology to fragment data so that no single fragment is meaningful on its own and no master encryption key is held by the customer. Flagship commercial offerings include the ZENMU Virtual Drive post-VDI secure environment, the ZENMU Engine SDK for embedding the technology into third-party products, QueryAhead for secure federated computation, and purpose-built packages for PCs, file delivery, and administrator/data separation.

Product overview

ZenmuTech provides a portfolio of data security solutions centered on its proprietary AONT (All-or-Nothing Transform) secret dispersion technology. The core product line includes ZENMU Virtual Drive (post-VDI secure FAT solution for endpoint security), ZENMU Engine (SDK for embedding secret dispersion into third-party products), and QueryAhead® (secure computation for processing encrypted data). Related modules—ZENMU for PC (safe external PC use), ZENMU for Delivery (secure file transfer), and ZENMU for Meister (internal fraud prevention)—extend the platform for specific use cases. All products are unified by the core principle of dispersing data into meaningless fragments that cannot be reconstructed without all pieces.

Differentiator

Problem solved

Functional benefit

Brands

• ZENMU: Core secret sharing technology brand. Includes ZENMU Virtual Drive (secure FAT PC solution), ZENMU for PC, ZENMU for Delivery, ZENMU for Meister, and ZENMU Engine SDK.
• ZENMU Virtual Drive
• ZENMU Engine
• QueryAhead
• ZENMU for PC
• ZENMU for Delivery
• ZENMU for Meister

Products and services

• ZENMU Virtual Drive Post-VDI secure FAT solution that fragments data using AONT so that no single fragment is meaningful and no master encryption key exists; used by Japanese government agencies, defense-related bodies, and large enterprises to secure data on remote/BYOD devices.
• ZENMU Engine Software development kit that lets third-party software vendors and SaaS providers embed ZenmuTech's zero-knowledge AONT data-protection technology into their own applications, enabling built-in encryption without managing master keys.
• QueryAhead Secure computation service that enables organizations to perform data processing and analytics while keeping underlying fragments protected, used to safely leverage sensitive data with generative AI and other services.
• ZENMU for PC Endpoint security package that lets users safely use PCs for remote work by fragmenting data with AONT, eliminating the need for dedicated thin-client terminals.
• ZENMU for Delivery Secure file-transfer package that uses AONT fragmentation to protect files in transit and at rest without relying on a master encryption key.
• ZENMU for Meister Specialized package that uses AONT fragmentation to separate administrator privileges from data content, limiting what administrators can see or exfiltrate in production environments.

Quantifiable outcome

• 100,000+ accounts deployed across enterprise customers
• +1 more outcomes

Named customers12 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

AI capability3 records

Feature7 records

Partnerships

21 partnerships are on record, tiered core, secondary and primary.

• Technica AI (株式会社Technica AI)coreStrategic or Co-development Partner · 11 May 2026Technica AI provides AI platform 'AIKNOW' and handles RAG and AI implementation. Partnering with ZenmuTech to integrate secret sharing technology for secure RAG implementations protecting knowledge bases from data leakage.
• Aegis Application (イージス・アプリケーション株式会社)secondaryGTM or Marketing Partner · 11 May 2026Aegis Application provides AI consulting and implementation support services. Partner responsible for customer solution design, implementation support, and business promotion for secure AI utilization in the secret sharing × RAG solution.
• NICT (National Institute of Information and Communications Technology)coreStrategic or Co-development Partner · 23 April 2026NICT developed the disaster-resistant regional network 'NerveNet' for public municipalities. Joint development with ZenmuTech to implement secret sharing technology for data protection in municipal networks, combining network resilience with data meaningless security.
• Nassua Solutions (ナシュア・ソリューションズ株式会社)coreStrategic or Co-development Partner · 23 April 2026Nassua Solutions received technology transfer from NICT for the NerveNet mesh network. Partnering with ZenmuTech to add secret sharing data protection to the disaster-resistant network for public municipalities.
• AIHOBS (株式会社AIHOBS)coreStrategic or Co-development Partner · 14 April 2026AIHOBS operates the 'Digital Trust Grid' medical DX infrastructure. ZenmuTech's secret sharing technology was adopted as a 'secret sharing proxy' developed jointly with HAIP, implementing network-level data protection for the medical AI platform. This represents the first practical implementation of secret sharing in a medical operational network.
• HAIP (Healthcare AI Platform Technology Research Association)coreStrategic or Co-development Partner · 14 April 2026HAIP is a medical AI platform technology research association established with government approval. ZenmuTech co-developed 'secret sharing proxy' technology with HAIP for network-level security implementation in medical AI applications.
• Nippon Steel Solutions (日鉄ソリューションズ)primaryChannel Partner/ Reseller/ DistributorSystem integrator offering ZENMU Virtual Drive as part of their remote work solution lineup since January 2023.
• Toshiba Digital Solutions (東芝デジタルソリューションズ)primaryChannel Partner/ Reseller/ DistributorSales partner for ZENMU Virtual Drive, expanding Toshiba's security solution lineup since March 2022.
• Instruction (インストラクション株式会社)secondaryChannel Partner/ Reseller/ DistributorSales partnership targeting SMEs with online support for implementation and operation since April 2024.
• Mintwave (ミントウェーブ)secondaryChannel Partner/ Reseller/ DistributorAgency sales partnership for ZENMU Virtual Drive distribution established October 2025.
• Shinter Technology (シンター・テクノロジー)secondaryChannel Partner/ Reseller/ DistributorSales partner for ZENMU Virtual Drive to North American customers since June 2024.
• Sinter Technology (シンター・テクノロジー)secondaryChannel Partner/ Reseller/ DistributorNorth America-focused sales partner providing ZENMU Virtual Drive to US customers since June 2024.
• AIST (National Institute of Advanced Industrial Science and Technology)coreStrategic or Co-development PartnerLong-standing collaboration with AIST on practical application of secret computation technology since 2018. Collaborative research on ZENMU-AONT architecture and theoretical safety verification.
• AnchorZsecondaryTechnology or IntegrationTechnology partnership for integrated security solutions announced August 2025.
• Logic and Design (ロジック・アンド・デザイン)secondaryTechnology or IntegrationTechnical partnership for real-time image enhancement combined with secret sharing technology, completing PoC in September 2025.
• Azil (アジラ)secondaryTechnology or IntegrationTechnical partnership for security solutions announced November 2025.
• Casley Deep InnovationssecondaryTechnology or IntegrationPartnership for collaboration starting August 2025.
• Initial Point (イニシャル・ポイント)secondaryChannel Partner/ Reseller/ DistributorAlliance partnership for innovative remote work solutions established January 2025.
• Howdy (ハウディ)secondaryTechnology or IntegrationCollaboration for safe data transmission, implementing secret sharing technology in Howdy's 'RxT-01' product since August 2025.
• RevoWorkssecondaryTechnology or IntegrationNext-generation file sharing system 'RevoWorks ZENMU-Storage' launched October 2025.
• BigObject (Taiwan)secondaryStrategic or Co-development PartnerStrategic cooperation MOU signed March 2026 with Taiwan-based BigObject for technology collaboration.

Scale indicators8 records

Recent moves8 records

Expansion highlights5 records

Market position

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCsj-0Xe1ZbdeiMSg8LbYq9w
• Facebookfacebook.com/ZenmuTech
• LinkedInlinkedin.com/company/zenmutech

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Subsidiaries1 record

Funding overview

Funding rounds4 records

Investors10 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about ZenmuTech