Cach Inc
AcquiredTokyo, JP · 1 known investors
CACH develops IoT-based measurement and monitoring systems for construction and civil engineering, including battery-free sensors and communication devices (ST-COMM) that send displacement, stress, and load data to a cloud server for viewing via a web app. Its products include a multi-point vibration monitoring system ("Yure Watcher") and an anomaly-detection system for temporary construction materials, used for bridge inspection and construction-site monitoring in Japan.
Also known as CACH Inc. · CACH株式会社 · カック
Founders & leadership
Investors · 1
Company profile
researched Aug 2026CACH Inc. (CACH株式会社, read "kakku") is a Japanese IoT company that develops devices, systems and cloud/web software for monitoring structures and construction-site conditions. Its core offering is a wireless strain/displacement monitoring approach built around the ST-COMM communication unit: sensors and an ST-COMM device attached to a structure transmit measured data such as deformation, stress and load to a cloud server, where results can be reviewed through a web application and on smartphones without requiring an external power supply at the measurement point.
The product line covers three main areas. "Yure Watcher" (揺れウォッチャー) is a multi-point vibration monitoring system using accelerometer-based compact IoT units; vibration data is overlaid on site drawings in a web application so that vibration conditions across an entire construction site can be visualised and targeted countermeasures applied. A second system detects anomalies in heavy temporary construction materials — specifically strut (切梁) axial force — and automatically notifies managers. A related application connects IoT hardware to hydraulic jacks on construction sites, automatically measuring hydraulic output that holds earth-retaining walls in place and sending alert e-mails when abnormalities are detected. The company also describes its business in terms of system development and device development, and positions its mission around peace of mind for people and society.
Business model
CACH develops and supplies its own IoT hardware (sensors and the ST-COMM communication device) together with cloud-based data collection and web application software for viewing measurement results, and has offered systems jointly with partners as evaluation versions before full commercial release.
Traction
Systems were trial-deployed with some customers before general availability: the hydraulic jack monitoring system was in test use at active construction sites, the strut anomaly-detection system was provided as an evaluation version with Marubeni and Marubeni Construction Material Lease, and Yure Watcher was trialled with a subset of customers before reservations for full provision opened in March 2021. The technology has been covered in Japanese construction trade media (Nikkei Construction, Kentsu Shimbun, Kensetsu Tsushin Shimbun) and in Inspection Engineering magazine, and presented at the Japan Society of Civil Engineers 2021 annual meeting in two sessions.
Latest developments
On 2024-12-11 the company announced that CACH Inc. had joined Soki Co., Ltd. (株式会社ソーキ). Before that, its most recent publicised activity was participation in a virtual online exhibition for design/manufacturing, AI, IoT and DX in March 2022, showing Yure Watcher and hydraulic jack (strut axial force) monitoring.
▸Full profile — market position, technology, go-to-market, geography, history
Market position
CACH describes itself as a technology venture aiming to be an IoT company that changes the world from Japan; its monitoring technology has been vetted and listed in the Japanese government's inspection-support technology performance catalogue as a measurement and monitoring technology enabling soundness diagnosis in bridge inspection without close visual examination.
Technology
Sensors combined with the ST-COMM wireless communication unit are attached to structures and transmit displacement, stress and load data to a cloud server for review in a web application or on a smartphone; the approach is listed in Japan's Ministry of Land, Infrastructure, Transport and Tourism inspection-support technology performance catalogue as a technique requiring no power supply at the measurement point (technology number CM010003-V0020). The Yure Watcher system uses accelerometer-based compact IoT units at multiple points and displays vibration data overlaid on site drawings. Other configurations connect IoT devices to hydraulic jacks and to temporary strut members to measure hydraulic pressure and axial force and issue automatic alerts.
Go-to-market
Direct promotion through industry trade shows and exhibitions (Hannover Messe 2019 in Germany; CSPI-EXPO construction and surveying productivity exhibition at Makuhari Messe in 2021, shown in a rental equipment partner's booth; an online design/manufacturing, AI, IoT and DX virtual exhibition in spring 2022), technical conference presentations (Japan Society of Civil Engineers, 2021) and industry seminars, trade-press coverage, and joint provision of systems with corporate partners such as Marubeni and Marubeni Construction Material Lease. Inclusion in the Ministry of Land, Infrastructure, Transport and Tourism inspection-support technology catalogue supports adoption in statutory bridge inspection.
Construction and civil engineering contractors and infrastructure owners in Japan, including bridge inspection under statutory requirements, urban construction sites concerned with vibration, and users of heavy temporary construction materials such as struts and earth-retaining systems.
Geography
Headquartered in Tokyo, Japan — earlier releases list Koto-ku, Tokyo, and the site's access page gives 4-4-6 Oi, Shinagawa-ku, Tokyo (Crystal Building 4th floor). Activity described is centred on Japanese construction sites and infrastructure, with international exposure via exhibiting at Hannover Messe in Germany in 2019.
History
Public milestones begin with 2019 media coverage of its wireless strain monitoring system and an exhibit at Hannover Messe in April 2019, followed by Japanese trade coverage in October 2019 of the ministry's plans to use non-close-visual measurement and monitoring technologies in diagnosis. In July 2020 the strut anomaly-detection system was launched jointly with Marubeni and Marubeni Construction Material Lease, and in August 2020 the monitoring system was listed in the ministry's draft inspection-support technology performance catalogue. In February 2021 remote hydraulic jack monitoring was released, and in March 2021 the Yure Watcher multi-point vibration monitoring system was announced. In December 2024 the company announced it had become part of Soki Co., Ltd.
Compiled by commissioned research from 6 cited public sources — announcements, filings, and press listed under research sources below.
Timeline · 9
launches, deals, and filingsA company notice announced that CACH Inc. had joined Soki Co., Ltd. (株式会社ソーキ), moving to a new stage.
CACH exhibited at the Design/Manufacturing, AI, IoT and DX virtual online exhibition, Spring 2022, presenting Yure Watcher and hydraulic jack (strut axial force) monitoring.
Two presentations at the JSCE 2021 meeting covered application of a multi-point vibration monitoring system to on-site vibration suppression and evaluation of urban construction vibration impacts using wireless vibration devices.
CACH exhibited at the Construction and Surveying Productivity Improvement Exhibition (CSPI-EXPO), 12-14 May 2021 at Makuhari Messe, in the Nikken rental indoor booth B-60.
CACH announced a multi-point vibration monitoring system using accelerometer-based IoT devices that overlays vibration data on site drawings in a web application to visualise vibration across a construction site; already trialled with some customers, with reservations for full provision opened.
CACH began providing a system that connects IoT devices to construction-site hydraulic jacks to automatically measure output hydraulic pressure holding earth-retaining walls and send alert e-mails to managers; already trial-deployed at active construction sites and listed in the MLIT technology catalogue.
After applying to the Ministry of Land, Infrastructure, Transport and Tourism's programme for inspection methods not relying on close visual inspection and passing technical verification, the CACH monitoring system was listed as a measurement and monitoring technology enabling soundness diagnosis in statutory bridge inspection, described as allowing displacement, stress and load data to be checked by smartphone without a power supply (technology number CM010003-V0020).
Marubeni Corporation, CACH Inc. and Marubeni Construction Material Lease began jointly providing an evaluation version of CACH's IoT-based strut (切梁) anomaly detection and automatic notification system for axial force monitoring of heavy temporary construction materials, installed on struts for wireless anomaly-detection monitoring at civil and building sites.
CACH exhibited at Hannover Messe in Germany (Hall 13, Stand D18/1), 1-5 April 2019.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
▸Research sources · 6
primary sources listed
- Cach Inccach-inc.com · web
6 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Cach Inc do?
- Tokyo-based IoT company building wireless sensing and monitoring systems for construction sites and civil infrastructure.
- Who are Cach Inc's investors?
- Cach Inc's investors include Colopl Next.
- Where is Cach Inc headquartered?
- Cach Inc is headquartered in Tokyo, JP.