NAGAOKA International Corporation is one of the world’s leading engineering and profile wire screen manufacturing firms providing total solution for groundwater intake and groundwater treatment as well as petrochemical process equipment in the most effective and environmentally friendly manner.

In the water field, NAGAOKA’s technologies accumulated through rich and long experience are solving various water problems and are assisting sustainable supply of safe drinking water.

NAGAOKA’s effective groundwater intake technology using our core product, Wedge Wire Screen, offers optimum performance in shallow wells, infiltration galleries, underground dam etc. and is standardized in Japan by adoption in “Waterworks Design Instructions (Ver. 2012)”.

Our ecological groundwater treatment system, “CHEMILES” removes high concentration of Iron, Manganese, Ammonia Nitrogen, arsenic, etc. in groundwater at extremely higher speed than conventional rapid sand filtration without injecting chemicals.

NAGAOKA’s groundwater intake technology and “CHEMILES” are successful not only in Japan but also in China and South-East Asian countries and expanding globally.

Now Nagaoka is moving into the field of seawater intake. This new technology called HiSIS (High-speed seabed infiltration system) will be the next success in desalination, power and industrial plants as economical and earth conscious solution for water shortage problem.

Head office and main factory are located in Osaka. Outside Japan, NAGAOKA operates two subsidiaries in Beijing and Dalian, China. NAGAOKA has been growing globally and our leading and innovative technologies are contributing to the world

GHD is one of the world’s leading professional services companies operating in the global markets of water, energy and resources, environment, property and buildings, and transportation. We provide engineering, architecture, environmental and construction services to private and public sector clients.

Established in 1928 and privately owned by our people, GHD operates across five continents – Asia, Australia, Europe, North and South America – and the Pacific region. We employ more than 8500 people in 200+ offices to deliver projects with high standards of safety, quality and ethics across the entire asset value chain. In alignment with the global demands of water, energy and urbanisation, our aim is to exceed the expectations of our clients and contribute to their success.

GHD provides sustainable water solutions, covering every element of the water cycle for urban, rural and industrial water applications.

We are known for our leadership in desalination, nutrient removal, integrated water management, risk management, flood management and modelling as well as asset management.

We continue to expand our reach and deepen the footprint of our services around the world.