Sireg Hydros

Sireg Hydros is a company of the Sireg Group which, for over thirty years, has been designing and manufacturing water treatment plants - primary, process and waste water - with all the most advanced technologies for applications in the most diverse civil and industrial sectors, in Italy and worldwide. Committed to constant research, it builds plants powered by alternative energy sources, such as solar energy; it is a leading partner in some sectors at the forefront of technological innovation, such as fertigation; it actively participates in major international cooperation projects in developing countries.




is an Italian company specialized in the fields of Geotechnics and Civil Engineering.

Founded in 1936 by Cavaliere Emilio Blanc as SIREG S.p.A. is today a point of reference for designers and public and private companies of the sector in Italy and around the world.

At its historical plant in Arcore (MB), SIREG GEOTECH produces a range of highly specialized products, unparalleled on the market, in thermoplastic, thermosetting and composite fibers of glass and carbon, both standard and customized. Applications range from the reinforcement and consolidation of weak or landslide soils, as part of the construction of underground excavations, to the strengthening of concrete reinforcements and restoration of damaged infrastructures and civil buildings.

Since 2005, the company has been led by Sonja Blanc, CEO, who represents the third generation of the founding family. Since her establishment, the entrepreneur has embarked on a path of generational, managerial and strategic renewal that has marked the transition from tradition to innovation. In 2015, the Geotechnical and Civil Engineering Division of SIREG S.p.a. became SIREG GEOTECH S.r.l.

Today, in SIREG GEOTECH, high-profile professionals work, five languages are spoken fluently, and customers are followed from the projects to the construction sites. Particular attention is paid to the theme of sustainability of processes-products, starting from the observation of market changes and customer needs.

Our Team

Our team is made up of highly specialized and competent people with great enthusiasm and professionalism


SIREG HYDROS is part of the SIREG GROUP which also includes:

SIREG GEOTECH, a company operating in the field of Geotechnics and Civil Engineering

SIREG POLYVINYL s.r.l., manufacturer of PVC calendered sheets for the traction and stationary electric battery sector

SIREG H3O, a designer and manufacturer of complex industrial design products


Projects & References

2020 - R.O. plants for process fluids treatment


2016 - R.O. Desalinator Revamping for cruise ships

SS Costa Allegra & SS Costa Classica, Italy

2019 - Brackish Water Desalinator cap. 240 tons/day for Tourist Resort