Company directory

World's second-largest industrial-gases company. Producer and distributor of grey, blue, and green hydrogen with major plants in North America, Europe, and Asia.

World's largest hydrogen producer by volume. Lead developer of NEOM Helios, Edmonton Net-Zero, and Massachusetts hydrogen hubs.

Largest industrial gases company globally post-Praxair merger. Major hydrogen production capacity in North America and Europe.

Major operator of green and blue H₂ projects: Holland Hydrogen 1, REFHYNE I/II. Refinery decarbonisation flagship.

Spanish utility with major green hydrogen ambitions in Iberia. Operator of Puertollano (20 MW) and partner in HyDeal Ambition.

German utility with offshore-wind-coupled green H₂ projects across the Netherlands and Germany. AquaVentus consortium member.

French utility, joint partner with Yara on Crystal Ammonia, with TotalEnergies on Masshylia, and major holder of Hyport Duqm stake.

Operator of world's largest currently operational green H₂ plant (Sinopec Kuqa, 260 MW). Also developing pink (nuclear) hydrogen.

Reliance Industries' new energy arm. Plans 3 GW green H₂ capacity at Jamnagar by 2030.

Adani Group's clean-energy arm. 5 GW Mundra green H₂ project; major Indian commitment.

PEM electrolyser manufacturer + green H₂ producer. Operates Camilla, Georgia plant (largest US liquid green H₂).

World's oldest electrolyser manufacturer (alkaline since 1927, PEM since 2017). Customers across all major H₂ projects.

PEM electrolyser specialist. Bessemer Park gigafactory in Sheffield (1.5 GW/yr capacity). Shell, Linde key customers.

Alkaline electrolyser specialist. Spin-off of thyssenkrupp Industrial Solutions. Major projects: H2 Green Steel, Yara, Air Products.

PEM electrolyser manufacturer; Silyzer family. Partner on HIF Haru Oni Chile. New gigafactory in Berlin under construction.

Alkaline electrolyser specialist with manufacturing in Belgium, China, India. JV with Greenko in India.

Solid-oxide fuel cell + electrolyser specialist. SK ecoplant strategic partner. Demo plant in Korea.

PEM electrolyser unicorn ($1B Series C 2024). 100 MW modular skid product. Backed by Microsoft, BP Ventures, Energy Impact Partners.

PEM electrolyser manufacturer with major presence in India. Bangalore + Houston manufacturing.

Hydrogen storage and distribution: high-pressure cylinders, virtual pipelines, fuel cell mobility integration.

Italy's largest gas TSO. Lead on European Hydrogen Backbone. Pipeline repurposing for H₂ transport.

Dutch gas TSO. NortH2 / HyNetwork operator — Dutch national hydrogen backbone, online 2030.

Germany's largest gas TSO. Co-developing the Northern Pipe & Backbone (HyPipe) for H₂.

World's largest hydrogen-focused infrastructure fund: €2B+ AUM. Air Liquide / TotalEnergies / Vinci JV management.

Special-purpose vehicle developing the $10B Tsau //Khaeb green H₂ project; backed by Nicholas Holdings + ENERTRAG.

World's second-largest steelmaker. Hamburg DRI demo + Ghent + Sestao green steel transitions.

tkH2Steel: world's largest hydrogen-DRI plant under construction at Duisburg.

World's first greenfield green-steel company. Boden, Sweden. €6.5B financing closed 2024.

World's largest fertiliser producer. Decarbonising via green/blue H₂ at Sluiskil (NL), Heroya (NO).

Major MENA fertiliser producer; lead developer of Egypt SCZONE green ammonia.

North America's largest ammonia producer. Donaldsonville Blue Ammonia construction.

Heavy-duty fuel-cell truck OEM. Bakersfield green H₂ supply project tied to deployments.

Mirai fuel-cell sedan OEM, partner with Iwatani on Japanese H₂ refuelling stations.

NEXO fuel-cell SUV + XCIENT heavy truck OEM. Co-developer of Ulsan H₂ Hub.

GenH2 Truck and cellcentric JV with Volvo (FCH long-haul trucks). Aim: series production 2027.

Northern Ireland-based hydrogen + electric bus manufacturer. World's first hydrogen double-decker (StreetDeck Hydroliner).

Fuel cell stack manufacturer with focus on heavy-duty mobility. Joint ventures with Weichai and Quantron.

Korea's largest steel producer. Lead industrial partner on Ulsan H₂ Hub. HyREX hydrogen-DRI development.

iX5 Hydrogen pilot fleet. Launching FCH model alongside BEVs from 2028.

Off-highway heavy-equipment OEM. World's first commercial hydrogen-combustion construction engine + integrated mobile refuelling.