Headquartered in Tokyo, Japan, SpiderPlus & Co. is an information and... Headquartered in Tokyo, Japan, SpiderPlus & Co. is an information and communication technology (ICT) firm established in 1997. The company's core offering is SPIDERPLUS, a dedicated application for drawing and site management tailored for the Japanese construction sector. Beyond its ICT focus, SpiderPlus & Co. also provides engineering services, notably including thermal insulation work. The organization transitioned from its former identity as Regolith, Inc. to SpiderPlus & Co. in September 2020.