[Construction Industry DX] 'Sakミル' Surpasses 3,000 Official Corporate Users. Accelerated Adoption Driven by 'High-Speed Development' that Caters to On-site Needs, Gaining 1,000 users in Just 5 Months.
The number of official corporate users for the cloud service 'Sakミル' for the construction industry has surpassed 3,000. PLEX Inc., the operator, achieved an increase of 1,000 companies in just five months since reaching 2,000, accelerating DX for small and medium-sized construction businesses with its strength in field-oriented, high-speed development.
📋 Article Processing Timeline
- 📰 Published: March 31, 2026 at 19:00
- 🔍 Collected: April 1, 2026 at 13:39 (18h 39m after Published)
- 🤖 AI Analyzed: April 22, 2026 at 03:21 (493h 41m after Collected)
The number of official corporate users of 'Sakミル,' a cloud service for the construction industry operated by PLEX Inc. (Headquarters: Chuo-ku, Tokyo; CEO: Shun Kurosaki), has surpassed 3,000 as of March 2026. This represents an increase of 1,000 companies in just five months since surpassing 2,000 companies in October 2025, with its 'overwhelming development speed' of monthly field-oriented function updates being highly supported.
Background of Growth: A Relentless Pursuit of 'Field Optimization' to Break Down Digitalization Barriers
'Sakミル' is an all-in-one service that connects the field, office, and management for small and medium-sized construction businesses with 5 to 50 employees. The significant increase in users was driven by numerous feature enhancements that greatly expanded the range of industries and company sizes it can provide value to.
In the five months since reaching 2,000 companies, the company has continuously implemented major updates to solve issues of 'form flexibility' and 'complex administrative processing' that hindered the transition from conventional Excel management and paper-based operations, all while maintaining usability that is 'easy to master even for those unskilled with IT.' In particular, the 'custom layout function for estimates and invoices' released in March 2026 has been a decisive factor for adoption, meeting the strong need to reproduce each company's unique format.
Three Key Evolutions of 'Sakミル' in the Last 5 Months
1. Dramatic Improvement in Form Creation Freedom (Custom Layout & Rounding Adjustment)
In addition to the conventional unified layout, a 'custom layout function' has been added, allowing free modification of the position of company seals, logos, and item arrangements. Furthermore, customization of consumption tax and amount rounding (rounding up, down, etc.), which differs for each company, is now possible, enabling a smooth transition to digitalization without changing traditional business customs.
2. Advanced Management Functions to Eliminate Rework in Administrative Tasks (Consolidated Billing & Master Data Integration)
A 'consolidated billing function' that combines multiple projects for the same customer into a single invoice and a one-click conversion from estimate to execution budget have been implemented. Additionally, the bulk import/export functions for data such as products, customers, and suppliers have been enhanced, significantly lowering the hurdles for migrating from other systems or performing large-scale data updates.
3. Expansion of Mobile Experience to Support 'Field Completion' (iPhone/Android App Support)
In addition to the browser version, official iOS and Android app versions have been released. This allows for more intuitive task management, photo storage, and schedule confirmation on-site, strongly supporting a work style of going directly to and from sites without returning to the office.
Testimonials from 'Sakミル' Adopting Companies
Here are some testimonials from companies that have achieved operational efficiency by utilizing 'Sakミル'.
・Electrical contractor A (1-10 employees)
"I can see their commitment to continuously improving usability, and I look forward to seeing what new features will be added. The cost is also low, so I plan to continue using it."
・Scaffolding and demolition contractor B (1-10 employees)
"The operation is simple, and many items can be selected from a dropdown menu, which has significantly reduced reporting errors from workers. Also, various documents like invoices can be created in a linked manner, making the process much faster and more accurate."