We build intelligent cooling systems designed with foresight and precision, delivering reliability and performance for the world's most demanding data environments.
Applied precision and experience
Apx operates with a model that's rare in our industry. We combine the scale, strength and stability of a global manufacturing group with the agility and focus of a specialist cooling team.
Internal and external heat rejection
Internal and external heat rejection
Our systems are engineered for real environments, real constraints and real performance demands. That's why operators, consultants and commissioning teams trust us in mission-critical settings.
40+ inhouse R&D engineers
4,000 parts delivered in 48 hours
How we work
Engineering in partnership
Decades of shaping mission-critical cooling have refined how we think and how we work. That depth of experience strengthens our judgement – and that judgement drives the precision our partners rely on.
We specialise in designing out issues before they occur. Anticipating constraints. Engineering systems that remain stable even as conditions shift.


What we do
Tailored cooling solutions
Our approach is engineered specifically for each project. We build specialist project teams around your requirements, working closely with clients, consultants and commissioning teams from day one.
Every solution is shaped by real operating conditions, balancing performance, resilience and efficiency to support critical infrastructure where uptime matters most.
Proven in real environments
A selection of projects where Apx has delivered cooling systems in mission-critical data centre environments.
Semiconductor Business
"The quality of these units is evident. This project has set a new benchmark for our global infrastructure standards, partly down to your consistent understanding"
Operations Lead
Colocation Japan
6 April 2026ProjectsDry Cooler
"Cooling our multi-megawatt generator sets required a robust and highly scalable dry cooler solution. The technical design and deployment for this project met every one of our rigorous criteria."
Senior Design Engineer
Colocation Brussells
1 April 2026ProjectsChiller,CRAH
"We have achieved our design PUE despite fluctuating rack densities across our white space. It is rare to find a partner that can work with high-performance requirements that are constantly changing yet deliver outstanding results year after year."
CTO
Internal heat rejection systemsWe design internal cooling systems for high-density, high-availability data environments where control and predictability are critical.
Precision cooling at the point of load
Our solutions support in-row, in-rack and room-based configurations, engineered to manage airflow, heat and pressure within the white space. Every system is designed around the operating conditions it will face, ensuring stable performance, serviceability and long-term reliability.
By focusing on real load profiles and real site constraints, we deliver internal cooling that integrates cleanly with the wider infrastructure and performs as intended from day one.
External heat rejection systemsWe design external heat rejection systems for high-density, high-availability data environments where resilience and consistency are critical.
Cooling designed for external conditions
Our external heat rejection systems are engineered to operate reliably beyond the white space, managing heat removal across varying environmental conditions. Each system is designed around the climate and site constraints it will face, ensuring stable performance, serviceability and long-term reliability.
By accounting for real site conditions from the outset, we deliver external cooling that integrates cleanly with the wider infrastructure and performs as intended from day one.
From design to deployment
Our approach brings engineering foresight into every stage of delivery, from early design decisions through to development and deployment, ensuring systems are shaped around real world conditions and perform exactly as intended in live data environments.
01
Design

Every project begins with a deep understanding of the environment, constraints and performance demands that matter most.
02
Develop

Engineered, built and tested with precision, translating design intent into reliable, production-ready systems.
03
Deliver

Delivered, installed and commissioned with precision, supported by in-house engineering teams and service coverage across Europe.
Cooling, engineered for what's next
Apx brings experience, precision and performance together to support the next generation of data environments.
CRAH – Computer Room Air Handler
Your CRAH product content here.
CCU – Close Control Unit
Your CCU product content here.




