Construction Management Service "Work Site" Now Directly Usable from "My Green Site"
Key facts
- Construction Management Service "Work Site" Now Directly Usable from "My Green Site"
- MCD Three Inc. has added a Single Sign-On (SSO) function to its smartphone app for skilled workers, "My Green Site." This integration allows direct access to the construction site management and coordination service, "Work Site," from the "My Green Site" app. Site supervisors can now start using "Work Site" with a single tap, eliminating the need for ID issuance and site selection, further promoting the digitalization of site operations.
- Source: PR Times
- Date: June 11, 2026
Direct answer
MCD Three Inc. has added a Single Sign-On (SSO) function to its smartphone app for skilled workers, "My Green Site." This integration allows direct access to the construction site management and coordination service, "Work Site," from the "My Green Site" app. Site supervisors can now start using "Work Site" with a single tap, eliminating the need for ID issuance and site selection, further promoting the digitalization of site operations.
- Citation
- Construction Management Service "Work Site" Now Directly Usable from "My Green Site" (June 11, 2026), PR Times
- Source
- PR Times
- Date
- June 11, 2026
MCD Three Inc. has added a Single Sign-On (SSO) function to its smartphone app for skilled workers, "My Green Site." This integration allows direct access to the construction site management and coordination service, "Work Site," from the "My Green Site" app. Site supervisors can now start using "Work Site" with a single tap, eliminating the need for ID issuance and site selection, further promoting the digitalization of site operations.
📋 Article Processing Timeline
- 📰 Published: June 11, 2026 at 10:00
- 🔍 Collected: June 11, 2026 at 10:26 (26 min after Published)
- 🤖 AI Analyzed: June 12, 2026 at 16:52 (30h 25m after Collected)
MCD Three Inc. (Shibuya-ku, Tokyo, President and CEO: Masao Iida) has added a Single Sign-On (SSO) (Note 1) function to "My Green Site," a smartphone application for skilled workers.
This enables direct use of "Work Site," a service that digitizes construction site management and coordination operations, from the "My Green Site" app. Site supervisors (Note 2) can start using "Work Site" immediately with a single tap, without the hassle of ID issuance or site selection.
Three Points That Make "Work Site" Easier to Use
Ready to Use with One Tap
Log in to "Work Site" with a single tap from the "My Green Site" app. The need to enter IDs and passwords is eliminated, allowing site supervisors to use "Work Site" stress-free on site.
No Need for Site Supervisor ID Issuance Procedures
Previously, using "Work Site" required a procedure to issue IDs for site supervisors. With this new function, an ID is automatically issued simply by downloading and starting to use the "My Green Site" app. The procedure to start using "Work Site" is significantly simplified.
Site Information Linked Seamlessly
Site information displayed in "My Green Site" is directly linked to "Work Site," allowing site supervisors and skilled workers to start their work on "Work Site" without the operation of selecting a site. They can smoothly engage in digitizing site operations, such as registering work content and recording participation in KY (Risk Prediction) activities (Note 3).
Future Outlook
MCD Three aims to foster "My Green Site" as a tool for daily use on construction sites, simplifying site ID and password management and contributing to operational efficiency. Starting with this SSO integration with "Work Site," the company plans to expand collaborations with other companies' services, aiming to realize an environment where various IT tools can be easily accessed with a single ID.
Note 1: Single Sign-On (SSO): An authentication mechanism that allows access to multiple different services and systems with a single login operation.
Note 2: Site Supervisor: A site manager directly responsible for commanding and supervising workers at a construction site. Appointed by the employer based on the Industrial Safety and Health Act.
Note 3: KY (Risk Prediction) Activity: A safety activity conducted before starting work, where workers identify potential hazards for the day's work and confirm/share countermeasures. It is a fundamental safety management technique routinely implemented on construction sites.
What is the Site Construction Management Service "Work Site"?
One of the offerings in the "Kensetsu Site Series" cloud services for the construction industry, this service promotes the digitalization of construction site management and coordination operations. By digitizing tasks previously done on paper or verbally, such as daily work reports and KY records, it contributes to improved operational efficiency and productivity on site.
https://www.kensetsu-site.com/series/worksite/
What is the Smartphone App for Skilled Workers "My Green Site"?
A smartphone application for skilled workers registered with Green Site. It seamlessly links with Green Site's data on construction systems, worker rosters, and entry/exit records, contributing to the efficiency and advancement of construction operations and enhancing skilled workers' engagement on site.
https://www.kensetsu-site.com/series/my_greensite/
What is the Labor Safety Document Creation Service "Green Site"?
A service within the "Kensetsu Site Series" cloud services for the construction industry that allows for the creation, submission, and confirmation of labor safety documents (Green Files) over the internet. It contributes to the efficiency and paperless processing of document tasks for both prime contractors and subcontractors, from the pre-construction phase to post-construction.
https://www.kensetsu-site.com/series/greensite/
Company Overview
MCD Three was established in July 2025 through the merger of Industry One Inc., MCDigital Inc., and MC Data Plus Co., Ltd. With the mission "To stay close to industry and continue to face social issues," the company combines the strengths of design, digital, and data from the three merged entities. By building an integrated operating model from business concept to service provision utilizing AI and digital technologies, it aims to maximize customer value.
Company Name: MCD Three Inc.
Date Established: April 21, 2015
Representative: Masao Iida, President and CEO
Business Overview: Planning, development, and provision of services and solutions utilizing AI and digital technologies.
Offices: Headquarters / Digital Product Company
- 11F, Ebisu First Square, 1-18-14 Ebisu, Shibuya-ku, Tokyo
AIX Company, Kyobashi Office
- 8F, WORK VILLA KYOBASHI, 1-13-1 Kyobashi, Chuo-ku, Tokyo
AIX Company, Hibiya Office
- 11F, Hibiya Mitsui Tower, 1-1-2 Yurakucho, Chiyoda-ku, Tokyo
URL: https://www.mcd3.co.jp/
"Kensetsu Site Series," "Green Site," and "Work Site" are registered trademarks of MCD Three Inc.
This enables direct use of "Work Site," a service that digitizes construction site management and coordination operations, from the "My Green Site" app. Site supervisors (Note 2) can start using "Work Site" immediately with a single tap, without the hassle of ID issuance or site selection.
Three Points That Make "Work Site" Easier to Use
Ready to Use with One Tap
Log in to "Work Site" with a single tap from the "My Green Site" app. The need to enter IDs and passwords is eliminated, allowing site supervisors to use "Work Site" stress-free on site.
No Need for Site Supervisor ID Issuance Procedures
Previously, using "Work Site" required a procedure to issue IDs for site supervisors. With this new function, an ID is automatically issued simply by downloading and starting to use the "My Green Site" app. The procedure to start using "Work Site" is significantly simplified.
Site Information Linked Seamlessly
Site information displayed in "My Green Site" is directly linked to "Work Site," allowing site supervisors and skilled workers to start their work on "Work Site" without the operation of selecting a site. They can smoothly engage in digitizing site operations, such as registering work content and recording participation in KY (Risk Prediction) activities (Note 3).
Future Outlook
MCD Three aims to foster "My Green Site" as a tool for daily use on construction sites, simplifying site ID and password management and contributing to operational efficiency. Starting with this SSO integration with "Work Site," the company plans to expand collaborations with other companies' services, aiming to realize an environment where various IT tools can be easily accessed with a single ID.
Note 1: Single Sign-On (SSO): An authentication mechanism that allows access to multiple different services and systems with a single login operation.
Note 2: Site Supervisor: A site manager directly responsible for commanding and supervising workers at a construction site. Appointed by the employer based on the Industrial Safety and Health Act.
Note 3: KY (Risk Prediction) Activity: A safety activity conducted before starting work, where workers identify potential hazards for the day's work and confirm/share countermeasures. It is a fundamental safety management technique routinely implemented on construction sites.
What is the Site Construction Management Service "Work Site"?
One of the offerings in the "Kensetsu Site Series" cloud services for the construction industry, this service promotes the digitalization of construction site management and coordination operations. By digitizing tasks previously done on paper or verbally, such as daily work reports and KY records, it contributes to improved operational efficiency and productivity on site.
https://www.kensetsu-site.com/series/worksite/
What is the Smartphone App for Skilled Workers "My Green Site"?
A smartphone application for skilled workers registered with Green Site. It seamlessly links with Green Site's data on construction systems, worker rosters, and entry/exit records, contributing to the efficiency and advancement of construction operations and enhancing skilled workers' engagement on site.
https://www.kensetsu-site.com/series/my_greensite/
What is the Labor Safety Document Creation Service "Green Site"?
A service within the "Kensetsu Site Series" cloud services for the construction industry that allows for the creation, submission, and confirmation of labor safety documents (Green Files) over the internet. It contributes to the efficiency and paperless processing of document tasks for both prime contractors and subcontractors, from the pre-construction phase to post-construction.
https://www.kensetsu-site.com/series/greensite/
Company Overview
MCD Three was established in July 2025 through the merger of Industry One Inc., MCDigital Inc., and MC Data Plus Co., Ltd. With the mission "To stay close to industry and continue to face social issues," the company combines the strengths of design, digital, and data from the three merged entities. By building an integrated operating model from business concept to service provision utilizing AI and digital technologies, it aims to maximize customer value.
Company Name: MCD Three Inc.
Date Established: April 21, 2015
Representative: Masao Iida, President and CEO
Business Overview: Planning, development, and provision of services and solutions utilizing AI and digital technologies.
Offices: Headquarters / Digital Product Company
- 11F, Ebisu First Square, 1-18-14 Ebisu, Shibuya-ku, Tokyo
AIX Company, Kyobashi Office
- 8F, WORK VILLA KYOBASHI, 1-13-1 Kyobashi, Chuo-ku, Tokyo
AIX Company, Hibiya Office
- 11F, Hibiya Mitsui Tower, 1-1-2 Yurakucho, Chiyoda-ku, Tokyo
URL: https://www.mcd3.co.jp/
"Kensetsu Site Series," "Green Site," and "Work Site" are registered trademarks of MCD Three Inc.
FAQ
How does this integration contribute to promoting DX in construction sites?
Site supervisors can access "Work Site" with a single tap from "My Green Site," eliminating the need for ID management and site selection, thus facilitating smoother digitalization of site operations.
How will the addition of the SSO function change site work efficiency?
With no need for ID issuance procedures and automatic linking of site information, site supervisors and skilled workers can start tasks immediately, enabling them to work stress-free.
What kind of service integrations does MCD Three aim for in the future?
Starting with the integration with "Work Site," the company plans to expand collaborations with other companies' services, aiming to create an environment where various IT tools can be easily accessed with a single ID.