Europe's Leading Ecosystem for Two-Phase Cooling Technologies
A unique innovation cluster in Wallonia, combining space-grade expertise with ground applications. Together we accelerate deployment of advance adoption of technologies across many applications.
90+
Patents
37
Years of History
100+
Engineers
What is the Two-Phase Valley?
Two-Phase Valley is the world's leading ecosystem for two-phase cooling technologies, leveraging the combined expertise of EHP and Calyos to create a unique innovation cluster in Wallonia, Belgium.From space thermal management to data center cooling, we deliver high-efficiency thermal solutions across multiple markets using phase-change fluid technology.
Where is it located?
Two Leading Companies, One Vision
EHP's decades of space-proven two-phase expertise meets Calyos's industrial-scale ground applications, creating a single ecosystem where aerospace-grade innovation accelerates real-world thermal solutions across every market.
The world-leading space thermal control specialist with 37 years of zero-failure heritage, 10,000+ products in orbit, and full in-house design-to-delivery capabilities.
The ground applications pioneer translating aerospace-grade two-phase cooling into scalable solutions for data centers, e-mobility, and energy systems.
Our Ecosystem
Our Two-Phase Valley is supported by a network of leading research centers, universities, and organizations across Wallonia and Europe.
Why Our Two-Phase Valley Stands Out
Industrial Reality
Two established companies delivering real two-phase solutions across multiple markets
Talent Concentration
100+ dedicated engineers & technicians focused on two-phase technology
Strategic European Hub
Based in Wallonia, at the heart of Europe's industrial and innovation ecosystem
Full Value Chain Mastery
From design to industrial deployment, all capabilities in one region
Multi-Market Reach
From space to automotive and data centers for cross-sector acceleration
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Markets We Serve
Space
Satellites, human spaceflight, space stations, new space & constellations
Computing
Data centers, gaming, personal computing, HFTs & cryptocurrency mining
E-Mobility
Passenger vehicles, aeronautics, goods vehicles, OHVs, motorsport, air & sea
Energy
Solar and wind farms, BESS & EV charging infrastructure
Aero & Defense
Solar and wind farms, BESS & EV charging infrastructure
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