Leafworks Expands ISMS Certification Scope to Four Group Companies, Streamlining Internal Collaboration through Unified Security Management

For Immediate Release

May 26, 2026

Leafworks Inc.

Kenta Sawa, Representative Director

Leafworks Inc. (Location: Otsu City, Shiga Prefecture; Representative Director: Kenta Sawa; URL: https://www.leafworks.jp), a provider of cloud services for businesses, has renewed its certification based on the international standard for Information Security Management Systems (ISMS), "ISO/IEC 27001," and added four group companies based in its Musashino Office to the scope of certification.

As Leafworks Inc. advances the diversification of its business domains and strengthens group management, it is working to build a seamless collaboration system within the group, leveraging the expertise of each company.

This expansion of certification scope is intended to establish a common foundation for information security management in the areas covered by each group company, including system development, Web production, e-commerce operation, and consulting. By doing so, the group aims to make internal cooperation smoother and strengthen its ability to provide integrated services from planning and development to operation and support.

## Background of Group Management Strengthening

In recent years, the roles required of web services, e-commerce sites, systems, and brand strategies have become diversified. To respond to these changes, the Leafworks Group is working to build a service provision system that leverages the expertise of each company and the resources of the group as a whole.

By expanding the scope of ISMS certification to four group companies based at the Musashino Office, the group has established common rules and operational systems for information management. Going forward, the group will continue to strengthen its internal production and collaboration systems.

## Certification Overview

Target Organization: Leafworks Inc.
Headquarters Location: 1-14-34 Mano, Otsu City, Shiga Prefecture, 520-0232
Scope of Operations: Provision of cloud services for businesses; planning, development, management, and operation of Web services and e-commerce sites; IT consulting services.

Declaration of Applicability: Version 3.1
Standard: ISO/IEC 27001:2022 + Amd 1:2024 (JIS Q 27001:2025)
Registration Number: ISA IS 0382

## Details of Target Organizations

- Headquarters
Scope: Same as above
Location: 1-14-34 Mano, Otsu City, Shiga Prefecture, 520-0232

- Musashino Office
Scope: E-commerce site operation
Location: 5F Musashino Nissay Plaza, 1-11-4 Nakacho, Musashino City, Tokyo, 180-0006

- GOOODCREW Inc.
Scope: Web page production
Location: 5F Musashino Nissay Plaza, 1-11-4 Nakacho, Musashino City, Tokyo, 180-0006

- Cleaver Inc.
Scope: System development
Location: 5F Musashino Nissay Plaza, 1-11-4 Nakacho, Musashino City, Tokyo, 180-0006

- Regulus Solutions Inc.
Scope: E-commerce consulting
Location: 5F Musashino Nissay Plaza, 1-11-4 Nakacho, Musashino City, Tokyo, 180-0006

- ATTRACTION Inc.
Scope: E-commerce site construction and brand consulting
Location: 5F Musashino Nissay Plaza, 1-11-4 Nakacho, Musashino City, Tokyo, 180-0006

## Future Outlook

In recent years, due to the evolution of technology, including AI, the barrier to creating systems and content itself has been lowered. On the other hand, the importance of ensuring that provided services and productions are operated correctly and safely, and that the organization guarantees their quality and responsibility, is higher than ever.

The Leafworks Group will continue to work together as a group to operate and continuously improve its ISMS, and will advance the development and provision of highly safe services.