LightBridge
LightBridge is a South Korean private hardware company that designs and sells PEM, alkaline, and AEM water electrolyzer stacks, the H-Bridge modular green hydrogen system, and atmospheric plasma coating technology, selling directly to enterprise and government buyers in Korea, Asia, and Europe.
- Company typePrivate
- Founded2020
- HeadquartersHwasong, South Korea
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What LightBridge does
LightBridge (라이트브릿지) is a South Korean private company founded in 2020 and headquartered in Hwaseong-si, Gyeonggi-do, that develops water electrolysis hardware and atmospheric pressure plasma surface-treatment technology for the green hydrogen value chain. Its core product set spans PEM electrolyzer stacks (LBE-PSC, LBE-PMC, LBE-H-PMC high-pressure variant), alkaline electrolyzer stacks (LBE-C, LBE-SC, multi-megawatt alkaline), anion exchange membrane stacks (2kW and 30kW AEMWE in an Ir/Ti-free design), complementary components (PEM fuel cells, HESS, smart hydrogen stations), and the H-Bridge modular system that integrates hydrogen production, storage, and refueling/charging into a single deployable unit. Proprietary elements include in-house high-efficiency electrode development, microwave and DBD atmospheric plasma coating for electrode surface treatment, and a proprietary stacking architecture enabling scalable multi-megawatt configurations.
The company generates revenue primarily through hardware sales of electrolyzer stacks, modular electrolyser systems, fuel cells, and hydrogen energy storage systems to enterprise and government buyers. Pricing is quote-based via its website and is not publicly disclosed; direct enterprise field sales is supplemented by international trade-event lead generation, exemplified by its IFAT Munich 2026 showcase and its inaugural Global Partnership Forum 2025 in Seoul. Target use cases span on-site green hydrogen production for renewable energy operators, hydrogen-based backup power and cooling for data centers, and on-site hydrogen generation for industrial equipment and manufacturing. Its disclosed customer base is currently narrow, with Gwangyang City (South Korea) as its first contracted municipal buyer (four H-Bridge units). LightBridge has raised KRW 4 billion across disclosed Series A tranches (with investors including Anda Asia Ventures, Magna Investment, and Ubiquis Investment), signed strategic MOUs with Zhonglei (China, Nov 14, 2025) and BTL Energy (Czech Republic, Nov 14, 2025), and is pursuing Series B financing with a stated public listing targeted between 2027 and 2028.
LightBridge firmographics
Firmographics- Name
- LightBridge
- Legal name
- LightBridge
- Website
- https://lightbridge.co.kr
- Company type
- Private
- Founded year
- 2020
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- LightBridge is a South Korean private hardware company that designs and sells PEM, alkaline, and AEM water electrolyzer stacks, the H-Bridge modular green hydrogen system, and atmospheric plasma coating technology, selling directly to enterprise and government buyers in Korea, Asia, and Europe.
- Ownership category
- akta.pro rank
LightBridge industry classification
Industry- Product category
- Green Hydrogen Electrolysis Equipment
- NAICS
- Pump and Compressor Manufacturing (33391), Turbine and Turbine Generator Set Units Manufacturing (333611)
- SIC
- Electrical Industrial Apparatus (3620), Electronic & Other Electrical Equipment (No Computer Equip) (3600)
- akta.pro primary industry
- Hydrogen Energy Storage & Power-to-X Equipment (electrolyzers, storage, fuel cell systems) (IMAGAHAM)
- akta.pro secondary industries
- Hydrogen (Industrial & Mobility) (IMAEACAB), Hydrogen CHP (Fuel Cell & H2-Ready Turbines) (EUACAKAF), Hydrogen Production Supply & Offtake (Green/Blue H2) for Utility Blending (EUAJAJAF)
Keywords
Where LightBridge is headquartered
LocationHeadquarters
- HQ city
- Hwasong
- HQ country
- South Korea
- HQ region
- Asia
Offices1 record
Markets served
LightBridge business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Technology or R&D, Supply Chain, Operations, Marketing or Sales, Infrastructure
Revenue model
- Electrolysis Equipment Sales: LightBridge generates revenue primarily from selling electrolysis stacks, modular electrolyser systems, and related components such as fuel cells and hydrogen energy storage systems (HESS) to industrial and enterprise customers.
- Green Hydrogen Infrastructure Contracts: The company derives revenue from contracts to supply modular hydrogen production units, such as the H-Bridge systems sold to municipal governments like Gwangyang City, including delivery and potentially installation services.
Go-to-market motion2 records
Distribution channels2 records
Marketing channels3 records
LightBridge product offering
Product offeringCore offering
LightBridge designs, manufactures, and sells water electrolysis equipment for green hydrogen production, including PEM, alkaline, and AEM electrolyzer stacks, the H-Bridge modular system that integrates hydrogen production, storage, and refueling, PEM fuel cells, hydrogen energy storage systems (HESS), and smart hydrogen refueling stations. It also offers atmospheric pressure plasma technology (microwave and DBD plasma) for electrode surface treatment and coating, and supplies stack evaluation equipment and electrolyzer components. Customers include renewable energy operators, industrial facilities, data centers, and municipal governments.
Product overview
LightBridge offers a comprehensive portfolio of green hydrogen solutions centered on PEM (Proton Exchange Membrane) and Alkaline electrolysis technology. The product lineup includes multiple electrolysis stack variants (LBE-PSC, LBE-PMC, LBE-H-PMC for PEM; LBE-C and Multi-megawatt Alkaline Stack for Alkaline; AEMWE stacks for Anion Exchange Membrane), the H-Bridge modular water electrolysis system integrating production, storage and charging, electrolysis components, stack evaluation equipment, PEM Fuel Cells, HESS (Hydrogen Energy Storage System), and Smart hydrogen stations. The company also provides atmospheric pressure plasma technology for surface treatment and coating applications.
Differentiator
Problem solved
Functional benefit
Products and services
- LBE-PSC PEM Water Electrolyzer Stack PEM (Proton Exchange Membrane) water electrolyzer stack for hydrogen production, sold to industrial and enterprise buyers building green hydrogen systems.
- LBE-C Alkaline Water Electrolyser Stack Alkaline water electrolyser stack with customizable cells for hydrogen production, targeting industrial-scale applications.
- LBE-PMC PEM Water Electrolysis Stack PEM water electrolysis stack for hydrogen generation, designed for industrial and commercial green hydrogen projects.
- LBE-H-PMC High Pressure PEM Water Electrolyzer Stack High-pressure PEM water electrolyzer stack capable of producing pressurized hydrogen directly without additional compression, for refueling and storage applications.
- 2kW AEMWE Stack 2 kW Anion Exchange Membrane Water Electrolyzer stack using an Ir/Ti-free design for cost-effective hydrogen production with a reusable system architecture.
- 30kW AEMWE Stack 30 kW Anion Exchange Membrane Water Electrolyzer stack using an Ir/Ti-free design for medium-scale, cost-effective hydrogen production.
- LBE-P40C-L4 PEM Water Electrolysis Stack PEM water electrolysis stack variant for industrial hydrogen production applications.
- Multi-megawatt Alkaline Stack Large-scale alkaline electrolyzer stack designed for multi-megawatt industrial hydrogen production.
- LBE-SC Alkaline Water Electrolyser Stack Alkaline water electrolyser stack with customizable cells, used for hydrogen production in industrial and commercial applications.
- H-Bridge Modular Water Electrolysis System Modular water electrolysis system that integrates hydrogen production, storage, and charging into a single deployable infrastructure for green hydrogen refueling and distributed energy applications.
- Modular Type Electrolyser Modular electrolysis system designed for flexible deployment in distributed hydrogen production applications.
- PEM Fuel Cell PEM fuel cell for power generation applications, including backup power and combined heat and power use cases.
- HESS (Hydrogen Energy Storage System) Hydrogen Energy Storage System that stores renewable energy in the form of hydrogen for later use, supporting grid balancing and energy arbitrage.
- Smart Hydrogen Station Intelligent hydrogen refueling station system for hydrogen distribution and dispensing to fuel-cell vehicles and equipment.
- Atmospheric Pressure Plasma Surface Treatment Service Atmospheric pressure plasma services (microwave plasma and DBD plasma) for electrode and component surface treatment and coating, enhancing performance and longevity.
- Stack Evaluation Equipment Equipment used to evaluate and test the performance of electrolysis stacks for quality assurance and R&D purposes.
- Electrolysis Components Individual components and parts used in electrolysis systems, supplied to integrators and stack manufacturers.
Quantifiable outcome
- 4 H-Bridge modular units contracted for delivery to Gwangyang City by year-end
Companies that use LightBridge
Customer profileNamed customers1 record
Segments4 records
Ideal customer profiles4 records
LightBridge technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature6 records
LightBridge partnerships and signals
Strategic signalPartnerships
Two partnerships are on record, tiered core.
- Zhonglei (China)coreLightBridge and Zhonglei signed an MOU on November 14, 2025, in Seoul to co-develop integrated hydrogen refueling systems across Asia. The collaboration combines LightBridge's PEM electrolysers with Zhonglei's hydrogen hardware to create comprehensive refueling infrastructure solutions targeting Asian markets.
- BTL Energy (Czech Republic)coreLightBridge signed an MOU with Czech company BTL Energy on November 14, 2025, during the Global Partnership Forum 2025 in Seoul, to establish a European demonstration base for electrolyser technologies. The collaboration aims to deploy field demonstrations of PEM, AEM, and alkaline electrolysers in European projects and explore supply chain localization within the EU, facilitating LightBridge's entry into the European hydrogen market.
Scale indicators4 records
Recent moves7 records
Expansion highlights6 records
LightBridge competitors and assessment
Company assessmentDirect peers
- ITM Power: UK-based pure-play PEM electrolyzer manufacturer supplying green hydrogen production systems and refueling infrastructure. Comparable to LightBridge in core PEM electrolyzer focus, with similar end-customer types in industrial and mobility segments.
- Nel ASA: Norwegian-headquartered global leader in PEM and alkaline electrolyzers. Directly comparable to LightBridge as a dedicated electrolyzer manufacturer targeting industrial-scale green hydrogen, though Nel operates at substantially larger scale and capacity.
- McPhy Energy: French electrolyzer manufacturer specializing in alkaline and PEM electrolysis equipment for industrial, mobility, and energy applications. Comparable in product offering and end-market focus to LightBridge, with European market presence.
- HydrogenPro: Norwegian alkaline and PEM electrolyzer manufacturer with Chinese joint venture. Comparable in technology breadth and target market to LightBridge, particularly relevant given LightBridge's China MOU with Zhonglei.
Broad incumbents
- Plug Power: US-listed hydrogen company spanning PEM fuel cells, electrolyzers, and hydrogen refueling stations. Comparable to LightBridge across the PEM fuel cell and electrolyzer stack product lines, with much broader commercial deployment and integration.
- thyssenkrupp nucera: German electrolyzer specialist (formerly part of thyssenkrupp) offering alkaline and PEM water electrolysis at multi-hundred-MW scale. Comparable technology stack to LightBridge with a much larger installed-base and project pipeline.
- Doosan Enerbility: Korean heavy industrial conglomerate with a sizable PEM and alkaline electrolyzer business. Direct domestic competitor to LightBridge with far greater manufacturing scale, balance sheet, and global project execution capability.
- Cummins (Accelera by Cummins): US-based engine and power equipment maker with a hydrogen electrolyzer and fuel cell business unit (Accelera). Comparable technology overlap with LightBridge's PEM fuel cells and electrolyzers, though as part of a much larger industrial portfolio.
Emerging players
- Ohmium International: US/India-based PEM electrolyzer startup scaling modular green hydrogen systems for industrial customers. Comparable to LightBridge as a growth-stage hardware specialist targeting distributed hydrogen production.
- H2Pro: Israeli developer of E-TAC alkaline water electrolysis technology, an emerging cost-competitive alternative to PEM. Comparable to LightBridge as an early-stage electrolyzer innovator targeting cost reductions in green hydrogen production.
Market position
Weaknesses5 records
Competitive moat3 records
Key risks6 records
Key highlights6 records
Customer concentration
LightBridge social profiles
Digital presenceLightBridge financial estimates
Financial estimateRevenue estimate
Valuation estimate
LightBridge leadership team
Management profileNumber of profiles
Profiles1 record
LightBridge funding detail
Funding detailFunding overview
Funding rounds2 records
Investors3 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
LightBridge M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about LightBridge
What does LightBridge do?
LightBridge designs, manufactures, and sells water electrolysis equipment for green hydrogen production, including PEM, alkaline, and AEM electrolyzer stacks, the H-Bridge modular system that integrates hydrogen production, storage, and refueling, PEM fuel cells, hydrogen energy storage systems (HESS), and smart hydrogen refueling stations. It also offers atmospheric pressure plasma technology (microwave and DBD plasma) for electrode surface treatment and coating, and supplies stack evaluation equipment and electrolyzer components. Customers include renewable energy operators, industrial facilities, data centers, and municipal governments.
Is LightBridge a public or private company?
LightBridge is a private company. It is classified as venture growth investor backed and is currently operating.
When was LightBridge founded?
LightBridge was founded in 2020. It employs 11 to 50 people.
Where is LightBridge based?
LightBridge is headquartered in Hwasong, South Korea, in the Asia region.
How does LightBridge make money?
Two revenue lines are on record. Electrolysis Equipment Sales are the primary driver. The others are green Hydrogen Infrastructure Contracts.
Who are LightBridge's main competitors?
Direct peers on record are ITM Power, Nel ASA, McPhy Energy and HydrogenPro. Broad incumbents are Plug Power, thyssenkrupp nucera, Doosan Enerbility and Cummins (Accelera by Cummins). Emerging players are Ohmium International and H2Pro.
Does LightBridge have an API?
No public API is recorded for LightBridge.
What industry is LightBridge in?
LightBridge's product category is Green Hydrogen Electrolysis Equipment. Its primary akta.pro industry code is IMAGAHAM, Hydrogen Energy Storage & Power-to-X Equipment (electrolyzers, storage, fuel cell systems), with a secondary code of IMAEACAB, Hydrogen (Industrial & Mobility). Its NAICS code is 33391 and its SIC code is 3620.