Okumura Corp conducts civil engineering projects for railways, roads, power-station facilities, water systems, and others. In addition, it constructs houses, public facilities, medical facilities, and office buildings. The company combines technicians, administrative personnel, and technology to supply energy-efficient solutions and modernized structures. Okumura has three operating segments: civil engineering, architectural construction (which contributes the majority of total revenue), and real estate. Its expertise covers the entire project, including planning, design, construction, operation, and maintenance. The majority of sales are derived from Asia, and the company works with customers to create customized solutions.