to clean and
decarbonise the air
We create, develop and commercialise the breakthrough technologies needed for the transition to net zero.
WHO
WE ARE
CATAGEN creates and engineers the solutions that will accelerate the transition to net zero.
Our capabilities span green emissions testing, sustainable aviation fuel (SAF) production, hydrogen compression and a wider suite of ClimaHtech net-zero technologies powered by our patented e-reactor and high-temperature chemical engineering expertise.
OUR NET ZERO
TECHNOLOGIES
Catalyst Ageing
without an Engine
Decentralised Net
Zero SAF Production
SECURE YOUR SAF PIPELINE >
Static and Mobile
Hydrogen Compression
Biohydrogen, E-fuel & Other Net Zero Tech
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ARE LOOKING FOR?
INSIGHTS

CATAGEN Marks Four Years as Official Ducati Supplier in 2026, Strengthening Technical Partnership

What is Decentralised SAF?

CATAGEN Launches World First DAAAC Electric Reactor Using OMEGA Technology

CATAGEN named as a 2025 WIRED Trailblazer

PRESS RELEASE: CATAGEN Showcases UK Clean-Tech Innovation in India to Advance Hydrogen Compression and Sustainable Aviation Fuel Collaboration

PRESS RELEASE: CATAGEN unveils revolutionary ClimaHtech Hydrogen Compressor at Gastech 2025
FREQUENTLY
ASKED QUESTIONS
What is CATAGEN and what does the company do?
CATAGEN is a clean-tech innovation company developing technologies that accelerate the transition to net zero.
We deliver advanced Green Emissions Testing for OEMs to meet emissions legislation, and develop next-generation net-zero technologies through our ClimaHtech platform:
– ClimaHtech Green Flight: sustainable aviation fuel (SAF) production
– ClimaHtech Compress: hydrogen compression solutions.
What industries do CATAGEN work with?
CATAGEN works with partners across mobility, energy and industrial sectors through our Green Emissions Testing services, ClimaHtech Green Flight and ClimaHtech Compress.
- CATAGEN Green Emissions Testing supports automotive, heavy-duty, motorcycle, marine, non-road and industrial applications, as well as catalyst manufacturers, fuel developers and reformer catalyst programmes requiring controlled durability validation.
- ClimaHtech Green Flight works with the airlines, airports, feedstock and renewable energy providers to support the production and deployment of sustainable aviation fuel (SAF).
- ClimaHtech Compress works with hydrogen compressor technology providers and industrial operators, including heavy-duty and quarry applications, requiring efficient hydrogen compression solutions.
What is Green Emissions Testing at CATAGEN?
Green Emissions Testing at CATAGEN is a suite of advanced emissions testing, catalyst ageing and durability services delivered using our electrically driven reactor technology (OMEGA Technology). It enables highly controlled, engine-representative testing without the need for a full engine or vehicle system.
What is ClimaHtech and how is it related to CATAGEN?
ClimaHtech is CATAGEN’s net-zero technology platform.
It is the brand under which CATAGEN develops and delivers advanced net-zero technologies, including sustainable aviation fuel (ClimaHtech Green Flight), hydrogen compression (ClimaHtech Compress) and other emerging technologies. The suite of ClimaHtech technologies is powered by CATAGEN’s OMEGA technology and expertise in chemical reactions and thermodynamics.
Does CATAGEN offer support with emissions compliance?
Yes, CATAGEN Green Emissions Testing helps OEMs meet emissions compliance, producing repeatable, accurate emissions data to meet new emissions legislation. CATAGEN Green Emissions Testing is certified by recognised certification bodies including VCA, Applus IDIADA, UTAC, TÜV SÜD, TÜV Hessen, Luxcontrol, CETOC, ECO Certificazioni and ATHL.
What is CATAGEN's OMEGA Technology?
OMEGA is CATAGEN’s proprietary electrically driven synthetic gas reactor.
In Green Emissions Testing the OMEGA Technology replicates real-world catalyst operating conditions with high precision, enabling rapid, repeatable durability testing with reduced fuel use and emissions.
With over 200,000 hours of commercial run-time, the team have applied their expertise in thermodynamics, chemical reactions and the OMEGA technology for decentralised SAF production and biohydrogen production.
Where is CATAGEN located?
CATAGEN is headquartered in Belfast, Titanic Quarter, Northern Ireland, supporting international partners across Europe and beyond.
CATAGEN
Channel Commercial Park,
Unit 5 Elmbank,
Queens Rd, Belfast
United Kingdom, BT3 9DT
028 9045 5100
info@catagen.com
CONTACT US
Let’s drive innovation together
Emissions compliance
SAF Production
Hydrogen Compression
Titanic Quarter Belfast
+44(0)2890455100
ABOUT CATAGEN
As aftertreatment emissions specialists CATAGEN delivers advanced solutions that have a direct impact on our cities and air quality. Reducing tailpipe emissions remains one of the biggest challenges facing the global mobility industry.
CATAGEN is currently using its specialist emissions expertise to further its purpose “to clean and decarbonise the air” by developing new products to impact Net Zero and climate change targets.
% powered by renewable energy
tonnes of CO2 displaced from the environment
trees planted in 2021 through SQSTR
CATAGEN partners with more than 20 blue-chip companies

















