Atom is a Chiba prefab company serving the Kanto area with temporary housing, site offices, unit houses and temporary toilets for sale or lease. Its public site describes support from proposal through delivery and installation, with standard low-cost prefab buildings through more residential-looking deluxe types.

It is relevant for buyers needing functional temporary or small modular space, especially for construction, office, storage or site welfare uses, while residential use and long-term building-code matters should be verified early.