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HENNGE One Earns Top Honors in 5 Categories at “ITreview Grid Award 2026 Spring” — Praised for High Satisfaction and Recognition in Multiple Fields, Including Email Misdelivery Prevention

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, has received the highest honor, Leader, in five categories at the ITreview Grid Award 2026 Spring, hosted by ITcrowd Corp. The award signifies the service’s high satisfaction and recognition among users.

HENNGE One secured honors in five distinct fields: SSO (Single Sign-On), Misdirected Email Prevention Tool, Email Archive Service, Email Security Software, and Online Storage. Notably, this marks the inaugural Leader award for both the Online Storage and Email Security Software categories.

About ITreview Grid Award

The ITreview Grid Award, held quarterly, acknowledges user-supported products based on reviews from ITreview, Japan’s leading review platform for corporate services and products. 

The award recognizes products based on user satisfaction and recognition; products that excel in both are named Leaders, while those with high user satisfaction are designated High Performers. The 2026 Spring Awards are based on approximately 157,000 user reviews submitted on the website.The full list of winners for the ITreview Grid Award 2026 Spring is publicly available here.

Award details

HENNGE One has received the Leader award in the following five categories, which marks the 28th consecutive award in the SSO category and the 25th consecutive award in the email misdirection prevention tool category.

CategoryRankAward Winning StreakAwarded Product
SSO (Single Sign-On)Leader28 consecutive quarters (7 years)HENNGE One Identity Edition
Misdirected Email Prevention ToolLeader25 consecutive quarters (6 years and 1 quarter)HENNGE One DLP Edition
Email Archive ServiceLeader18 consecutive quarters (4 years and 2 quarters)HENNGE One DLP Edition
Email Security SoftwareLeaderfirst timeHENNGE One DLP Edition
Online StorageLeaderfirst timeHENNGE One DLP Edition

User stories and genuine opinions about HENNGE One, which help compare and consider the product, are available at the link below.

HENNGE One Reputation and Reviews: https://www.itreview.jp/products/hde-one/reviews

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 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.

– Contact information for inquiries regarding this press release
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.