HENNGE K.K. (Headquarters: Shibuya-ku, Tokyo; Representative Director and CEO: Kazuhiro Ogura) announces that its cloud security service “HENNGE One,” which mitigates security risks associated with SaaS usage and promotes technology adoption, now supports “SS1 Cloud,” an IT asset management tool, provided by DOS Co., Ltd. (Headquarters: Osaka-shi, Osaka; Representative Director: Tomio Oitate). The integration enables efficient issuing and installation of device certificates.
SS1 Cloud is a cloud-based solution for managing IT assets within an organization, offering robust security features like log management and device restrictions. It is extensively equipped with tools designed to facilitate IT operations within a hybrid work setup.
IT administrators can decrease their workload while implementing precise access controls by utilizing SS1 Cloud’s primary file distribution capability to deploy device certificates in bulk.
The integration of single sign-on (SSO) between HENNGE One and SS1 Cloud began in May 2025. Further collaboration between the two services allows users to achieve enhanced security.
HENNGE will expand the range of SaaS that integrates with HENNGE One to support companies with IT applications and foster innovation.
* Please note that HENNGE cannot answer inquiries regarding the operation, specifications, or functions of SS1 Cloud. Please contact the SS1 Cloud provider.
About SS1 Cloud
SS1 Cloud is a comprehensive, cloud-based IT asset management solution that enables organizations to manage software, servers, and PCs while implementing security measures like log management and device restrictions.
Designed to support IT operations in hybrid work environments, it features robust capabilities for monitoring Microsoft 365 usage and managing Windows updates. Its widespread adoption by numerous companies is a result of its transparent pricing, extensive support, and the flexibility to deploy only the specific functions an organization requires.
URL: https://www.dos-osaka.co.jp/ss1/cloud/point/
About HENNGE One
HENNGE One is a cloud security service with the largest market share in Japan* that helps businesses boost productivity. While leveraging new technologies like SaaS is vital for productivity gains, businesses face challenges such as implementing zero-trust security.
To address these challenges, HENNGE One offers three editions: the Identity Edition, which centralizes and protects multiple system IDs for secure and efficient work; the DLP Edition, which prevents accidental leaks of scattered organizational information; and the Cybersecurity Edition, which safeguards companies from cyber-attacks through a comprehensive approach spanning technology, people, and processes.It achieves zero-trust security through a holistic security service, which reduces the burden of implementation and operation, thereby fulfilling the liberation of technology.
URL: https://hennge.com/global/service/one/
About DOS Co., Ltd.
DOS Co., Ltd. specializes in manufacturing comprehensive IT asset management software, notably the “SS1” series. Leveraging years of technical expertise, the company produces highly dependable solutions for operations, security, and license management that are widely adopted by major corporations in Japan.
The company’s commitment to quality is reflected in its end-to-end service model, which encompasses everything from initial implementation support and system design to ongoing maintenance and operation. Driven by a philosophy of continuous research and development, DOS Co., Ltd. strives to deliver high-quality, optimal solutions tailored to customer needs.
Company name: DOS Co., Ltd.
Address: 1-15-27 Edobori, Nishi-ku, Osaka-shi, Osaka
Representative: Tomio Oitate (Representative Director)
URL: https://www.dos-osaka.co.jp/
About HENNGE K.K.
HENNGE K.K. is a SaaS company guided by the management philosophy of “liberation of technology to change the world,” dedicated to bridging the gap between advanced technologies and practical application. It develops and sells distinctive services: a cloud security service with the largest market share in Japan, HENNGE One, which offers comprehensive security, including single sign-on (SSO), access management, email security, and secure file sharing, alongside device management and protection based on zero trust principles; a cloud email distribution service, Customers Mail Cloud. Established in November 1996, HENNGE was listed on the Tokyo Stock Exchange (TSE) Mothers (now Growth) in October 2019.
The company name “HENNGE” is a portmanteau of the Japanese word for transformation, ‘HENNKA,’ and ‘CHALLENGE,’ signifying its commitment to embracing every change as an opportunity.
Company name: HENNGE K.K. (securities code: 4475)
Address: Daiwa Shibuya Square, 16-28 Nampeidaicho, Shibuya-ku, Tokyo
Representative: Kazuhiro Ogura (Representative Director, President and CEO)
URL: https://hennge.com/
*Ranked No. 1 in the IDaaS Market (Sales and Share by Vendor) for FY2025 (forecast), based on the ITR Market View: Identity and Access Management/Personal Authentication Cybersecurity Market 2026 by ITR.
– Press Contact
HENNGE K.K.
Corporate Communication Division
Email: hennge-pr@hennge.com
TEL: 03-6415-3660
Person in charge: Ichishima, Yano
The names of companies, products, and services mentioned in this press release are trademarks or registered trademarks of HENNGE K.K. or other related organizations.