Sien Real Sp. z o.o.
Headquartered in Warsaw, Poland
Sien Real Sp. z o.o., acquired in 2025 by Ferrovial and Budimex, is developing a major data center campus in Warsaw’s metropolitan area. On a 45,000 m² site, construction of four buildings begins in 2027, supporting Europe’s digital infrastructure expansion with advanced, mission‑critical technology facilities.