Lehmann Marine GmbH

What Lehmann Marine GmbH does

Lehmann Marine GmbH is a German maritime battery system manufacturer founded in January 2023 as a spin-off of the COBRA battery division from Becker Marine Systems, with the Lehmann family retaining ownership through family office Höpen GmbH. The company designs, engineers, and manufactures lithium iron phosphate (LFP) battery systems for maritime applications at its Seevetal-Hittfeld headquarters south of Hamburg. Its product portfolio spans three systems: COBRA (a compact, water or air-cooled battery rack scalable from a few kWh to 1.5 MWh per cluster, originally developed over six years at Becker Marine Systems), CUBE (a modular air-cooled system with patented cell-cooling technology, scalable to 2.2 MWh per cluster), and AQUBE (a water-cooled high-power 2C variant combining CUBE and COBRA architecture). All products are type-approved by the four major maritime classification societies (Bureau Veritas, DNV, Lloyd's Register, RINA), addressing the maritime industry's need for inherently safe, compact energy storage for propulsion, hybrid drive, hotel load, and peak shaving.

The company operates an enterprise field sales model targeting shipyards, ship owners, and system integrators across Europe, with regional offices in Trondheim (Norway) and Eindhoven (Benelux) opened in 2026. Revenue is generated primarily through project-based hardware sales of battery systems, with pricing quoted per project in euros ex-works from Germany, plus after-sales services including commissioning, module exchange, and recycling. Key customers include HADAG (Hamburg Port ferries, 11.4 MWh total), FSV Group/Frøy (Norwegian fish farm support vessels, 6.6 MWh), WSA Rhein (German Rhine waterways authority vessels), Ampereship (Italian Lake Iseo ferries), Piriou (Hydromer hydrogen dredger), and Hamburg Port Authority. As of January 2025, Greek Sunlight Group (Olympia Group) acquired a 51% majority stake, providing manufacturing scale and capital to accelerate growth, while the Lehmann family continues managing operations. The company also maintains integrator partnerships with Elmarin, Actemium Marine, Brunvoll, and Baumüller for system integration into vessel electrical architectures.

Name

Lehmann Marine GmbH

Legal name

Lehmann Marine GmbH

Website

https://lehmann-marine.com

Company type

Private

Founded year

2023

Operating status

Operating

Headcount range

11–50 employees

Short description

Lehmann Marine GmbH is a German manufacturer of modular lithium iron phosphate (LFP) battery systems (COBRA, CUBE, AQUBE) for maritime electrification, serving shipyards, vessel operators, and system integrators across Europe with type-approved products from 11 kWh to several MWh.

Ownership category

akta.pro rank

Product category

Maritime Battery Energy Storage Systems

NAICS

Battery Manufacturing (33591)

akta.pro primary industry

Energy Storage Systems for Marine (Batteries, supercapacitors) (IMAJAHAJ)

akta.pro secondary industries

Marine Power Generation & Energy Storage (Generators, Batteries, UPS) (IMAJAJAB), Battery Modules & Packs (Industrial/Commercial pack assembly) (IMAGAHAB)

Keywords

• Maritime battery systems
• Lithium iron phosphate batteries
• Marine energy storage
• Electric vessel propulsion
• Hybrid ship propulsion

Headquarters

HQ city

Seevetal-Hittfeld

HQ country

Germany

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Battery System Sales (Hardware): Lehmann Marine generates revenue primarily through the sale of maritime battery systems (COBRA, CUBE, AQUBE). These are capital equipment purchases where customers (shipyards, shipowners, system integrators) buy battery systems as part of new vessel builds or retrofits. Pricing is quote-based and project-specific, varying by capacity, configuration, and application. The company's GTC specify ex-works (EXW) delivery terms from Germany.
2. After-Sales Services and Support: Services include battery module exchange at end of life cycle, replacement with new modules, and on-site commissioning and maintenance support. Service engineer Niclas is referenced as conducting commissioning work on vessels in Norway. Recycling services are also offered through a partner network.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels4 records

Core offering

Lehmann Marine GmbH designs, develops, manufactures, and sells lithium iron phosphate (LFP) battery energy storage systems for maritime vessels. The product portfolio comprises three modular platforms — COBRA (water or air-cooled compact rack, up to 1.5 MWh per cluster), CUBE (air-cooled modular with patented air-cooling, up to 2.2 MWh per cluster), and AQUBE (water-cooled high-power 2C) — scalable from a few kWh to several MWh. The company also delivers commissioning, after-sales service, battery module exchange, and recycling through partners.

Product overview

Lehmann Marine GmbH offers a portfolio of three marine battery systems designed and manufactured in Germany: COBRA (Compact Battery Rack) for water or air-cooled applications, CUBE for flexible air-cooled energy storage with superior density, and AQUBE combining CUBE design with water-cooling for high-power 2C applications. All products use inherently safe LFP (lithium iron phosphate) cell chemistry, are modular and scalable from kWh to MWh scale, and are type-approved by major classification societies (Bureau Veritas, DNV, Lloyd's Register, RINA).

Differentiator

Problem solved

Functional benefit

Brands

• AQUBE: Water-cooled 2C high-power battery system featuring compact and flexible design combined with sophisticated water cooling technology based on COBRA system.
• CUBE
• COBRA

Products and services

• COBRA Battery System Compact battery rack system employing inherently safe lithium iron phosphate (LFP) cell technology, available in water-cooled or air-cooled configurations. Provides up to 94 kWh per rack and 1,000 VDC, with battery clusters up to 1.5 MWh. Designed for maritime vessel operators, shipyards, and system integrators seeking modular, safe, and compact energy storage from a few kWh to several MWh.
• CUBE Battery System Flexible and modular air-cooled battery system with superior energy density, featuring patented air-cooling technology for uniform cell cooling and highest cycle life. 1 to 11 Battery CUBEs per Battery String, up to 137.5 kWh and 1,000 VDC per string, with battery clusters up to 2.2 MWh (16 strings). Includes integrated Battery Management System (BMS), gas exhaust, and pre-charge functionality. Designed for maritime vessel electrification requiring compact, safe, scalable energy storage.
• AQUBE Battery System Water-cooled high-power 2C battery system combining the compact, flexible design of CUBE with the sophisticated water-cooling technology from COBRA. Features safe LFP cell chemistry and scalable modular configuration from a few kWh to several MWh in strings up to 1,000 VDC. Targeted at high-power maritime propulsion and energy storage applications.
• After-Sales Service & Support After-sales services for Lehmann Marine battery systems including battery module exchange at end of lifecycle with replacement modules, on-site commissioning by in-house service engineers, and maintenance support. Recycling services are also offered through a partner network.

Quantifiable outcome

• LFP technology eliminates fire risk during thermal runaway — only gas is released and safely discharged to outside (vs. fire in NMC/NCA batteries)
• +3 more outcomes

Named customers10 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Ten partnerships are on record, tiered core and minor.

• Becker Marine Systems / Höpen GmbHcoreStrategic or Co-development Partner · 1 January 2023COBRA battery system was initially developed by Becker Marine Systems over six years. On January 1, 2023, the COBRA product and related business was incorporated into Lehmann Marine, a subsidiary of Höpen GmbH (Family Office). The Lehmann family and Höpen GmbH remain shareholders in both Becker Marine Systems and Lehmann Marine. Managing Directors Godehard Gauf and Alexander Lehmann led the spinout.
• Elmarin AScoreImplementation/ SI/ Consulting PartnerNorwegian system integrator and partner that integrates Lehmann Marine CUBE battery systems into fish farm support vessels. Elmarin selected Lehmann Marine's flexible and safe battery technology for multiple vessel projects including a series for FSV Group, Cermaq Norway, and Frøy. Lehmann Marine has a Trondheim office to support this partnership.
• Actemium MarinecoreImplementation/ SI/ Consulting PartnerElectrical system integrator that installed COBRA battery system on the world's first hydrogen dredger 'Hydromer' built by Piriou. Partnered with Lehmann Marine for the groundbreaking hydrogen-electric hybrid propulsion project.
• Ampereship (Ostseestaal GmbH & Co. KG)coreImplementation/ SI/ Consulting PartnerEmission-free division of Stralsund-based Ostseestaal GmbH & Co. KG. Built two fully electric solar ferries for Lake Iseo using Lehmann Marine CUBE battery systems (~750 kWh per vessel). Ampereship represents a key customer and partner for electric ferry projects.
• SET Schiffbau- und Entwicklungsgesellschaft Tangermünde mbHcoreImplementation/ SI/ Consulting PartnerShipyard building three HADAG Type 2030e fully electric passenger ferries (~30m, 250 pax) for the Port of Hamburg, using 3.8 MWh CUBE battery systems per vessel. Largest order in Lehmann Marine company history.
• Bolle Shipyard (Derben)coreImplementation/ SI/ Consulting PartnerGerman shipyard that selected Lehmann Marine to provide battery systems for a series of five new traffic safety vessels for WSA Rhein (German Rhine Waterways and Shipping Administration), as well as authority work boat MS Neuss.
• Sletta VerftcoreImplementation/ SI/ Consulting PartnerNorwegian shipyard building fish farm support vessels equipped with Lehmann Marine CUBE battery systems in partnership with Elmarin. Multiple vessels commissioned including Frøy Supporter and Multi Challenger.
• Maritime Battery ForumminorOthersIndustry platform for sharing knowledge and best practices in the development, installation, and operation of battery systems for the maritime industry. Lehmann Marine is a member, contributing to the forum's goal of accelerating battery technology adoption and promoting a sustainable maritime industry.
• BrunvollcoreImplementation/ SI/ Consulting PartnerSystem integrator for the fully electric RYGERBUEN ferry (1.5 MWh CUBE) and NR Rival crew transfer vessel (112 kWh CUBE). Norwegian maritime technology company providing electric propulsion systems.
• BaumüllercoreImplementation/ SI/ Consulting PartnerSystem integrator coordinating the retrofit of the Prince Madog research vessel (Bangor University / O.S. Energy) with hydrogen-electric hybrid propulsion using 225 kWh CUBE battery system.

Scale indicators11 records

Recent moves13 records

Expansion highlights7 records

Broad incumbents

• ABB Marine & Ports: Swiss multinational delivering electric propulsion, energy storage and shore power for ships. Overlaps with Lehmann Marine where vessels require combined propulsion and battery systems, particularly in cruise and large ferry electrification.
• Akasol (BorgWarner): German-origin manufacturer of high-energy lithium-ion battery systems for commercial vehicles, rail and marine, now part of BorgWarner. Comparable because it sells modular battery packs with German engineering pedigree to similar large-scale mobility customers.
• Wärtsilä Energy Storage: Finnish large marine systems integrator with an established maritime battery product line as part of its broader ship power portfolio. Competes with Lehmann Marine for hybrid-electric vessel programs where customers buy total system solutions rather than standalone batteries.
• Saft (TotalEnergies): French industrial battery manufacturer owned by TotalEnergies producing lithium-ion cells and modules for marine, defense, rail and grid. Overlaps with Lehmann Marine in maritime ESS where customers value cell-level heritage and global supply.

Direct peers

• Corvus Energy: Norwegian-based leader in maritime energy storage with LFP battery systems and shore power solutions. Most directly comparable to Lehmann Marine given similar LFP chemistry focus, maritime specialization, and project references across ferries, offshore vessels and cruise ships.
• Echandia: Swedish maritime battery systems provider with LTO and LFP modules for ferries and commercial vessels. Direct competitor in the European small-to-mid scale maritime battery market where Lehmann operates.
• Spear Power Systems: US-based supplier of lithium-ion battery systems for marine, defense and industrial markets. Direct competitor targeting similar maritime electrification use cases as Lehmann Marine with comparable modular product offerings.
• EST-Floattech: Dutch manufacturer of battery systems for maritime applications, founded in Rotterdam. Competes head-to-head with Lehmann Marine in the Benelux market and across European superyachts, offshore and inland-vessel segments.
• Sterling Planb Energy: Italy-headquartered designer and integrator of battery energy storage systems for marine and industrial applications. Comparable because it sells modular maritime battery systems into shipyards across Mediterranean and European inland waterways.
• Shift Clean Energy: UK/Canada-based ESS provider focused on maritime and offshore energy storage with the Energy Storage-as-a-Service model. Competes with Lehmann Marine for similar electrification retrofit and new-build programs.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks7 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UC
• LinkedInlinkedin.com/company/lehmann-marine-gmbh

Compliance9 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles15 records

Funding overview

Funding rounds

Investors

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 Lehmann Marine GmbH