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プレックス

addressTokyo/Chuo-ku/6th floor, Kyodo Building, 3-2-4 Nihonbashi Honmachi, (in front of the Bank of Japan)
phone03-6682-1381
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last updated:May 15, 2026
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[Case Study of Sakumiru] Interior Construction Contractor

New hiring made possible through systematization! Breaking free from the limitations of Excel operations, moving towards a future of 'growing together with Sakumiru'.

We would like to introduce a case study of the implementation of "Sakumiru" for interior construction contractors. The company experienced a doubling of construction projects within a year, leading to complex order details such as additional orders for completed projects and splitting orders for the same site, resulting in a situation where they could not accurately grasp the details. After the implementation, they have been able to manage project management and schedule management together, making the process dramatically easier. 【Case Overview】 ■ Challenge: Feeling the limitations of traditional Excel management as projects doubled ■ Deciding Factor for Implementation: Clear and attentive support ■ Effect: Project management and schedule management are linked, dramatically improving management efficiency *For more details, please download the PDF or feel free to contact us.

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[Case Study of Sakumiru] Electric and Communication Construction Contractors

If it's Sakumiru, it's okay if it "doesn't work"! Introducing tools with a low barrier to entry and getting used to them is the shortcut to digitalization.

We would like to introduce a case study of the implementation of "Sakumiru" for electrical and communication construction contractors. The company previously wrote out a list of projects on a whiteboard and managed schedules and employee availability on a separate whiteboard by hand. As a result, there was no way to check employee schedules while out of the office, necessitating a return to the office for confirmation. After the implementation, they were able to digitize photos and documents to manage information by project, making it easier to search for information. [Case Overview] ■ Challenge: Unable to schedule while out of the office due to whiteboard management methods ■ Deciding Factor for Implementation: Cost-effectiveness ■ Effect: Transition to data management eliminated paper distribution, improving convenience and information security *For more details, please download the PDF or feel free to contact us.

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[Case Study of Sakumiru] Air Conditioning Contractor

We will introduce examples of features that could not be realized despite enormous costs, but were achieved inexpensively!

We would like to introduce a case study of the implementation of "Sakumiru" for air conditioning construction contractors. In the company, it was necessary to submit a report with photos to prove the completion of the work, and there were many cases where submissions from partner companies were delayed, or where the number of sites was too high to create reports, leading to a backlog. The product was adopted because it has a solid set of functions for reports, estimates, and customer management, and it provided peace of mind in terms of pricing. [Case Overview] ■ Challenges - The workload for creating reports was enormous - Overtime increased at the end of the month ■ Effects - Functions that could not be realized despite enormous costs were achieved at a low price *For more details, please download the PDF or feel free to contact us.

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[Case Study of Sakumiru] Water Supply and Drainage Sanitary Equipment Contractor

The deciding factor for the introduction was its user-friendly, simple operability and cost-effectiveness!

We would like to introduce a case study of the implementation of "Sakumiru" for plumbing and sanitation equipment contractors. The company had been holding monthly meetings for everyone to gather, but it was often difficult to coordinate schedules. They were looking for a tool that would allow everyone to easily share information. They decided to implement our product because it is user-friendly for the field staff and can be used for a long time. 【Case Overview】 ■ Challenge: Looking for a tool that allows everyone to share information and eliminate analog management. ■ Deciding Factors for Implementation: Low monthly cost and ease of use. *For more details, please download the PDF or feel free to contact us.

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[Case Study of Sakumiru] Water Supply and Drainage Pump Construction Contractor

Migration from FileMaker to Sakumiru! Achieving centralized information management and cost reduction simultaneously.

We would like to introduce a case study of the implementation of "Sakumiru" for water supply and drainage pump construction contractors. The company had been building a system using FileMaker with the aim of managing project management and digitizing schedules, as well as linking estimates and invoices to projects. However, due to a lack of time, they were unable to realize this. After implementation, they have been able to operate by linking all information to projects. 【Case Overview】 ■ Challenge: Centralized information management, high monthly costs ■ Deciding Factor for Implementation: Low monthly fees ■ Effect: Achieved centralized information management and efficiency with user-friendly features *For more details, please download the PDF or feel free to contact us.

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[Case Study of Sakumiru] Renovation Contractor

No need for phone calls to confirm the schedule! The user-friendly operation is appealing to everyone.

We would like to introduce a case study of the implementation of "Sakumiru" for construction contractors. The company faced challenges in creating process management due to the lack of highly skilled personnel, which increased the burden on some staff members. To address this issue, they considered introducing a tool instead of securing highly skilled human resources. After the implementation, all team members' schedules could be viewed remotely, allowing for schedule adjustments even while on-site, eliminating the need for phone calls to confirm schedules. [Case Overview] ■ Challenge: Moving away from an outdated existing system ■ Deciding Factor for Implementation: Low cost and user-friendliness ■ Effect: Improved operational efficiency through accurate information sharing on-site *For more details, please download the PDF or feel free to contact us.

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