Opus International Consultants Limited, a multidisciplinary consultancy, provides asset development and management solutions for infrastructure facilities in New Zealand, the United Kingdom, Australia, and North America. It offers a range of services in the land transportation sector comprising bridge and civil engineering, network management, pavement and traffic engineering, road safety, traffic modeling, transportation asset management, transportation infrastructure design, transportation planning and engineering, and travel demand management to road and rail controlling authorities, transportation planning agencies, private developers, and transport operators. The company also provides architecture and interior design; civil, structural, and geotechnical engineering; building services engineering; fire engineering and building compliance; facilities and property management; property acquisition and planning assistance; project management; landscape design; and sustainability and asset management services for the building sector. In addition, Opus International Consultants offers wastewater treatment, water asset management, water resources management, water treatment, pipe network reticulation, environmental business management, and environmental training services to the water sector. Further, it provides compliance services, environmental planning, facilities and property management, heritage, infrastructure asset management, maritime engineering, project management, and risk management services to infrastructure clients. The company was founded in 1885 and is based in Wellington, New Zealand. Opus International Consultants Limited is a subsidiary of Opus International (NZ) Limited.