The professional of research and plan services of the hydrology and geotechnics.

KAT Oy has been founded in the banks of the big rivers of North Finland and belongs to experts of hydrology and geotechnic industry. The services of the KAT Oy are surveys and soil investigations of the waters and shore areas and and several kinds of planning services like hydraulic modelling and dredging plans. All the services can be produces for large project or small targets as well.

Kemijoki Aquatic Technology Oy (KAT Oy), which is a subsidiary company of Kemijoki Oy, is founded in 1999 to sell products and special skills of results research and development of Kemijoki Oy. Kemijoki Oy is one of the leading companies in hydropower, hydrographical surveying and construction modelling in Finland.