CATAGEN, a Net Zero technologies company, has been listed on The Deloitte Fast 500 list for Europe, the Middle East, and Africa (EMEA).
The Fast 500 is an objective industry ranking that highlights the fastest growing and most innovative technology companies across EMEA.
CATAGEN are delighted to announce that we have placed number 151 out of 500 in The Deloitte EMEA Technology Fast 500.
The ranking is determined from applications to the Deloitte Technology Fast 50 programmes across EMEA, and winners are awarded based on their revenue growth percentage over a 3-year period. Last Year, CATAGEN was named the 5th fastest-growing tech companies in Ireland by the 2024 Deloitte Technology Fast 50 Awards—its fifth listing since 2019.
CATAGEN’s success stems from its unique combination of disruptive technologies and a proven track record in the commercialisation of green tech. It began with green emissions testing for the automotive sector, helping manufacturers meet stringent tailpipe regulations while setting new sustainability benchmarks. Today, this technology serves over 10 industries globally, and CATAGEN is a development partner to some of the world’s largest automotive OEMs.
Building on this foundation, CATAGEN developed ClimaHtech, an integrated platform of advanced climate technologies designed to decarbonise industries. ClimaHtech includes bio-hydrogen from waste biomass (BIOHGEN), synthetic e-fuel / SAF production (E-FUEL GEN), and hydrogen compression (COMPRESSOR). These innovations address hard-to-abate sectors such as aviation, maritime, and heavy industry, offering sustainable alternatives to fossil fuels.
Together, CATAGEN’s technologies exemplify the company’s holistic approach to driving decarbonisation and supporting the global transition to net zero.
The Deloitte Fast 500 EMEA celebrates the achievements of pioneering founders and high-growth companies that are shaping the future of their industries.
Dr. Andrew Woods, CATAGEN CEO and Co-Founder said;
“This recognition from Deloitte is not just a marker of growth, it’s a sign that CATAGEN’s impact is being felt far beyond Ireland and the UK. We are using our market led rapid innovation to build technologies to help solve global problems and this ranking affirms that the world is watching what is coming next…stay tuned.”


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CATAGEN’s mission is to clean and decarbonise the air.
We are a pioneering emissions testing facility based in Belfast providing unrivalled metrics to optimise catalyst development and reduce harmful tailpipe emissions.
Our expertise in the mobility sector and global emissions standards has led us to develop the ClimaHtech system.
CATAGEN’s ClimaHtech suite is an acceleration system towards decarbonisation using advanced climate technologies to generate biohydrogen and gHreen e-fuels with complementary systems for hydrogen compression.
This summer, CATAGEN will unveil these 3 real-world, decentralised fuel systems designed to decarbonise some of the most polluting sectors on the planet to meet 2050 targets – aviation, cement, mobility, heavy machinery and more.
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