Lyen Marine

What Lyen Marine does

Lyen Marine (LYEN, legally Liyi En Marine Propulsion (Shanghai) Co., Ltd.) is a Shanghai-headquartered designer and manufacturer of marine propulsion systems founded in 2007, serving commercial shipowners, shipyards, and fleet operators globally. Its core product portfolio comprises Controllable Pitch Propellers (CPP) rated from 200kW to 25,000kW, Tunnel Thrusters, and Azimuth Thrusters, all built around proprietary low-pressure, low-noise architecture that claims propeller efficiencies up to 71% with pressure pulses below 1.27 KPa. The company complements its hardware with a software stack including the FuelOpt automated fuel-optimization system (claimed up to 25% fuel savings, distributed in partnership with Lean Marine/MANTA Marine), a cloud-based Fleet Analytics platform, the integrated ESS energy-saving suite (PSF, Pre-Duct, shaft generator), and the Nebula remote-control platform, packaged as a unified propulsion ecosystem.

Lyen generates revenue primarily through one-time equipment sales of newbuild propulsion packages and retrofits, plus professional services for maintenance, repair, and upgrades. Distribution is sales-led via direct enterprise engagement combined with regional sales offices and agents in Sweden (European HQ), Singapore, Malaysia, Turkey, and Greece, and close shipyard co-development with yards such as NantongXiangyu, CSSC Guangli, Jiangnan, and CIMC Raffles. The company has served over 500 vessels cumulatively across tanker, RORO, offshore, research, firefighting, and Antarctic krill fishing segments, with 200+ FuelOpt installations and named customers including Bohai Ferry, COSCO Shipping, Stena Line, Color Line, Shanghai Salvage, and Qinzhou Port. In 2025 it opened a new 33,335 sqm R&D and manufacturing base in Changshu, China, and in May 2026 closed a B-round of over 100 million RMB led by Huatai Zijin to fund next-generation technology R&D and capacity expansion.

Name

Lyen Marine

Legal name

利屹恩船用推进器（上海）有限公司

Website

https://lyenmarintec.com

Company type

Private

Founded year

2007

Operating status

Operating

Headcount range

101–250 employees

Short description

Lyen Marine is a Shanghai-based designer and manufacturer of marine propulsion systems — Controllable Pitch Propellers, Tunnel Thrusters, and Azimuth Thrusters — integrated with FuelOpt fuel-optimization software, serving global shipowners, shipyards, and fleet operators across 500+ vessels.

Ownership category

akta.pro rank

Product category

Marine Propulsion Systems

NAICS

Ship Building and Repairing (336611), Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing (333612), Turbine and Turbine Generator Set Units Manufacturing (333611), Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (334511)

SIC

Ship & Boat Building & Repairing (3730), Special Industry Machinery, Nec (3559)

akta.pro primary industry

Propellers & Waterjets (IMAJAHAE)

akta.pro secondary industries

Propulsion Control, Monitoring & Automation (ECS, PMS interface) (IMAJAHAH), Propulsion MRO, Spares & Field Service (Overhauls, retrofits, upgrades) (IMAJAHAN), Propulsion, Power & Energy Systems Design (Diesel, Hybrid, Electric, Alternative Fuels) (IMAJAGAE)

Keywords

• Marine propulsion systems
• Controllable pitch propellers
• Tunnel thrusters
• Azimuth thrusters
• Marine fuel optimization

Headquarters

HQ city

Shanghai

HQ country

China

HQ region

Asia

Offices7 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Marine Propulsion Systems: Design, production, and supply of controllable pitch propellers, tunnel thrusters, and azimuth thrusters. Revenue generated from equipment sales, system integration, and installation services.
2. FuelOpt Intelligent Fuel Optimization System: Automated fuel-saving solution that optimizes propulsion in real-time. Revenue from system sales, installation, commissioning, and ongoing service support.
3. Energy Saving Devices: PSF (Power Saving Fin), Pre-Duct, and shaft generator systems that improve propulsion efficiency. Revenue from hardware sales and retrofit services.
4. Maintenance, Repair and Upgrade Services: Aftermarket services including maintenance, repair, and upgrade of existing propulsion systems. Revenue from service contracts, spare parts, and technical support.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels4 records

Core offering

LYEN Marine designs, manufactures, and supplies marine propulsion systems for commercial vessels, with core offerings including controllable pitch propellers (CPP), tunnel thrusters, and azimuth thrusters. The company complements its hardware portfolio with intelligent software solutions such as FuelOpt for automated fuel optimization, Fleet Analytics for cloud-based vessel data analysis, and the Nebula remote control platform. LYEN also delivers integrated propulsion packages combining hardware with energy-saving devices and control systems to shipowners, shipyards, and fleet operators globally, supported by installation, commissioning, and after-sales maintenance services.

Product overview

LYEN Marine is a marine propulsion technology company offering a comprehensive portfolio of hardware and software solutions for vessel efficiency. Core products include Controllable Pitch Propellers (CPP) rated 200kW-25,000kW, Tunnel Thrusters (LTT), and Azimuth Thrusters (LAT), all featuring low pressure, low noise, and modular design characteristics. The intelligent software suite comprises FuelOpt for automated real-time fuel optimization, Fleet Analytics for cloud-based vessel data analysis, and the ESS (Energy-Saving Solution) integrating Power Saving Fin, Pre-Duct, and Shaft Generator System. Additional offerings include Conical Rotor Sail for wind-assisted propulsion, Nebula Remote Control System for bridge-based propulsion management, and comprehensive maintenance/repair services. LYEN also operates an advanced R&D and manufacturing base in Changshu, China. The company serves diverse vessel types including oil/chemical tankers, research vessels, RORO ships, offshore vessels, fireboats, and krill fishing vessels.

Differentiator

Problem solved

Functional benefit

Brands

• FuelOpt: Automated real-time fuel optimization system that controls propeller pitch and engine RPM to maximize propulsion efficiency and reduce fuel consumption by up to 25%. Developed by Lean Marine (Manta Marine).
• Fleet Analytics
• ESS (Energy-Saving Solution)
• LYEN PSF (Power Saving Fin)
• LYEN PRE-DUCT
• Nebula

Products and services

• LYEN Controllable Pitch Propeller (CPP)

Quantifiable outcome

• Fuel savings up to 25% with FuelOpt depending on vessel and operation profile
• +5 more outcomes

Named customers12 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability8 records

Feature9 records

Partnerships

Four partnerships are on record, tiered regional and core.

• OkeanOneregionalChannel Partner/ Reseller/ Distributor · 26 June 2026Greek agent representing LYEN for sales and service in Greece. Contact: Christos Kaptanoglou, handling repairs and sales support.
• NantongXiangyu Shipyard (南通象屿船厂)coreStrategic or Co-development Partner · 14 February 2026Shipyard constructing 6800DWT oil & chemical tanker with LYEN integrated propulsion system. LYEN works closely with shipyard from design to installation for seamless system integration.
• MAN (MAN 6L32/40)coreTechnology or Integration · 14 February 2026Main engine supplier for integrated propulsion solutions. The 113.60-meter tanker is equipped with MAN 6L32/40 main engine integrated with LYEN CPP and shaft generator system.
• CSSC Guangxi Shipyard (中国船舶集团广西造船有限公司)coreStrategic or Co-development Partner · 29 July 2025Shipyard building 800-tonne fireboats for Qinzhou Port with LYEN Azimuth Thruster systems. LYEN provides comprehensive propulsion packages with local engineering support.

Scale indicators8 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Schottel: German-headquartered specialist in azimuth and tunnel thrusters for marine propulsion, competing head-to-head with LYEN's LAT and LTT product lines across commercial, offshore, and naval vessel segments.
• Brunvoll Volda: Norwegian manufacturer of azimuth thrusters, tunnel thrusters, and controllable pitch propellers with a directly overlapping product portfolio to LYEN's CPP, LTT, and LAT offerings, serving similar shipowner and offshore customers.
• Nakashima Propeller: Japanese propeller manufacturer producing CPP and FPP systems for commercial shipping, directly comparable to LYEN's CPP product line and competing for Asian newbuild contracts.
• Berg Propulsion (Cargotec/MacGregor): Swedish thruster manufacturer producing azimuth and main propulsion units, directly competing with LYEN's thruster portfolio, particularly in offshore, DP, and specialized vessel markets.

Broad incumbents

• Wärtsilä: Global marine technology incumbent offering integrated propulsion, engines, fuel-saving systems, and digital services. Competitor across LYEN's full integrated solution including shaft generators, propulsion control, and FuelOpt-equivalent offerings.
• ABB Marine & Ports: Major electrical propulsion and marine automation provider offering Azipod azimuth thrusters and integrated digital vessel solutions, competing with LYEN across propulsion hardware and software layers.
• MAN Energy Solutions: World-leading manufacturer of large marine engines and supplier of propulsion systems (including via licensees). LYEN partners with MAN on integrated solutions (e.g., 6L32/40 main engines), but MAN is also a competing propulsion solutions supplier globally.
• Kongsberg Maritime: Provider of marine propulsion control, automation, and integrated vessel systems including azimuth thrusters. Competes with LYEN's Nebula control platform, FuelOpt, and thruster products in the integrated package segment.

Others

• Lean Marine (MANTA Marine): Swedish developer of the FuelOpt automated fuel optimization system, distributed by LYEN. As a partner and adjacent player, its product is core to LYEN's integrated propulsion value proposition and competes with similar offerings from other marine software vendors.

Regional players

• Hyundai Hi-Pro: South Korean marine engine and thruster manufacturer serving primarily Korean shipbuilders (HHI, Samsung Heavy, Daewoo). Competes with LYEN in CPP/thrusters but in a different geography dominated by Korean yards.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds2 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 Lyen Marine