Nikken is a comprehensive professional consultancy group providing one-stop service for a large variety of planning, design and management.NIKKEN SEKKEI LTD., an architectural company, provides design, engineering, management, consulting, and research and development services in Japan and internationally. It offers urban planning and design, architectural design, and structural engineering services, mechanical, electrical, and plumbing engineering services, civil engineering and workplace design services, interior design services for hotels, offices, academic buildings, ships, airports, and health institution.