Star Equity Holdings Inc is a multi-industry diversified holding company. It operates in two segments: Building Solutions segment, through KBS, EBGL and TT, it services residential and commercial construction projects by manufacturing modular housing units, structural wall panels, permanent wood foundation systems, other engineered wood products, and supply general contractors with building materials; and Investments segment, which holds corporate-owned real estate, currently includes one manufacturing facility and the equipment for another manufacturing facility in Maine that it leases back to KBS and its manufacturing facility in Wisconsin that it leases back to TT. The company derives maximum revenue from Building Solutions Segment.