Our Business

Siet’s member companies design, manufacture, market and provide maintenance to facilities for:

  • Purification
  • Pollution control
  • Filtration
  • Disinfection
  • Desalinization
  • Analysis

Innovation, at the core of our business

Water treatment equipment manufacturers are constantly working to improve technologies by devoting significant investments to innovation and research.
The technologies developed for water treatment ensure safety for the consumer and are environmentally friendly.


Solutions to meet all needs

Water treatment equipment manufacturers offer their solutions, from the simplest to the most complex, in France and throughout the world to:

  • Companies that design and build drinking water production and wastewater treatment plants,
  • Municipalities and operators for the upkeep of facilities,
  • Builders and managers of swimming pools and spas,
  • Industrialists for the production of process water (pharmaceutical, cosmetics, agro-food industries, etc.) and ultra-pure water (electronics industries, etc.),
  • Industrialists for the treatment of cooling water and effluents (refineries, chemical industries, thermal power plants, paper mills, hospitals and pharmaceutical industries, agro-food industries, etc.),
  • NGO’s working in Africa, Asia, and South America to supply small units for the production and analysis of drinking water, etc.