INTEWA GmbH (1 CO) develops innovative and fool-proof ideas for infiltration of rainwater as well as for rainwater and grey water harvesting. INTEWA uses her expertise and innovation to direct controll heavy rainfalls and save water. INTEWA's goal is a global perspective contribution to environmental protection. Since its establishment in 1993 INTEWA has set new standards with powerful products and systems as a technology leader. The core products are:

  • The most efficient and patented PURAIN rainwater harvesting filter series
  • The most economic DRAINMAX infiltration and attenuation tunnel 
  • The most efficient water supply series RAINMASTER

SFC Umwelttechnik GmbH (2 CB) was founded in 1999 and is a company group active in the field of environmental engineering, especially in water and wastewater treatment and energy, with offices in Austria (Salzburg), Poland, Czech Republic, India, China, Vietnam, Egypt, Dubai and with a worldwide sales network.

Its main services include design and supply of water and wastewater treatment processes as well as energy production processes for large-scale installations in municipalities and industries.

ASIO, spol. s r.o. (3 CB) was established in 1993 as a Czech engineering supplies company with international operations. The company is involved in the development, production, and delivery of technologies for wastewater treatment, water treatment and air treatment. The wide range of water management products that it offers are employed in the treatment of wastewater from family houses, villages, towns, hospitals, and in various branches of industry. ASIO, spol. s r.o. is represented in 32 countries, through a wide network of subsidiaries and representatives. Besides its quality production base, it has built a network of sales and service centers not only in the Czech Republic, but also in a number of European countries. All these closely cooperating companies are associated in the ASIO Group. ASIO has developed one important AQUALOOP component, the HEAT exchangers. Furthermore ASIO will be responsible for the distribution of the AQUALOOP system in Eastern Europe.

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The possibility to save drinking water has enhanced strongly the last years.

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A rainwater filter cleaning itself by the principle of the hydraulic jump.

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The DRAINMAX tunnel infiltration system: The only plastic trench with flushable  ground.

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The optimized water pump station for rainwater and greywater utilization in every planned construction.

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