Toa (Construction) 

TOA Corporation, a long-standing company founded in 1908 and based in Tokyo, Japan, delivers a comprehensive spectrum of construction and engineering services. Formerly known as TOA Harbour Works Co., Ltd. until its name change in 1987, its operations extend across Japan, Southeast Asia, and other international markets, operating through distinct Domestic Civil Engineering, Domestic Architectural Building, and Overseas segments. The company's expertise encompasses the entire project lifecycle, from planning, design, and supervision to execution and contracting, for both civil engineering and architectural undertakings. This includes specializing in maritime infrastructure, such as dredging and land reclamation, alongside extensive land preparation. TOA also plays a significant role in urban, regional, and oceanic development through planning, design, oversight, and contractual work, complemented by geological assessments and surveying. The firm constructs and maintains a diverse array of infrastructure, spanning transportation networks (roads, railways, ports, airports), utilities (water and sewer systems), public buildings (government offices), and environmental facilities (waste disposal and treatment plants). Furthermore, TOA engages in equipment and property leasing, constructs power generation facilities, and provides specialized consulting services.