What Ohmium does

Ohmium International, Inc. is a privately held US-headquartered manufacturer of modular Proton Exchange Membrane (PEM) electrolyzers, founded in 2019 and operating from Newark, California with European headquarters in Alcobendas (Madrid), a 240,000 sq. ft. gigafactory in Doddaballapura, Karnataka, additional manufacturing and R&D in Chikkaballapura, a planned $48 million facility in Chengalpattu (Tamil Nadu), and a Rapid Response Service Center in Abu Dhabi. The company designs, builds, and ships factory-assembled, pre-tested electrolyzer systems under the Lotus family (Mark 1.5, Mark 2, and the third-generation Mark 3), each delivered as a multi-cabinet assembly (Distribution Panel, Telemetry, Hydrogen, Power, Glycol, Water, and Cooling Ducts) that converts AC power and treated water into pressurized, high-purity hydrogen at up to 30 barg and 99.9999% purity, with system efficiency of 48 kWhAC/kg, dynamic ramping in 8 seconds, -40°C to 55°C ambient tolerance, and a 29.7 m²/MW footprint. The technology stack is vertically integrated, including in-house production of critical PEM components and proprietary power electronics; the Mark 2 has reached 18 GW/ton iridium utilization, exceeding the 2030 industry target of 10 GW/ton.

Ohmium serves industrial, power, mobility, and government customers across the US, Europe, MENA, India, and Africa on projects ranging from MW to multi-GW scale. Named customers and partners include NLC India, NTPC, Invenergy, Res Integra (Irem Group), Lewis County Transit, H2 Green Mining, Ten08 Energy, SwitcH2 (with BW Offshore), Toyota Kirloskar Motor, E4Efficiency, Hynfra, InSolare, Spirare Energy, RenewCO2, and the Jordan Green Ammonia consortium (with Topsoe). Revenue mechanics combine capital-equipment hardware sales of multi-MW-to-GW systems, recurring 24/7 Remote Monitoring, Maintenance, and Refurbishment (RM&M) services via a global service network (anchored by the Abu Dhabi center), and a selective EPC partner program that provides priority access to project flow.

The business is venture- and PE-backed, with approximately $297 million of disclosed equity funding across a $2 million seed (2020), a $45 million Series B led by Fenice Investment Group (2022), and a $250 million Series C led by TPG Rise Climate (2023), supplemented by a 3M strategic investment (2024) and selection under India's MNRE SIGHT Tranche II for 137 MW of electrolyzer manufacturing (2024). Go-to-market is enterprise-direct with regional senior sales leadership (US, Europe, India/APAC) and OEM-style co-development with project developers, supported by an EPC channel and a major-events presence. Ohmium holds patents in the US, India, Japan, and Taiwan, has earned the first UL 2264A industrial hydrogen generator certification (Nov 2024) and CE Mark (Sept 2024), and has been recognized by Frost & Sullivan (2026) for Technology Innovation Leadership in the PEM electrolyzer industry.

Name

Ohmium

Legal name

Ohmium International, Inc.

Website

https://ohmium.com

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Ohmium manufactures modular PEM electrolyzer systems (Lotus Mark 1.5, Mark 2, Mark 3) producing pressurized, high-purity green hydrogen for industrial, energy, mobility, and government customers worldwide on projects from MW to GW scale.

Ownership category

akta.pro rank

Product category

Hydrogen Electrolyzer Systems

NAICS

Relay and Industrial Control Manufacturing (335314), Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables (334513)

SIC

Special Industry Machinery (No Metalworking Machinery) (3550)

akta.pro primary industry

Hydrogen Energy Storage & Power-to-X Equipment (electrolyzers, storage, fuel cell systems) (IMAGAHAM)

Keywords

• PEM electrolyzer systems
• Green hydrogen production
• Modular electrolyzer manufacturing
• Hydrogen electrolyzer technology
• Clean energy equipment

Headquarters

HQ city

Incline Village

HQ country

United States

HQ region

North America

Offices7 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Technology or R&D, Personnel, Marketing or Sales, Infrastructure

Revenue model

1. Electrolyzer hardware sales: Primary revenue stream: sale of modular PEM electrolyzer systems (Lotus Mark 1.5, Mark 2, Mark 3) to industrial, energy, and mobility customers for green hydrogen production projects ranging from MW to GW scale. Factory-assembled, pre-tested systems shipped worldwide.
2. Remote Monitoring, Maintenance & Refurbishment (RM&M) services: Recurring 24/7 remote monitoring, maintenance, and refurbishment services. Local service centers (e.g., Abu Dhabi Rapid Response Service Center) support fast repairs, higher availability, and operational efficiency. Optional performance guarantee for customers.
3. EPC partner program commissions and project pipeline participation: Selective EPC partner network that provides priority access to project flow, with technical enablement and shared execution on green hydrogen infrastructure projects at scale.

Pricing tiers

Go-to-market motion4 records

Distribution channels4 records

Marketing channels8 records

Core offering

Ohmium manufactures and sells the Lotus family of modular, scalable Proton Exchange Membrane (PEM) electrolyzer systems (Mark 1.5, Mark 2, and Mark 3) that produce pressurized, high-purity green hydrogen for industrial, power, and mobility customers. Systems range from MW to multi-GW scale and are delivered factory-assembled and pre-tested, supported by global Remote Monitoring, Maintenance & Refurbishment (RM&M) services and an EPC partner program.

Product overview

Ohmium is a single-platform manufacturer built around the Ohmium Lotus family of modular, scalable Proton Exchange Membrane (PEM) electrolyzers. The core platform is the Lotus PEM electrolyzer line, offered in three principal generations: the Lotus Mark 1.5 (the first-generation CE-marked system), the Lotus Mark 2 (second-generation commercialized system with industry-leading 18 GW/ton iridium utilization), and the Lotus Mark 3 (third-generation flagship with a 29.7 m²/MW horizontal footprint and 48 kWhAC/kg system efficiency). Each Lotus system is delivered as a comprehensive multi-cabinet assembly consisting of a Distribution Panel, Telemetry Cabinet, Hydrogen Cabinet, Power Cabinet, Glycol Cabinet, Water Cabinet, and Cooling Ducts that together convert AC power and city water into pressurized, high-purity hydrogen. Surrounding the core electrolyzer platform are two named service offerings: Engineering, Procurement, and Construction (EPC) services delivered through a selective partner network, and Remote Monitoring and Maintenance (RM&M) services delivered globally with on-the-ground support through a Rapid Response Service Center in Abu Dhabi. The platform is designed to scale from MW to GW, backed by a vertically integrated manufacturing model with a 2 GW gigafactory in India scalable to 4 GW.

Differentiator

Problem solved

Functional benefit

Brands

• Lotus: Ohmium's PEM electrolyzer product line, including the Lotus Mark 1.5, Lotus Mark 2, and Lotus Mark 3 next-generation PEM electrolyzer products.

Products and services

• Ohmium Lotus Mark 3 PEM Electrolyzer Third-generation modular PEM electrolyzer system delivering pressurized, high-purity hydrogen (up to 99.9999%) with industry-leading system efficiency of approximately 48 kWhAC/kg, a 29.7 m²/MW footprint, an operating range of -40°C to 55°C, and 8-second dynamic ramping from minimum to full load for renewable energy pairing. Designed for industrial, energy, and mobility applications at MW-to-GW scale.
• Ohmium Lotus Mark 2 PEM Electrolyzer Second-generation modular PEM electrolyzer with 18 GW/ton iridium utilization (50% reduction in iridium usage), designed for scalable deployments from megawatt-scale facilities to gigawatt-class energy ecosystems. Incorporates power conversion, electrolyzer stacks, water purification, and thermal management subsystems in multi-cabinet assemblies.
• Ohmium Lotus Mark 1.5 PEM Electrolyzer Earlier-generation modular PEM electrolyzer that received European CE mark approval in September 2024, enabling commercial deployment in European markets. Forms part of the Lotus family alongside the Mark 2 and Mark 3 generations, offering a pressurized high-purity hydrogen solution for industrial applications.
• EPC Partner Program Selective partner network offering strategic EPCs access to a predictable pipeline of MW-to-GW green hydrogen projects, priority positioning before open tender, and the technical foundation to execute green hydrogen infrastructure at scale. Designed for EPC contractors and engineering firms executing multi-MW to multi-GW green hydrogen projects globally.
• Remote Monitoring, Maintenance & Refurbishment (RM&M) Services Continuous 24/7 global remote monitoring and maintenance service supporting Ohmium's hyper-modular electrolyzer installations, backed by the Rapid Response Service Center in Abu Dhabi, UAE for the MENA region. Performs maintenance and refurbishment with reworked bundles returned to customer production sites within 3 days. Optional performance guarantees available.

Quantifiable outcome

• 48 kWhAC per kg system efficiency (stack + BoP), with 45 kWh/kg industry-leading stack efficiency
• +9 more outcomes

Named customers11 records

Segments5 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature11 records

Partnerships

17 partnerships are on record, tiered flagship partner, project partner, project technology partner, core partner, strategic r&d collaboration, strategic government partner and compliance partner.

• Hynfra P.S.A.flagship partnerStrategic or Co-development Partner · 17 June 2026Signed a master cooperation agreement in June 2026 to develop large-scale green hydrogen and green ammonia projects in Mauritania, Jordan, and Oman. Hynfra is a system designer, technology integrator, and project developer with growing international presence in Europe, the Middle East, Asia, and Africa. Ohmium provides PEM electrolyzer technology and FEED support; Hynfra contributes project development expertise and regional relationships. Flagship project is a 400,000-tonnes-per-annum green ammonia facility in Duqm, Oman, powered by 2.6 GW of renewables with ~$4B investment. Hynfra is one of Ohmium's multiple qualified PEM electrolyzer partners.
• Jordan Green Ammonia (JGA) — Hynfra & Fidelity Group JVproject partnerTechnology or Integration · 17 June 2026Ohmium is a named technology partner (with Topsoe) for the Jordan Green Ammonia (JGA) $1 billion green fuel project near Aqaba Port — designed to produce up to 120,000 tonnes of green ammonia annually using a dedicated 550 MWp solar power plant, with commercial operations targeted by 2030. JGA is a joint venture between Polish developer Hynfra and Jordan-based Fidelity Group.
• Topsoeproject technology partnerTechnology or Integration · 17 June 2026Co-technology partner with Ohmium for the JGA Jordan Green Ammonia $1 billion project near Aqaba Port.
• InSolare Energycore partnerStrategic or Co-development Partner · 28 May 2026Collaboration on a 4 MW green hydrogen project for NLC India Limited at Neyveli, Tamil Nadu, India — expected to produce up to 700 metric tons/year of green hydrogen for power generation, industrial use, and mobility. Ohmium provides PEM electrolyzer technology and India-based manufacturing; InSolare provides engineering, procurement, and construction (EPC) expertise. InSolare has a 1.5 GW+ EPC portfolio in India and is a green ammonia tender winner under India's SIGHT programme.
• RenewCO2core partnerStrategic or Co-development Partner · 20 May 2026Collaboration to commercialize CO2-to-chemicals technology pairing RenewCO2's patented eCUT-FA™ catalyst with the Ohmium Lotus PEM electrolyzer platform and manufacturing capabilities. Targets the chemical production sector (~15% of global industrial GHG emissions); combined technology can permanently remove 1.42 tons of CO2 per ton of chemical produced. RenewCO2 plans to deliver its first commercial-scale electrolyzer in 2027.
• Toyota Kirloskar Motor Private Limitedflagship partnerStrategic or Co-development Partner · 25 June 2025Signed a Memorandum of Understanding in New Delhi in June 2025 to collaborate on developing hydrogen-based solutions in India by integrating Toyota's PEM fuel cell modules with Ohmium's hyper-modular PEM electrolyzers. The partnership will explore joint deployment for transportation and energy applications in support of India's carbon-neutral goals. The MoU signing was attended by Union Cabinet Minister Shri Nitin Gadkari.
• E4Efficiencyproject partnerStrategic or Co-development Partner · 22 May 2025Agreement to provide up to 52 tons of green hydrogen for a project in Southern Spain, using Ohmium's PEM electrolyzer technology.
• Res Integra (Irem Group)project partnerStrategic or Co-development Partner · 18 March 20254 MW green hydrogen project in Siracusa, Sicily (Italy) at one of Europe's largest petrochemical sites. Ohmium provides cutting-edge PEM electrolyzers with high efficiency and energy density; Res Integra (part of Irem Group) leads project development. System will produce up to 700 tonnes/year of green hydrogen powered by solar PV.
• H2 Green Miningproject partnerStrategic or Co-development Partner · 20 January 2025Collaboration to develop green hydrogen projects supporting decarbonization in Chilean mining operations.
• Spirare Energycore partnerImplementation/ SI/ Consulting Partner · 9 December 2024Joint project with NTPC at the NETRA campus in New Delhi — Spirare Energy led the green microgrid pilot implementation using Ohmium PEM electrolyzers; system produces green hydrogen stored on-site and converted back to power via fuel cells. Spirare contributed on-site energy generation and integration expertise; Ohmium contributed cutting-edge PEM technology with dynamic ramping for renewable energy pairing.
• SwitcH2 BV (with BW Offshore)flagship partnerStrategic or Co-development Partner · 17 October 2024Signed a Term Sheet in October 2024 to develop PEM electrolyzer solutions for a pioneering 300 MW offshore floating green hydrogen and ammonia synthesis project located off the coast of Southern Europe. 300 MW of Ohmium's PEM electrolyzer solutions will be installed on a 268-meter FPSO vessel, with annual production capacity of up to 55,000 tonnes of green hydrogen and ~300 kton of green ammonia. Project has approval in principle by DNV and targets green ammonia production by 2029.
• Lewis County Transitproject partnerStrategic or Co-development Partner · 9 October 2024Selected by Lewis County Transit as the electrolyzer supplier for Washington State's first Zero Emission Transportation Network. Partnership enables green hydrogen-powered transit fleet operations.
• Ten08 Energyflagship partnerStrategic or Co-development Partner · 12 September 2024Collaboration on a 500 MW Clean Ammonia Project in Texas — Ohmium PEM Electrolyzers will generate green hydrogen for Ten08 Energy's pioneering clean ammonia facility.
• 3Mstrategic r&d collaborationStrategic or Co-development Partner · 18 July 2024In addition to the financial investment, 3M and Ohmium are exploring collaboration in materials science and advanced electrolyzer technologies to support decarbonization across 3M's operations.
• Invenergyflagship partnerStrategic or Co-development PartnerSupplied PEM electrolyzer technology for Invenergy's Sauk Valley Hydrogen facility in Rock Falls, Illinois — Invenergy's inaugural U.S. clean hydrogen plant, which uses solar power to produce up to 40 metric tons/year of clean hydrogen for use as a cooling agent at the Nelson Energy Center natural gas facility.
• Government of Tamil Nadu (India)strategic government partnerStrategic or Co-development PartnerMemorandum of Understanding signed with Tamil Nadu state government during Chief Minister M K Stalin's US delegation visit in 2024 — supports $48M (INR 400 Crores) investment in a new manufacturing facility in Chengalpattu district, Tamil Nadu, expected to create 500 jobs. Ohmium's second major India investment following the Doddaballapura gigafactory (July 2024).
• UL Solutionscompliance partnerOthersOhmium earned the first-ever industrial 'Hydrogen Generator Using Water Electrolysis' certification from UL Solutions in November 2024, validating safety, electrical, pressure, leakage, and personnel protection standards.

Scale indicators13 records

Recent moves10 records

Expansion highlights7 records

Direct peers

• Nel ASA: Norwegian public company and one of the largest pure-play PEM electrolyzer manufacturers globally. Directly comparable product (PEM stacks and complete systems), target customers (industrial, mobility, energy), and channel model (project-based enterprise sales). Competes head-to-head for multi-MW to multi-GW green hydrogen projects in US, Europe, and MENA.
• Plug Power: US-listed hydrogen company with a PEM electrolyzer business alongside fuel cells and hydrogen fueling infrastructure. Directly comparable PEM electrolyzer offering, overlapping customer base (industrial, mobility), and similar geographic focus. Has scale and vertical integration ambitions similar to Ohmium.
• ITM Power: UK-based pure-play PEM electrolyzer manufacturer with a comparable modular product range (PEM units for industrial-scale green hydrogen). Directly competes for the same industrial decarbonization projects in Europe and MENA, with a similar project-based enterprise sales motion.
• Thyssenkrupp Nucera: German electrolyzer specialist (formerly part of Thyssenkrupp) offering both alkaline and PEM electrolyzer technology for large-scale green hydrogen projects. Directly comparable industrial customer base and project-scale deployment model in Europe and MENA.
• McPhy Energy: France-based electrolyzer manufacturer specializing in alkaline and PEM technology for industrial, mobility, and energy applications. Direct competitor for European and MENA green hydrogen projects with comparable modular product architecture.

Broad incumbents

• Cummins (Accelera by Cummins): Cummins' zero-emission business unit includes PEM electrolyzer products (HyLYZER) as part of a broader portfolio that includes fuel cells, electric drives, and batteries. Overlaps with Ohmium in PEM electrolyzer space but serves customers from a much wider industrial portfolio.
• Siemens Energy: Global energy OEM with a PEM electrolyzer offering (Silyzer) as part of a broad power generation, grid, and industrial decarbonization portfolio. Overlaps with Ohmium in green hydrogen but competes from a much larger installed base and balance sheet.
• John Cockerill: Belgian industrial group with a dedicated electrolyzer business (John Cockerill Hydrogen) offering alkaline and PEM systems. Comparable PEM product offering and industrial/mobility customer segments, with broader industrial group support.

Emerging players

• Sunfire: German company developing both solid oxide (SOEC) and PEM electrolyzers for green hydrogen and e-fuels. Partially comparable technology overlap (PEM) and customer segments (industrial, e-fuel, mobility), with a differentiated high-temperature SOEC roadmap.
• Enapter: German-Italian company focused on small-to-medium scale anion exchange membrane (AEM) electrolyzers. Overlaps with Ohmium on the modular, distributed hydrogen narrative but targets a smaller scale (kW-MW vs. Ohmium's MW-GW) and uses a different core technology.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/ohmium_inc
• YouTubeyoutube.com/@ohmiuminc
• LinkedInlinkedin.com/company/ohmium

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles16 records

Subsidiaries1 record

Funding overview

Funding rounds4 records

Investors7 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Ohmium