LST Marine
Values
Purpose
Vision
Our goal is to be the leading provider of marine electrification solutions in our market
Marine projects
Turnkey
Turnkey Solutions for the Maritime Industry
At LST, we provide complete, high-quality turnkey / EPC / EPCM solutions for the maritime industry. From design to delivery, we ensure smooth execution, cost efficiency, system integration and maintenance aspects.
With over 30 years of experience in complex maritime projects, we specialize in tailored technical areas and electrification projects that meet the highest industry standards—ensuring your vessel operates at peak efficiency.
Our Expertise Covers:
- Main Switchboard Rooms
- Power Distribution Areas
- Data Centers
- Engine Control Rooms & Wheelhouses
- Technical Conversions projects
Our Key Disciplines:
We bring together a wide range of specialized skills to deliver optimal results:
- Naval Architecture
- Basic & Detailed Engineering (Mechanical & Electrical)
- Steel Outfitting (Structures, HVAC, Piping)
- Prefabrication
- Electrical Outfitting
- Interior Outfitting
Our Project Management Approach:
Using the PMI (Project Management Institute) framework, we ensure structured and efficient execution:
Initiation & Planning – Defining scope and developing a strategic plan.
Execution – Implementing solutions with full compliance and safety.
Monitoring & Control – Tracking performance in real time to maintain quality and budget.
Closure – Conducting final inspections for a smooth handover.
We Ensure:
✔ Seamless Project Integration
✔ Strict Scope & Time Management
✔ Cost Control
✔ High Standards
✔ Expert Workforce
✔ Clear Communication
✔ Risk Mitigation
Why Choose LST?
✅ Turnkey Expertise – We manage every step, from design to final inspection.
✅ Proven Track Record – Decades of success in demanding maritime projects.
✅ On-Time, On-Budget – Reliable execution with precise cost control.
✅ Customized Solutions – Tailored technical workflows for your specific needs.
✅ Full-Scale Electrification – Comprehensive electrical systems for all vessel types.
Let LST simplify your project, cut costs, and deliver superior maritime electrification solutions on time, every time. Turnkey Solutions for the Maritime Industry
Electrification
As specialists in marine electrification, we deliver complete, high-performance electrical solutions tailored to each vessel’s unique needs. From project initiation to final commissioning, our team ensures seamless execution and cost efficiency.
With over 60 years of industry expertise, we integrate the latest technologies while adhering to the highest maritime safety and performance standards.
Areas We Cover:
- Machinery Areas
- Main Engine Rooms
- Main Switchboard Rooms
- Sun Decks & Outdoor Areas
- Cargo Areas
- Engine Casings
- Staircases & Public Spaces
- Spas & Recreational Areas
- Conference Rooms & Meeting Areas
- Special Vessels
- Workboats
- Upgrades and retrofit projects
Our Electrification Services:
🔹 Project Planning & Management
🔹 Electrical Engineering and system integration
🔹 Material Procurement & Logistics.
🔹 Electrical Installations
🔹 Testing & Commissioning
🔹 Final Handover & Documentation
We specialize in full-scale ship electrification, ensuring reliable and high-performance systems that keep your vessel operating at its best—now and in the future.
Engineering
Engineering Projects
With over 30 years of experience, LST Engineering specializes in providing electrical engineering projects. We make the design and planning process seamless, ensuring smooth communication throughout the project via a dedicated contact person. From initial planning to commissioning, we manage the entire project lifecycle. With our extensive expert network, we successfully execute large-scale engineering projects.
Our maritime projects references cover:
- Area engineering for cruise ships and ferries
- Special vessels and workboats
- Automation, navigation and communication systems
- Upgrades and retrofit projects
Our Commitment:
At LST Engineering, we pride ourselves on our ability to deliver high-quality engineering solutions tailored to your needs. Our extensive experience and dedication to excellence make us the ideal partner for your next project.
Product development
Product Development
With 30 years of experience, LST Marine has a proven track record of success in numerous product development projects. Our comprehensive in-house capabilities including engineering, production and field services make us the ideal partner for innovative product development.
Our product development expertise covers:
- Marine systems
- Automation systems
- Control cabinets
- Luminaires
- Mounting solutions
Our product development services include:
- System Design (PI diagrams, circuit diagrams, dimensioning)
- Mechanical Design
- Classification
- Prototypes
- Installation and Testing
- Manuals and Training
At LST Marine, we ensure every product is developed to meet the highest industry standards, with a focus on functionality, safety, and efficiency.


Marine electrification services
Installation
Ship Electrical Installations
With over 60 years of experience in ship electrification, LST offers comprehensive and reliable electrical installation services for various vessel types, including cruise ships, ferries, special vessels, and workboats, globally. Our trained and skilled employees are the core of our business. Our wellknown competence and work ethics originate from finnish shipyards.
Our Comprehensive Services Include:
🔹 Electro-Mechanical Installations
🔹 Installation of Fittings
🔹 Cabling
🔹 Connection
🔹 Finalizing
🔹 Commissioning
🔹 Troubleshooting
🔹 Retrofit & Upgrades
🔹 Switchboard modifications
Our electrical installations ensure that all systems across the vessel are integrated seamlessly, providing long-term operational reliability and compliance with industry standards, wherever your vessel operates.
Specialist services
Specialist Services
LST Marine is your trusted partner in on-site electrification and automation services. We manage the entire process from design to delivery, ensuring that every phase meets the highest standards.
Project Engineering and Advisory Services:
- Design Reviews
- Project Planning
- Material Collection
- Progress Follow-Up
- Installation Guidance – We lead and advise on installation work, ensuring quality and compliance.
- Inspections
- Final Documentation
Commissioning & Startups:
- Test Protocols
- Electrical Test Measurements
- IO-Tests & Field Device Testing
- System Startups & Adjustments – We execute system startups, make necessary adjustments, and ensure balanced performance.
Systems We Specialize In:
LNG Systems, Alternative Fuels, Battery Systems
PA/GA, Fire Detection, CCTV, Communication Systems
Power Plants, Auxiliary Systems, Electrical Distribution
Main & Auxiliary Engines, Generators, Frequency Converters, Scrubbers
HVAC, Lighting, Show & Entertainment Systems
Engineering
LST Marine Engineering Services
With over 30 years of expertise, LST Engineering specializes in delivering high-quality electrical engineering services tailored to the maritime industry. In addition to comprehensive project execution, we offer specialized engineering services under a consulting principle, providing flexible and precise solutions.
Our engineering services cover:
- Area Engineering for cruise ships and ferries
- Engineering for Special Vessels and Workboats
- Design and integration of Automation, Navigation, and Communication Systems
- Upgrades and Retrofit Projects
Our Engineering Services include:
- Basic Engineering (Guidelines and instructions, Location and arrangement drawings, Single line diagrams, Layout diagrams, System diagrams, Cable route diagrams, Power system calculations, - Illumination level and Heat balance calculations)
- Detail Engineering (Circuit diagrams, Cabling and connection diagrams, Device and consumer lists, IO-lists, PLC Programming)
- Test Protocols
- As-Built Documentation
At LST Engineering, we focus on delivering detailed and accurate engineering solutions, ensuring safety, efficiency, and compliance with industry standards at every stage.
Repair and upgrades
LST Service offering available in Finnish
https://www.lst.fi/
Ville Lehto
Toimitusjohtaja
LST Service Oy
Motor repair
LST Service offering available in Finnish
https://www.lst.fi/
Ville Lehto
Toimitusjohtaja
LST Service Oy
Product development
With 30 years of experience, LST Marine has a proven track record of success in numerous product development projects. Our comprehensive in-house capabilities including engineering, production and field services—make us the ideal partner for innovative product development.
Our product development expertise covers:
- Marine systems
- Automation systems
- Control cabinets
- Luminaires
- Mounting solutions
Our product development services include:
- System Design (PI diagrams, circuit diagrams, dimensioning)
- Mechanical Design
- Classification
- Prototypes
- Installation and Testing
- Manuals and Training
At LST Marine, we ensure every product is developed to meet the highest industry standards, with a focus on functionality, safety, and efficiency.
Service agreements
LST Service offering available in Finnish
https://www.lst.fi/
Ville Lehto
Toimitusjohtaja
LST Service Oy

Marine mechanical services
Mechanical workshop
LST Service offering available in Finnish
https://www.lst.fi/
Ville Lehto
Toimitusjohtaja
LST Service Oy
Field services
LST Service offering available in Finnish
https://www.lst.fi/
Ville Lehto
Toimitusjohtaja
LST Service Oy
Mechanical engineering
Mechanical Engineering Services
With over a decade of experience, LST Marine excels in delivering top-notch mechanical engineering services tailored for the maritime industry. Our practical and holistic approach ensures that our designs are not only efficient but also easy to build, maintain, and optimize for long-term cost savings.
Our Mechanical Engineering Services Include:
- Concept Design (3D modelling, system diagrams, concept calculations)
- Detail Design (Equipment Lists, Equipment Foundation Drawings, Duct and Pipe Isometrics, Installation Drawings, etc.)
- Cable Routing (3D model, cable routing)
We leverage leading design software such as Cadmatic, Aveva, SolidWorks, and AutoCAD to create highly accurate, efficient, and easily manageable designs. During project execution, we utilize 3D tools to enhance quality, improve precision, and ensure smoother integration of systems.
Service agreements
LST Service offering available in Finnish
https://www.lst.fi/
Ville Lehto
Toimitusjohtaja
LST Service Oy


Marine products
Contract manufacturing
LST Production offers a wide range of products for the marine sector. We work with a broad network of suppliers, allowing us to provide fast deliveries and competitive pricing.
All our products are manufactured according to industry standards and our strict quality requirements.
Our product range includes:
- Electrical cabinets
- Dimming boards
- Control panels
- Cable kits (from prototype to serial production)
- LED profiles
Automation
LST has a wide range of automation-related products. We offer solutions from the control of individual devices to integrated monitoring and alarm systems covering the entire ship.
We mainly use products from the Siemens S7 logic family, which means that marine certificates are always available and the products meet the requirements of the most demanding conditions.
Our delivery always includes system design, programming and commissioning on a turnkey basis.
Trading - LIGHTS
Trading - LST Lights
LST has decades of experience in producing lighting solutions for marine use. The products are designed to be durable, robust and easy to maintain in challenging conditions. Various customizations of the products are carried out in collaboration with the customer, from the initial idea to the finished product.
Our product range includes:
- Technical lighting fixtures for engine rooms, car decks and for other technical indoor areas
- Technical lighting fixtures for outdoor areas
- Customized lighting fixtures, designed according to the customer's specifications and requirements
Lassi Kokkala
Myyntipäällikkö
Laivasähkötyö Oy
Trading - Cable trays
Trading - LST Cable trays
LST has established itself as a reliable cable tray supplier for the maritime industry with decades of experience. Our warehouse and large stock levels enables fast deliveries for both small and larger projects, ranging from few meters to kilometers of cable trays. Different fastening parts are also available according to customer´s needs.
Our product range includes:
- LST Z- type cable ladders
- LST Perforated cable tray
Lassi Kokkala
Myyntipäällikkö
Laivasähkötyö Oy
Products and Spare parts
LST Service offering available in Finnish
https://www.lst.fi/
Ville Lehto
Toimitusjohtaja
LST Service Oy
