As London accelerates its journey toward a net-zero future, hydrogen companies have emerged as crucial players in transforming the city’s energy landscape. These companies contribute to a clean, low-carbon economy by producing, distributing, and innovating hydrogen technologies that power transport, industry, and infrastructure.
With growing government backing and investor interest, London is quickly becoming a central hub for hydrogen innovation in the UK. Whether you’re a policymaker, investor, or business leader looking to transition to cleaner energy sources, understanding who the top hydrogen companies in London are is essential.
From globally recognised corporations to ambitious startups, these companies represent the diversity and potential of London’s clean energy ecosystem. Below, we’ve profiled ten of the most influential hydrogen companies currently operating in London each offering unique solutions, services, and specialisations in the hydrogen value chain.
Why Are Hydrogen Companies Gaining Momentum in London?
Hydrogen companies are rapidly gaining momentum in London as the city intensifies its pursuit of a net-zero future. With clear targets set by the UK Government and the Mayor’s office for reducing carbon emissions, hydrogen has emerged as a key player in supporting decarbonisation efforts particularly in areas where electrification remains challenging.
The capital’s strategic location, advanced research ecosystem, and established industrial base make it a magnet for companies involved in hydrogen production, infrastructure, and fuel cell technologies.
As funding opportunities increase and urban policies favour low-carbon initiatives, the environment has become ideal for both startups and established hydrogen providers to scale their innovations.
How Is the Hydrogen Industry Reshaping London’s Clean Energy Future?
The integration of hydrogen into London’s energy system is reshaping the city’s approach to clean power. Unlike intermittent sources such as solar or wind, hydrogen can be stored and deployed when needed, offering flexible energy security. This makes it particularly attractive for applications in public transport, heavy goods vehicles, and off-grid power solutions.
Several pilot projects already in operation showcase hydrogen buses and commercial vehicles operating on London’s streets. Beyond transport, hydrogen is also being explored as a potential solution for heating and industrial energy use.
As a result, hydrogen is no longer viewed as a futuristic concept it’s quickly becoming a practical part of London’s sustainable energy mix.
What Makes a Hydrogen Company Innovative and Impactful in London?
Innovation in London’s hydrogen sector is characterised by its emphasis on practical application and long-term impact. Leading companies are not only developing advanced fuel cells or electrolysers but are also designing end-to-end systems that integrate storage, transport, and grid connectivity.
Companies that stand out often collaborate closely with universities, local authorities, and other green energy providers to create solutions tailored to the unique challenges of an urban environment like London.
Whether they focus on scalable hydrogen production, decentralised energy delivery, or data-driven efficiency, the most impactful companies are aligned with London’s broader sustainability goals and contribute meaningfully to achieving net-zero targets.
What Are the Top 10 Hydrogen Companies in London Today?
1. ITM Power – “Fueling Tomorrow with Green Hydrogen”
ITM Power is a London-linked, Sheffield-based leader in PEM (Proton Exchange Membrane) electrolyser technology that produces green hydrogen using renewable electricity and water. The company operates one of the world’s largest electrolyser factories and has long-standing partnerships with Shell, Linde, and the UK government.
ITM Power is known for enabling industrial decarbonisation and supporting hydrogen infrastructure development across the UK, including initiatives around London.
Their systems are scalable, clean, and essential to sectors such as transport, manufacturing, and energy storage. With growing demand for hydrogen as a clean energy carrier, ITM Power remains a pivotal force in the UK’s clean energy strategy.
Core Strength
Electrolyser manufacturing at commercial scale.
Ideal Use
Large-scale hydrogen infrastructure and industrial decarbonisation.
Pricing: Custom quotes upon consultation.
- Website: https://www.itm-power.com
- Phone: +44 (0)114 244 5111
- Address: 22 Atlas Way, Sheffield S4 7QQ, UK
- Email: info@itm-power.com
Review: ★★★★★ “Excellent hydrogen systems with a real focus on environmental impact and industrial application.”
2. Johnson Matthey – “Clean Air, Clean Energy, Cleaner Future”
A global science and chemicals firm headquartered in London, Johnson Matthey is a longstanding innovator in hydrogen fuel cell components and clean hydrogen production. The company is heavily invested in low-carbon hydrogen technologies, including blue and green hydrogen.
With a deep history in catalyst design, they help other firms transition to cleaner energy solutions by supplying high-performance components for electrolysers and fuel cells. Their expertise in sustainable technologies places them at the heart of London’s decarbonisation efforts.
Expert Area
Advanced fuel cell and hydrogen production technologies.
Optimised For
Companies seeking catalyst solutions and clean fuel integration.
Pricing: Project-based pricing tailored to industrial clients.
- Website: https://www.matthey.com
- Phone: +44 (0)20 7269 8400
- Address: 25 Farringdon St, London EC4A 4AB, UK
- Email: enquiries@matthey.com
Review: ★★★★☆ “Highly reputable and science-driven, with a major push into low-carbon hydrogen solutions.”
3. AFC Energy – “Off-Grid Power, On-Demand”
AFC Energy specialises in alkaline fuel cell systems that convert hydrogen into electricity for off-grid and EV charging applications. Based in Surrey and active in London, the company is advancing clean hydrogen power in real-world environments where grid access is limited or impractical.
Their systems are portable, scalable, and particularly useful for temporary setups, construction, and EV infrastructure. As the demand for zero-emission energy grows, AFC Energy stands out for its niche focus and real-world application.
Key Feature
Portable hydrogen fuel cell power solutions.
Suited To
Off-grid EV charging and temporary clean power needs.
Pricing: Available on request for B2B and project installations.
- Website: https://www.afcenergy.com
- Phone: +44 (0)1483 276726
- Address: Unit 71.4 Dunsfold Park, Cranleigh, Surrey GU6 8TB
- Email: info@afcenergy.com
Review: ★★★★☆ “Innovative solutions for remote power practical and sustainable.”
4. Ceres Power – “Efficient Energy with Every Cell”
Ceres Power is a fuel cell technology company with a growing presence in London and across the UK. Known for its solid oxide fuel cell (SOFC) systems, Ceres enables efficient energy generation using hydrogen and other fuels.
Their technology is licensed to major players globally, including Bosch and Doosan. With a focus on low-carbon electricity and heat for residential and commercial applications, Ceres plays a crucial role in supporting distributed energy networks and sustainable infrastructure.
Defining Strength
Solid oxide fuel cell (SOFC) expertise for combined heat and power.
Best Applications
Residential, commercial, and decentralised power generation.
Pricing: Technology licensing and project-based engagements.
- Website: https://www.cerespower.com
- Phone: +44 (0)1403 273 463
- Address: Viking House, Foundry Ln, Horsham RH13 5PX, UK
- Email: info@cerespower.com
Review: ★★★★☆ “Leading SOFC innovation the tech is efficient, quiet, and ideal for clean urban energy.”
5. BOC (a Linde company) – “Hydrogen Delivered, Safely and Sustainably”
BOC is a well-established gas and engineering company under the Linde Group, with a major presence in London. The company operates the UK’s first public hydrogen refuelling station near Heathrow and supplies compressed hydrogen gas to various sectors.
BOC supports industrial users, hydrogen-powered vehicle fleets, and research projects with tailored supply solutions and safety systems. As infrastructure expands, BOC continues to lead in reliable hydrogen delivery and storage.
Primary Expertise
Hydrogen supply logistics and infrastructure.
Most Suitable For
Fleet operators and industrial users needing high-volume hydrogen.
Pricing: Based on volume and service agreements.
- Website: https://www.boconline.co.uk
- Phone: 0800 111 333
- Address: The Priestley Centre, 10 Priestley Road, Woking, Surrey GU21 4XY
- Email: customer.services@boc.com
Review: ★★★★☆ “Reliable supplier fast refuelling times and great customer support.”
6. SGN Hydrogen – “Piping a Hydrogen Future Across the UK”
SGN Hydrogen is leading several hydrogen infrastructure and distribution projects across the UK, including active initiatives in and around London. A subsidiary of SGN (Southern Gas Networks), the company is focused on decarbonising the gas grid by replacing natural gas with low-carbon hydrogen.
Through flagship projects like H100 and local hydrogen blending trials, SGN Hydrogen is exploring how existing gas networks can safely and efficiently carry hydrogen to homes and businesses. This approach holds massive potential for clean heating and energy delivery across the capital and beyond.
Strategic Focus
Hydrogen-ready gas infrastructure and blending technologies.
Tailored For
Residential networks and long-term hydrogen integration in heating.
Pricing: Not applicable to direct consumers; operates through infrastructure projects.
- Website: https://www.sgn.co.uk
- Phone: 0800 912 1700
- Address: St Lawrence House, Station Approach, Horley RH6 9HJ, UK
- Email: customer@sgn.co.uk
Review: ★★★★☆ “Innovative infrastructure work shaping how hydrogen can flow through our homes.”
7. Element 2 – “Fueling Britain’s Hydrogen Highways”
Element 2 is developing the UK’s first network of hydrogen refuelling stations, with a strong focus on infrastructure within and around London. Their ambition is to support heavy transport fleets trucks, buses, and vans in switching to zero-emission fuel.
The company partners with local authorities, logistics providers, and technology firms to roll out refuelling stations across major roadways. Their infrastructure-first strategy places them at the forefront of the UK’s hydrogen mobility market.
Infrastructure Edge
Hydrogen refuelling station development.
Designed For
Commercial transport fleets transitioning to hydrogen fuel.
Pricing: Varies by refuelling contract and fleet volume.
- Website: https://www.element-2.com
- Phone: +44 (0)330 818 2551
- Address: 20-22 Wenlock Road, London N1 7GU
- Email: info@element-2.com
Review: ★★★★☆ “A game-changer for logistics companies aiming for net-zero transport.”
8. GeoPura – “Clean Off-Grid Energy When You Need It Most”
GeoPura delivers clean hydrogen-based energy to locations where traditional electricity infrastructure is unavailable or carbon-heavy. Their hydrogen generators are used at construction sites, live events, and by film studios, replacing diesel generators with silent, emission-free alternatives.
The company is actively expanding its London operations as demand grows for sustainable temporary power. Their solutions are practical, mobile, and tailored to industries under pressure to reduce emissions.
Main Advantage
Off-grid hydrogen power generation.
Tailored To
Temporary site operations and environmentally conscious industries.
Pricing: Based on project scope and generator type.
- Website: https://www.geopura.com
- Phone: +44 (0)115 784 0024
- Address: BioCity, Pennyfoot St, Nottingham NG1 1GF
- Email: info@geopura.com
Review: ★★★★☆ “Reliable off-grid energy with none of the noise or fumes impressive tech.”
9. Green Hydrogen Systems UK – “Scaling Green Hydrogen, Sustainably”
With a growing footprint in the UK, Green Hydrogen Systems offers modular electrolysers designed for renewable hydrogen production.
Their units are suitable for integration with wind, solar, and other clean energy sources, making them ideal for sustainable infrastructure projects. While headquartered in Denmark, their UK partnerships and London-based clients play a vital role in expanding the green hydrogen economy across the country.
Innovation Highlight
Modular, containerised electrolyser solutions.
Focused On
Renewable integration and sustainable project deployment.
Pricing: Tiered pricing depending on output capacity.
- Website: https://www.greenhydrogensystems.com
- Phone: +45 28 79 09 47
- Address: Prags Boulevard 49, 2300 Copenhagen, Denmark (UK presence via partners)
- Email: info@greenhydrogensystems.com
Review: ★★★★☆ “Robust and flexible systems, perfect for green energy projects.”
10. Hydrogen UK – “Championing a Hydrogen-Powered Britain”
Hydrogen UK is the leading trade association representing the hydrogen industry in the United Kingdom, with its base in London. Unlike a commercial hydrogen producer or tech firm, Hydrogen UK plays a strategic role in shaping policy, accelerating deployment, and fostering collaboration across the hydrogen value chain.
Its membership spans the full spectrum of the industry from large energy corporations and infrastructure developers to innovative startups and academic institutions.
Hydrogen UK acts as a central voice advocating for regulatory clarity, public-private investment, and a national hydrogen strategy. Through events, white papers, and direct government engagement, the organisation is essential to the coordinated growth of hydrogen as a major pillar of the UK’s clean energy future.
Key Role
Industry representation, advocacy, and policy leadership in hydrogen.
Works Best For
Hydrogen companies, investors, and stakeholders seeking industry alignment.
Pricing: Membership-based model depending on organisation type.
- Website: https://hydrogen-uk.org
- Address: Hydrogen UK, 10 Dean Farrar St, Westminster, London SW1H 0DX, UK
- Email: info@hydrogen-uk.org
Review: ★★★★☆ “A driving force for hydrogen growth in the UK informative, strategic, and highly connected.”
How Are London-Based Hydrogen Startups Accelerating Innovation?
London’s startup scene is a hotbed of hydrogen innovation, where smaller firms bring fresh ideas and disruptive thinking to the table. Many of these startups operate in areas such as AI-driven energy storage, modular hydrogen power units, or alternative hydrogen production methods that move beyond traditional electrolysis.
These young companies are often supported by innovation grants, accelerator programmes, and partnerships with larger firms or public sector bodies. Their agility allows them to move quickly, test new ideas, and fill technological gaps that larger firms may overlook. In doing so, they inject momentum and creative energy into London’s hydrogen landscape, ensuring the sector remains dynamic and future-facing.
What Infrastructure Supports Hydrogen Companies in London?
The development of robust infrastructure is critical to supporting hydrogen adoption in London. The city currently has several hydrogen refuelling stations in operation, including prominent sites near Heathrow. These facilities serve both public transport fleets and early commercial adopters, ensuring that hydrogen vehicles can operate efficiently across the capital.
Additionally, hydrogen production sites are increasingly being integrated with renewable energy sources such as wind and solar to enable green hydrogen production. Companies are working to expand pipelines, storage units, and mobile delivery systems to make hydrogen more accessible. London’s growing hydrogen infrastructure underscores its readiness to scale adoption across sectors.
Why Should Investors Pay Attention to Hydrogen Companies in London?
Hydrogen presents a compelling investment opportunity, and London is a standout market due to its political stability, strategic policies, and strong environmental agenda. Several hydrogen companies based in the city have attracted substantial rounds of funding, indicating rising investor confidence.
From long-term government strategies to private equity interest, the sector is seeing both institutional and retail investors entering the space. As hydrogen technology matures and commercial demand rises, the potential for strong returns becomes clearer. For investors focused on ESG goals and sustainable finance, London’s hydrogen sector presents a rare mix of innovation and scalability.
What Challenges Do Hydrogen Energy Companies Face in London?
While the momentum is strong, hydrogen companies in London still face significant challenges. One of the most pressing is the cost of green hydrogen production, which remains higher than fossil fuel alternatives. Without consistent subsidies or cost breakthroughs, widespread adoption may remain slow.
Infrastructure development, though advancing, is still limited when compared to other European cities. Regulatory complexities also pose hurdles, particularly in obtaining approvals for new facilities or storage systems. Finally, public perception including concerns about safety and cost can slow adoption unless addressed through awareness campaigns and real-world demonstrations.
Conclusion
London’s hydrogen ecosystem is growing rapidly, positioning the capital as a clean energy leader in the UK and Europe. With strong government backing, a flourishing innovation scene, and a diverse range of companies tackling different aspects of hydrogen technology, the city is laying the foundation for a more sustainable, resilient energy system.
Whether it’s established firms like Johnson Matthey or nimble innovators like H2GO Power, each company contributes a unique element to London’s green transformation. As the city progresses toward net-zero, hydrogen will undoubtedly remain a cornerstone of its clean energy strategy.
FAQs About Hydrogen Companies in London
What role does hydrogen play in London’s clean energy plans?
Hydrogen is seen as essential for decarbonising transport, heating, and industrial processes, helping London meet its climate targets.
Is hydrogen energy widely available in London?
While still developing, hydrogen energy is becoming more accessible through a growing number of refuelling stations and supply chains.
Which companies are driving hydrogen storage innovation in London?
H2GO Power stands out for its AI-integrated hydrogen storage systems, which offer a safer and more efficient alternative to gas tanks.
How do hydrogen fuel cells work in urban environments like London?
Fuel cells generate electricity through a chemical reaction between hydrogen and oxygen, producing only water as a by-product ideal for reducing urban emissions.
Are there government incentives for hydrogen companies in London?
Yes, the UK government offers grants, subsidies, and R&D funding to hydrogen companies, especially those aligned with sustainability goals.
Can hydrogen replace diesel and petrol in public transport?
Hydrogen-powered buses and taxis are already being trialled in London, and future fleet expansions are expected as infrastructure improves.
What is the long-term outlook for hydrogen in London?
The outlook is strong. As costs fall and infrastructure expands, hydrogen is expected to become a mainstream energy source for multiple sectors.