Kumamoto City 'Data Utilization Platform': First Full-scale Adoption of 'Snowflake' Among Public Entities in Japan
Snowflake has completed its ISMAP registration and fully entered the Japanese public sector. In a historic first, Kumamoto City has adopted the AI Data Cloud as the core of its municipal data platform.
📋 Article Processing Timeline
- 📰 Published: April 24, 2026 at 20:00
- 🔍 Collected: April 24, 2026 at 11:31
- 🤖 AI Analyzed: April 25, 2026 at 02:10 (14h 38m after Collected)
April 24, 2026 - Snowflake GK (Location: Chuo-ku, Tokyo; Managing Director: Tatsuro Ukita; hereinafter 'Snowflake'), a provider of the AI Data Cloud, announced that it has completed its registration in the Information system Security Management and Assessment Program (ISMAP), launching its full-scale entry into the Japanese public sector. As a strategic first project, Snowflake's AI Data Cloud has been adopted as the core of the new 'Kumamoto City Data Utilization Platform' built by Kumamoto City for the fiscal year 2025.
■ Background
In recent years, the environment surrounding local governments has become increasingly complex and sophisticated, grappling with issues such as population decline, an aging society with fewer children, social infrastructure maintenance, and disaster response. To address these challenges, it has become essential to promote Evidence-Based Policy Making (EBPM)—making objective decisions based on data rather than relying on experience and precedent.
However, diverse operational data was dispersed inside and outside municipal offices, making the lack of a common platform for cross-sectional analysis and rapid decision-making a significant issue.
■ Overview of the Kumamoto City Data Utilization Platform
For the newly constructed data utilization platform, the Snowflake AI Data Cloud has been adopted. Snowflake is praised for its architecture that separates storage and computing, allowing for flexible scaling of processing performance according to analytical needs.
While Snowflake has predominantly been adopted by private enterprises, its strong reliability backed by ISMAP registration has led to its first full-scale adoption in Japan by a public entity, which requires rigorous security and governance. This has realized a data utilization environment that balances stability and scalability.
■ Features of the Kumamoto City Data Utilization Platform
First Adoption of Snowflake by a Public Entity Nationwide:
Equipped with high-speed processing, flexible scaling, and robust security through Snowflake's unique architecture, it handles diverse data utilization needs, drastically improving data analysis speed.
Accessible to All City Employees:
The environment allows all Kumamoto City employees to log into Snowflake. Without needing specialized technical knowledge, employees can access the latest data directly from their desks.
Efficient Data Shaping via No-Code Tools:
By utilizing the data integration tool 'ASTERIA Warp', the collection and processing of data into Snowflake is automated, significantly reducing the operational burden on staff.
Highly Scalable and Secure Cloud Architecture:
Built on AWS, the network, security, and monitoring systems are reinforced, allowing flexible responses to future expansions.
Promoting Cross-Organizational Data Utilization via Snowflake Data Sharing:
Diverse data from inside and outside the agency is centralized on Snowflake, enabling cross-departmental analysis.
Implementation Support from Partners:
Implementation aligned with municipal operations was achieved through the support of NTT DATA Kyushu, a Snowflake Partner Network (SPN) partner.
■ Initiatives for Operational Improvement
The platform achieves a reduction in the operational burden of collecting and analyzing diverse data from both internal and external sources. By integrating with BI tools, tasks such as aggregation and graphing are automated, drastically reducing the time spent on manual document creation.
■ Integration and Advanced Utilization of Open Data
In addition to internal municipal data, this platform incorporates various open data published by sources like e-Stat (a government statistics portal). With Snowflake's high data integration capabilities, data of varying formats and granularities can be centrally managed, enabling analysis that combines external and administrative data.
This supports more persuasive policy formulation and verification of policy effects, such as analyzing the correlation between demographic/socioeconomic indicators and specific policy measures.
■ Future Outlook
This initiative serves as a pioneering case study of data platform implementation using Snowflake in a public entity. Using this data utilization platform as a starting point, Kumamoto City will drive further sophistication of data-driven municipal operations.
Looking ahead, the city plans to explore the use of 'Snowflake Intelligence', an interactive AI feature provided by Snowflake. This aims to create an environment where employees can access data, conduct analysis, and gain insights using natural language. This will allow even employees without specialized analytical skills to examine policies and make decisions using data on Snowflake.
Tatsuro Ukita, Managing Director of Snowflake, stated:
'We are deeply honored that, following our ISMAP registration, Kumamoto City has become the first local government in Japan to fully adopt Snowflake.'
■ Background
In recent years, the environment surrounding local governments has become increasingly complex and sophisticated, grappling with issues such as population decline, an aging society with fewer children, social infrastructure maintenance, and disaster response. To address these challenges, it has become essential to promote Evidence-Based Policy Making (EBPM)—making objective decisions based on data rather than relying on experience and precedent.
However, diverse operational data was dispersed inside and outside municipal offices, making the lack of a common platform for cross-sectional analysis and rapid decision-making a significant issue.
■ Overview of the Kumamoto City Data Utilization Platform
For the newly constructed data utilization platform, the Snowflake AI Data Cloud has been adopted. Snowflake is praised for its architecture that separates storage and computing, allowing for flexible scaling of processing performance according to analytical needs.
While Snowflake has predominantly been adopted by private enterprises, its strong reliability backed by ISMAP registration has led to its first full-scale adoption in Japan by a public entity, which requires rigorous security and governance. This has realized a data utilization environment that balances stability and scalability.
■ Features of the Kumamoto City Data Utilization Platform
First Adoption of Snowflake by a Public Entity Nationwide:
Equipped with high-speed processing, flexible scaling, and robust security through Snowflake's unique architecture, it handles diverse data utilization needs, drastically improving data analysis speed.
Accessible to All City Employees:
The environment allows all Kumamoto City employees to log into Snowflake. Without needing specialized technical knowledge, employees can access the latest data directly from their desks.
Efficient Data Shaping via No-Code Tools:
By utilizing the data integration tool 'ASTERIA Warp', the collection and processing of data into Snowflake is automated, significantly reducing the operational burden on staff.
Highly Scalable and Secure Cloud Architecture:
Built on AWS, the network, security, and monitoring systems are reinforced, allowing flexible responses to future expansions.
Promoting Cross-Organizational Data Utilization via Snowflake Data Sharing:
Diverse data from inside and outside the agency is centralized on Snowflake, enabling cross-departmental analysis.
Implementation Support from Partners:
Implementation aligned with municipal operations was achieved through the support of NTT DATA Kyushu, a Snowflake Partner Network (SPN) partner.
■ Initiatives for Operational Improvement
The platform achieves a reduction in the operational burden of collecting and analyzing diverse data from both internal and external sources. By integrating with BI tools, tasks such as aggregation and graphing are automated, drastically reducing the time spent on manual document creation.
■ Integration and Advanced Utilization of Open Data
In addition to internal municipal data, this platform incorporates various open data published by sources like e-Stat (a government statistics portal). With Snowflake's high data integration capabilities, data of varying formats and granularities can be centrally managed, enabling analysis that combines external and administrative data.
This supports more persuasive policy formulation and verification of policy effects, such as analyzing the correlation between demographic/socioeconomic indicators and specific policy measures.
■ Future Outlook
This initiative serves as a pioneering case study of data platform implementation using Snowflake in a public entity. Using this data utilization platform as a starting point, Kumamoto City will drive further sophistication of data-driven municipal operations.
Looking ahead, the city plans to explore the use of 'Snowflake Intelligence', an interactive AI feature provided by Snowflake. This aims to create an environment where employees can access data, conduct analysis, and gain insights using natural language. This will allow even employees without specialized analytical skills to examine policies and make decisions using data on Snowflake.
Tatsuro Ukita, Managing Director of Snowflake, stated:
'We are deeply honored that, following our ISMAP registration, Kumamoto City has become the first local government in Japan to fully adopt Snowflake.'