Gunma Prefecture Adopts E-Contract Service "CloudSign"
Bengo4.com's e-contract service "CloudSign" has been adopted by Gunma Prefecture. This will enable Gunma Prefecture to start operating e-contracts from April 2026, further promoting the digitalization of contracts in local governments nationwide.
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- 📰 Published: May 1, 2026 at 00:30
- 🔍 Collected: April 30, 2026 at 16:01
- 🤖 AI Analyzed: April 30, 2026 at 16:31 (29 min after Collected)
Bengo4.com Inc. (Minato-ku, Tokyo; Representative Director, President and CEO, Lawyer: Taichiro Motoe) announces that Gunma Prefecture (Governor: Ichita Yamamoto) has adopted "CloudSign," a contract management platform.
The number of local governments nationwide that have adopted CloudSign exceeds 380, and its market share is approximately 70%. As the No. 1 e-contract service in terms of adoption by local governments*1, CloudSign will continue to promote the digitalization of contracts nationwide.
*1: Based on a self-conducted survey comparing the number of local governments that have decided to implement after a paid contract, from public offering, bidding, and proposal information disclosed by local governments nationwide. Survey conducted as of April 1, 2026.
Gunma Prefecture will start operating e-contract services utilizing CloudSign from April 2026.
■ Background of e-contract adoption and support in local governments
The acceleration of e-contract adoption in local governments is due to multiple overlapping factors. In addition to the ease of introduction brought about by the revision of the Local Autonomy Act Enforcement Regulations in 2021, the concrete effects demonstrated by pioneering local governments have been a major driving force. Clear benefits, quantifiable in terms of time savings, personnel cost reductions, savings on stamp duty, shipping, and printing costs, and reduced storage space, have attracted attention. Furthermore, the acceleration of adoption in certain regions has led to an increase in local governments realizing the benefits of e-contracts, which is another contributing factor.
◼︎ CloudSign Plan for Local Governments: https://www.cloudsign.jp/government/
■ About CloudSign: https://www.cloudsign.jp/
CloudSign is a contract management platform that allows the entire contract process, from conclusion to management and AI review, to be completed digitally. It enables smooth and secure contract conclusion through electronic signatures and timestamps compliant with the Electronic Signature Act. In 2023, it launched the "My Number Card Signature" function, the first in Japan for a general-purpose e-contract service. Furthermore, by actively adopting AI technology, such as AI contract management functions and the AI review support service "CloudSign Review," it achieves overall time reduction in contract operations. In the e-contract market, it is the No. 1 service in terms of sales share*2, widely adopted by over 300 companies and local governments.
*2: Fuji Chimera Research Institute, Inc. "Software Business New Market 2025 Edition" (e-contract tool 2024 actuals) market share.
◆ About Bengo4.com Inc.: https://www.bengo4.com/corporate/
Head Office: Kurosaki Building, 4-1-4 Roppongi, Minato-ku, Tokyo
Establishment Date: July 4, 2005
Representative: Taichiro Motoe, Representative Director, President and CEO, Lawyer
Listed Market: Tokyo Stock Exchange Prime Market
Business Description: With the mission of "Creating the next normal with professional tech," the company operates "Bengo4.com," Japan's largest legal portal site with over 60% of domestic lawyers registered. It also develops innovative services such as "Zeirishi.com" for tax consultations, "CloudSign," the No. 1 e-contract service in the domestic market, and "Legal Brain Agent," an AI agent specialized in legal affairs.
The number of local governments nationwide that have adopted CloudSign exceeds 380, and its market share is approximately 70%. As the No. 1 e-contract service in terms of adoption by local governments*1, CloudSign will continue to promote the digitalization of contracts nationwide.
*1: Based on a self-conducted survey comparing the number of local governments that have decided to implement after a paid contract, from public offering, bidding, and proposal information disclosed by local governments nationwide. Survey conducted as of April 1, 2026.
Gunma Prefecture will start operating e-contract services utilizing CloudSign from April 2026.
■ Background of e-contract adoption and support in local governments
The acceleration of e-contract adoption in local governments is due to multiple overlapping factors. In addition to the ease of introduction brought about by the revision of the Local Autonomy Act Enforcement Regulations in 2021, the concrete effects demonstrated by pioneering local governments have been a major driving force. Clear benefits, quantifiable in terms of time savings, personnel cost reductions, savings on stamp duty, shipping, and printing costs, and reduced storage space, have attracted attention. Furthermore, the acceleration of adoption in certain regions has led to an increase in local governments realizing the benefits of e-contracts, which is another contributing factor.
◼︎ CloudSign Plan for Local Governments: https://www.cloudsign.jp/government/
■ About CloudSign: https://www.cloudsign.jp/
CloudSign is a contract management platform that allows the entire contract process, from conclusion to management and AI review, to be completed digitally. It enables smooth and secure contract conclusion through electronic signatures and timestamps compliant with the Electronic Signature Act. In 2023, it launched the "My Number Card Signature" function, the first in Japan for a general-purpose e-contract service. Furthermore, by actively adopting AI technology, such as AI contract management functions and the AI review support service "CloudSign Review," it achieves overall time reduction in contract operations. In the e-contract market, it is the No. 1 service in terms of sales share*2, widely adopted by over 300 companies and local governments.
*2: Fuji Chimera Research Institute, Inc. "Software Business New Market 2025 Edition" (e-contract tool 2024 actuals) market share.
◆ About Bengo4.com Inc.: https://www.bengo4.com/corporate/
Head Office: Kurosaki Building, 4-1-4 Roppongi, Minato-ku, Tokyo
Establishment Date: July 4, 2005
Representative: Taichiro Motoe, Representative Director, President and CEO, Lawyer
Listed Market: Tokyo Stock Exchange Prime Market
Business Description: With the mission of "Creating the next normal with professional tech," the company operates "Bengo4.com," Japan's largest legal portal site with over 60% of domestic lawyers registered. It also develops innovative services such as "Zeirishi.com" for tax consultations, "CloudSign," the No. 1 e-contract service in the domestic market, and "Legal Brain Agent," an AI agent specialized in legal affairs.