REINTJES
REINTJES is a German, privately held manufacturer of customized marine gearboxes and propulsion systems, serving shipowners, yacht builders, ferry operators, and offshore vessel operators worldwide through 11 subsidiaries and a global service network, with about 1,000 gearboxes produced annually.
- Company typePrivate
- Founded1879
- HeadquartersHameln, Germany
- Headcount251–500
- GTM typeB2B
- OfferingHardware or Manufacturing
What REINTJES does
REINTJES GmbH is a privately held German manufacturer of customized marine gearboxes and propulsion systems, headquartered in Hameln and operating globally via 11 wholly-owned subsidiaries and a network of service partners. Founded in 1879 by Theodor Reintjes and owned by the Eugen-Reintjes-Stiftung foundation, the company has built more than 145 years of specialized engineering know-how, producing roughly 1,000 gearboxes per year for yachts, ferries, work vessels, offshore support ships and naval applications. Its core hardware portfolio comprises three marine gearbox families (LAF, VLJ, WAF), supplemented in recent years by hybrid and full-electric ship drives delivered through subsidiary REINTJES Hybrid Power (RHP), plus a proprietary XXL additive-manufacturing process for large gearbox housings that achieved 41% energy savings and 36% weight reduction in pilot builds.
The commercial strategy is built on direct enterprise field sales supported by an in-house technical academy, a gearbox configurator, and a Digital Portal for spare-parts ordering and asset-record management. Revenue is generated primarily through custom-engineered hardware sales (mechanical, hybrid and electric propulsion systems) combined with an expanding after-sales service stream that supplies maintenance, overhauls, and spare parts through the global subsidiary footprint — a recurring-revenue layer that overlays the long-lifecycle installed base. Reported group revenue was approximately €138 million in 2025 (up from €135M in 2024 and €74M in 2021), with profit of €11.6M, and the company is investing its growth in hybrid/electric propulsion, digital gearbox automation (GBXA), and continued R&D partnerships for advanced manufacturing.
REINTJES firmographics
Firmographics- Name
- REINTJES
- Legal name
- REINTJES GmbH
- Website
- https://reintjes-gears.de
- Company type
- Private
- Founded year
- 1879
- Operating status
- Operating
- Headcount range
- 251–500 employees
- Short description
- REINTJES is a German, privately held manufacturer of customized marine gearboxes and propulsion systems, serving shipowners, yacht builders, ferry operators, and offshore vessel operators worldwide through 11 subsidiaries and a global service network, with about 1,000 gearboxes produced annually.
- Ownership category
- akta.pro rank
REINTJES industry classification
Industry- Product category
- Marine Propulsion Systems
- NAICS
- Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing (333612)
- SIC
- Engines & Turbines (3510)
- akta.pro primary industry
- Propulsion Drives, Gearboxes & Shaftlines (IMAJAHAD)
- akta.pro secondary industries
- Marine Hybrid & Electric Propulsion Systems (IMAJAHAC), Propulsion, Power & Energy Systems Design (Diesel, Hybrid, Electric, Alternative Fuels) (IMAJAGAE), Propulsion MRO, Spares & Field Service (Overhauls, retrofits, upgrades) (IMAJAHAN)
Keywords
Where REINTJES is headquartered
LocationHeadquarters
- HQ city
- Hameln
- HQ country
- Germany
- HQ region
- Europe
Offices10 records
Markets served
REINTJES business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Operations, Technology or R&D, Supply Chain, Marketing or Sales, Infrastructure
Revenue model
- Ship Gearbox Manufacturing: REINTJES develops and manufactures customized ship gears for all vessel types including yachts, ferries, and work vessels. The company sells approximately 1000 gearboxes per year. Products include mechanical, hybrid, and full-electric propulsion systems.
- After-Sales Service and Spare Parts: REINTJES has invested in building a dedicated spare parts warehouse and is transforming its service division from classical service toward comprehensive after-sales support, including maintenance, overhaul, and repair services for its global customer base.
Go-to-market motion2 records
Distribution channels2 records
Marketing channels5 records
REINTJES product offering
Product offeringCore offering
REINTJES develops and manufactures customized ship gears (marine gearboxes and propulsion systems) for all vessel types including yachts, ferries, work vessels, and offshore vessels. The product portfolio covers mechanical, hybrid, and full-electric propulsion systems in three core series (LAF, VLJ, WAF), complemented by Gearbox Automation (GBXA) digital integration, an online Gearbox Configurator, and a global after-sales service network spanning 11 subsidiaries.
Product overview
REINTJES develops and manufactures customized marine and industrial gearboxes from its headquarters in Hameln, Germany. The core product portfolio comprises three main gearbox series: LAF (light-duty marine applications), VLJ (versatile light-duty), and WAF (heavy-duty marine). Beyond traditional mechanical transmissions, REINTJES has expanded into hybrid and full-electric ship propulsion systems as part of its sustainable technology strategy. The product lineup includes Gearbox Automation solutions for digital integration and autonomous vessel applications. Supporting the hardware products is a digital ecosystem comprising the Gearbox Configurator for online product selection and a Digital Portal for spare parts ordering and service record management. The company also offers comprehensive aftersales service through its global network of eleven subsidiaries and numerous service partners.
Differentiator
Problem solved
Functional benefit
Products and services
- LAF Series Marine Gearboxes A comprehensive series of marine reduction gearboxes designed for various vessel propulsion applications, including single and multiple propulsion systems. Available in multiple sizes with different power ratings and reduction ratios, serving light-duty marine applications.
- VLJ Series Marine Gearboxes Versatile marine gearboxes suitable for light to medium-duty applications across different vessel types, with a compact design and various ratio options for different propulsion configurations.
- WAF Series Marine Gearboxes Heavy-duty marine propulsion gearboxes engineered for larger vessels requiring higher torque capacity and robust construction for demanding maritime operations and work vessels.
- Hybrid Ship Drives Hybrid propulsion systems combining traditional combustion engines with electric power for enhanced fuel efficiency, reduced emissions, and flexible operational modes including generator-off operations. Deployed for example on the Penguin International 'Pelican Peace' crewboat with 232 kWh battery energy storage.
- Full-Electric Ship Drives Complete electric propulsion systems for vessels enabling zero-emission operations, full-electric sailing capabilities, and extended battery-powered hotel load support.
- Aftersales Service Comprehensive service offering including maintenance, general overhaul, repairs, and spare parts supply for REINTJES gearboxes, delivered through 11 subsidiary companies and numerous service partners worldwide. Backed by a dedicated spare parts warehouse.
- Gearbox Configurator Online selection tool allowing customers to input parameters such as power, speed, and propulsion requirements to identify suitable marine gearbox models from the REINTJES portfolio (LAF, VLJ, WAF and related series).
Quantifiable outcome
- 41% energy savings achieved with XXL 3D printed gearbox housing compared to conventional manufacturing
- +4 more outcomes
Companies that use REINTJES
Customer profileNamed customers1 record
Segments4 records
Ideal customer profiles4 records
REINTJES technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
REINTJES partnerships and signals
Strategic signalPartnerships
Nine partnerships are on record, tiered core and minor.
- Penguin InternationalcoreREINTJES partnered with Penguin International to develop the 'Pelican Peace' full-hybrid crewboat. REINTJES provided propulsion technology for this 42-meter multirole vessel featuring a true parallel hybrid architecture with 232 kWh battery energy storage system.
- TEWISS – Technik und Wissen GmbHcorePartner in the XXL 3D printing research project (2019-2023) funded by the German Federal Ministry for Economic Affairs and Climate Action. TEWISS contributed expertise in technology development for additive manufacturing of large-scale ship gearbox housings. Total project budget was 3.36 million euros.
- Laser Zentrum Hannover e.V. (LZH)coreResearch partner in the XXL 3D printing project, providing laser technology expertise for additive manufacturing of large-scale components.
- IPH – Institut für Integrierte Produktion Hannover gGmbHcoreResearch partner in the XXL 3D printing project, contributing integrated production expertise.
- Eilhauer MaschinenbaucorePartner in the XXL 3D printing project, contributing mechanical engineering expertise.
- Technische Universität ChemnitzcoreFull partner in the 'Big InTension' follow-up project to the XXL 3D printing initiative. Project leadership lies with REINTJES, with project funding through Projektträger Jülich.
- ARC Solutions GmbHminorFull partner in the 'Big InTension' XXL 3D printing follow-up project.
- Mecklenburger Metallguss GmbH (MMG)minorAssociated partner in the 'Big InTension' XXL 3D printing follow-up project.
- ECOROLL AG WerkzeugtechnikminorAssociated partner in the 'Big InTension' XXL 3D printing follow-up project.
Scale indicators6 records
Recent moves6 records
Expansion highlights6 records
REINTJES competitors and assessment
Company assessmentDirect peers
- ZF Friedrichshafen (ZF Marine): ZF Marine is one of the world's largest marine gearbox and propulsion system manufacturers, offering a comparable product portfolio of mechanical marine transmissions for yachts, commercial vessels, and workboats. It is the closest direct competitor to REINTJES' core LAF, VLJ, and WAF gearbox series.
- RENK Group: RENK manufactures marine and industrial gearboxes and propulsion systems, directly competing with REINTJES in ship gears for naval, commercial, and specialized vessels. Like REINTJES, it serves demanding defense and commercial customers with high-torque gearbox technology.
- David Brown Santasalo: David Brown Santasalo designs and manufactures industrial and marine gearboxes, including custom-engineered gear units for marine propulsion and offshore applications. It is a direct comparable in custom-engineered heavy-duty marine gear manufacturing.
Broad incumbents
- Wärtsilä: Wärtsilä is a global leader in marine engines, hybrid propulsion systems, and lifecycle services for the maritime industry. It competes with REINTJES in hybrid and full-electric marine propulsion while offering a much broader portfolio of engines, integrated systems, and digital services.
- MAN Energy Solutions: MAN Energy Solutions manufactures large two-stroke and four-stroke marine engines and propulsion solutions, including hybrid and dual-fuel systems. It is a broad incumbent whose marine engines pair with gearbox systems like those REINTJES supplies.
- Caterpillar Marine: Caterpillar's marine division supplies marine engines, propulsion, and generator sets across yacht, commercial, and offshore segments. It competes with REINTJES in integrated propulsion packages for workboats, yachts, and offshore vessels.
- ABB Marine & Ports: ABB is a leading supplier of electric, hybrid, and digital propulsion solutions for ships, including Azipod drives and energy storage. It is a broad incumbent in the same full-electric and hybrid marine propulsion segment where REINTJES is investing.
- Kongsberg Maritime: Kongsberg Maritime provides hybrid and electric propulsion systems, automation, and digital solutions for commercial vessels. It competes with REINTJES' hybrid/electric and Gearbox Automation (GBXA) product lines in the maritime energy-transition segment.
- Siemens Energy (Marine Electrification): Siemens Energy supplies electrical propulsion, drives, and power management systems for naval and commercial ships, overlapping with REINTJES' full-electric and hybrid marine drive portfolio. It is a much larger broad incumbent.
Others
- Boston Gear / Altra Industrial Motion: Altra Industrial Motion (parent of Boston Gear, Nuttall, etc.) produces industrial gears, gear drives, and power transmission components for marine, energy, and industrial markets. It is a broader industrial gear competitor with some marine exposure.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
REINTJES social profiles
Digital presenceREINTJES compliance and trust
Trust signalCompliance2 records
REINTJES financial estimates
Financial estimateRevenue estimate
Valuation estimate
REINTJES leadership team
Management profileNumber of profiles
Profiles12 records
REINTJES subsidiaries and ownership
Company hierarchySubsidiaries8 records
REINTJES funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
REINTJES 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 REINTJES
What does REINTJES do?
REINTJES develops and manufactures customized ship gears (marine gearboxes and propulsion systems) for all vessel types including yachts, ferries, work vessels, and offshore vessels. The product portfolio covers mechanical, hybrid, and full-electric propulsion systems in three core series (LAF, VLJ, WAF), complemented by Gearbox Automation (GBXA) digital integration, an online Gearbox Configurator, and a global after-sales service network spanning 11 subsidiaries.
Is REINTJES a public or private company?
REINTJES is a private company. It is classified as nonprofit foundation owned and is currently operating.
When was REINTJES founded?
REINTJES was founded in 1879. It employs 251 to 500 people.
Where is REINTJES based?
REINTJES is headquartered in Hameln, Germany, in the Europe region.
How does REINTJES make money?
Two revenue lines are on record. Ship Gearbox Manufacturing is the primary driver. The others are after-Sales Service and Spare Parts.
Who are REINTJES's main competitors?
Direct peers on record are ZF Friedrichshafen (ZF Marine), RENK Group and David Brown Santasalo. Broad incumbents are Wärtsilä, MAN Energy Solutions, Caterpillar Marine, ABB Marine & Ports, Kongsberg Maritime and Siemens Energy (Marine Electrification). Boston Gear / Altra Industrial Motion is listed as an others.
Does REINTJES have an API?
No public API is recorded for REINTJES.
What industry is REINTJES in?
REINTJES's product category is Marine Propulsion Systems. Its primary akta.pro industry code is IMAJAHAD, Propulsion Drives, Gearboxes & Shaftlines, with a secondary code of IMAJAHAC, Marine Hybrid & Electric Propulsion Systems. Its NAICS code is 333612 and its SIC code is 3510.