H2UB sprint

Europe’s most targeted program for hydrogen start-ups

For seed stage startups

Accelerate with us

Sprint #8

Start
April 13th, 2026
End
June 30th, 2026
APPLICATION OPENS SOON!
Designed for start-ups with proven technology foundations & clear commercial ambition.

Open for teams that are beyond initial prototyping & ready to engage with industrial partners at eye level.

H2UB sprint #1-#7 in numbers

34
start-up teams
11
different countries
230
M€ raised
516
M€ market valuation
9.5
Net Promoter Score

About the sprint

H2UB SPRINT is Europe’s most targeted program for hydrogen start-ups, combining deep industry mentoring, strategic refinement and corporate access to help teams progress toward real-world pilots and venture client engagement.

We bring together sector experts, technology leaders and corporate practitioners who challenge assumptions, sharpen value propositions and provide real industrial insight.

You will collaborate closely with these experts to refine your market fit, validate use cases and strengthen your commercial strategy.

Through targeted access to corporates, you will gain a clear understanding of industrial requirements and move toward concrete collaboration opportunities — from pilots and PoCs to long-term partnerships.

The result: a defined pathway from validated technology to practical deployment and measurable impact in the hydrogen ecosystem.

Key benefits

Get access to an ecosystem of H2 pioneers, corporates and investors
Get to the next level with intensive & individual support
Master your key challenges with senior industry experts and business mentors

The next SPRINT will start in April 2026 - stay tuned for more information about the start of the application phase!

Application opens soon

FAQ

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Our Start-ups

We have established a community of innovative and disruptive hydrogen start-ups that is actively growing. Explore how they are shaping a net zero future.

1s1 Energy

AMBARtec

ARTHUR

Atmen

Carnot

CENmat

CibusCell Technology

Electrogenos

Hydrologiq

Hydrologiq

Elestor B.V.

Eternal Power

Fast Sense

Greenlyte Carbon Technologies

Hydro Technology Motors

ICODOS

Jolt Solutions

Naco Technologies

NanoChronia

NextHeat

NextHeat

NitroFix

Nium

Othersphere

PMR Tech

ReCatalyst

ReCatalyst

retoflow

retoflow

revcoo

REVCOO

REJOOL

Sakowin

Southern Lights

Supercritical Solutions

Supercritical Solutions

Turn2X

xemX

Benefits for our start-ups

Testimonials

We strive to offer the best hydrogen accelerator. Through our extensive H2 ecosystem, we aim to maximise the impact for our start-ups. Read what our start-ups and industry experts have to say about the program.

Joining the H2UB SPRINT program transformed our journey. We received unparalleled support and forged connections with H2 pioneers, corporates and investors. Reconnecting with OGE and TÜV Süd's incredible network and collaborating in a new context after my time at evety (supported by OGE, TÜV Süd and Horvath) was immensely rewarding.

Dr. Dominik Schollenberger, TURN2X, CTO

Dr. Dominik Schollenberger

TURN2X, CTO

Technical expertise on demand, visibility and benevolence. These three powerful ingredients make the H2UB SPRINT stand out in the crowded space of acceleration programs. Atmen is grateful for it!

Flore de Durfort, Atmen, CEO & Co-founder

Flore de Durfort

Atmen, CEO & Co-founder

The H2UB SPRINT is an amazing opportunity for your hydrogen start-up to learn how to scale your business in Europe. H2UB helped us strengthen our go-to-market approach and connected us to relevant experts, partners and drivers in the hydrogen field. Highly recommend.

Florian Hildebrand

Greenlyte, CEO & Co-founder

Participating in the H2UB SPRINT was very valuable for ICODOS. The personalized coaching and networking opportunities with industry experts were invaluable. I would highly recommend the program to any start-up looking to accelerate growth and make impactful connections in the hydrogen sector.

David Strittmatter, ICODOS, CEO & Co-founder

David Strittmatter

ICODOS, CEO & Co-founder

Participating in the H2UB SPRINT was a pivotal moment in our company's development. It led us to a strategic pivot that has significantly accelerated our progress. Since then, we've successfully closed two rounds of funding, thanks in part to the connections we made through H2UB. We highly recommend the program to other young companies and look forward to continue working with H2UB.

Maximilian Wack, HTM, CEO & Founder

Maximilian Wack

HTM, CEO & Founder

The SPRINT meant a significant step for Southern Lights. With the support of H2UB’s network, we accelerated the development of our product, restructured our marketing strategy and visual identity and met our lead VC investor. We are very grateful and proud to keep collaborating with H2UB and their fantastic network of hydrogen experts.

Felipe Gallardo, Southern Lights, CEO & Co-founder

Felipe Gallardo

Southern Lights, CEO & Co-founder

The rapid and agile transfer of established technologies to large-scale production is just as important as the qualification of alternative technologies for a diverse future hydrogen economy. Partnerships between suppliers of proven technologies and high-tech start-ups venturing into new territory bring the necessary momentum to the process of establishing green hydrogen as the energy carrier of the future. Partnerships such as with H2UB are indispensable for strengthening Europe’s competitiveness in the global hydrogen economy.

Dr. Felix Gabriel

thyssenkrupp nucera, Production & Automation Engineer

Green hydrogen has a key role to play in the decarbonisation of industry and the fight against climate change. Now more than ever, we need innovative technologies and an entrepreneurial mindset to bring new solutions to market as quickly as possible. With my background in strategy, I am helping start-ups navigate the ever-changing market environment of this emerging technology to meet customer needs.

Philipp Severich

RWE, Senior Strategy Manager Hydrogen

The ramp-up of the hydrogen industry is crucial for the energy transition and decarbonization. With cross-industry expertise from established players, I'm committed to supporting innovative ideas. My goal is to elevate hydrogen start-ups, advance their innovations to industrial scale and contribute to sustainable solutions in the energy landscape.

Dr. Dominik Bernhardt

P3 energy solutions, Senior Consultant

Any more questions?

Our Ecosystem team will be happy to help you:

Christoph Sommer

Start-up & Innovation

Vincent Radtke

Working Student Ecosystem

Get in touch

Any questions? Please contact us at
info@h2ub.com.