Est. 1840 · Asia Pacific
Kajima
3-1 Motoakasaka 1-chome, Minato-kuTokyo, Japan
A⁴CSEL - a GC that automated its own iron. Unmanned rollers, dozers, dumps, and excavators on Japanese dams, run from a room in Minato.
Known valuation
Public · TYO: 1812Public contractor. A4CSEL is in-house.
Known clients
Publicly named customers on jobs - not a complete list.
- MLIT Naruse Dam
- Japan Water Agency (Koishiwara Dam)
- NEXCO Shin-Meishin
Works with
Partners not in the file yet. If you know who they build with, tell Future of Built. The form is below.
Awards
No industry award in the file yet - BuiltWorlds, Constructech, CES, RBR50, TIME. Accelerators sit under Works with.
Intro
Do not ping the vendor cold. Tell us the trade. We send it to Future of Built and Kajima.
Notes
2026-05
A⁴CSEL unmanned iron still placing CSG and compacting Shin-Meishin fill
A GC that automated its own fleet. The IT pilot is in Minato.
