Europe's Leading Ecosystem for Two-Phase Cooling Technologies
A unique innovation cluster in Belgium, combining space-grade expertise with ground applications. Together, we accelerate the deployment and adoption of these 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 Belgium.From space to computing, we deliver high-efficiency thermal management solutions across multiple markets leveraging phase-change (vaporization + condensation) technology.
Where is it located?
Two Leading Companies, One Vision
EHP's decades of space-proven two-phase expertise combine with Calyos' 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 We Stand 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 Belgium, at the heart of Europe's industrial and innovation ecosystem
Full Value Chain
From design to industrial deployment, all capabilities in one region
Multi-Market Reach
From space to automotive and computing, complete cross-sector acceleration
Turnkey Integration
Enable faster time-to-market with turnkey integration support and custom validation tools
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
Military aircraft, defense electronics, unmanned systems & mission-critical avionics.
All rights reserved.