What SEAM does

SEAM AS, headquartered in Avaldsnes (Karmøy), Norway, designs, engineers, produces, and commissions integrated low- and zero-emission power and automation systems for the maritime industry. Its core platform is the proprietary e-SEAMatic® open-architecture automation system, supported by the e-SEA® hardware family of drives, switchboards, battery systems, shaft generators, bridge solutions, and shore-connection equipment. The platform unifies IAS, EPMS, PROCOS, and the Cronolog digital fleet-monitoring layer to control and optimize diesel-electric, hybrid, fully electric, hydrogen fuel cell, and ammonia fuel cell vessel architectures, and it underpins turnkey project deliveries that span concept development, in-house production, factory acceptance testing, commissioning, and 24/7 lifecycle service.

The company serves five maritime segments — cruise and ferry (75+ vessels), offshore (24+), aquaculture (24+), merchant/short-sea (11+), and tug boats — with anchor customers including Norled, Fjord1, Boreal Sjø, Solstad Offshore, Eidesvik Offshore, Siem Offshore, Simon Møkster, Skansi Offshore, Arriva Shipping, Berge Rederi, and Vard. Documented outcomes include 20–30% fuel and emissions reductions during dynamic positioning operations and 21% average fuel savings across hybrid retrofits. SEAM holds an estimated 40% market share in Norway's maritime electric and hybrid-battery sector and serves more than 35% of the Norwegian ferry market.

SEAM operates a direct enterprise sales model with no resellers, quoting custom-engineered systems per vessel project on multi-year contract cycles, supplemented by recurring aftermarket revenue from service agreements, spare parts, training, and field support. The company has roots dating to 1988 (ABB Marine in Ølensvåg), was rebranded SEAM under Longship Fund II ownership in 2021, acquired Austevoll Elektro AS in December 2024 to bring production in-house, and was acquired by Hanwha Engine (Hanwha Group) for approximately US$197M in April 2026, with engineering, production, and customer support remaining based in Norway.

Name

SEAM

Legal name

SEAM AS

Website

https://seam.no

Company type

Private

Founded year

1988

Operating status

Operating

Headcount range

101–250 employees

Short description

SEAM AS designs and delivers integrated power and automation systems for electric, hybrid, and alternative-fuel vessels, serving maritime operators in cruise and ferry, offshore, aquaculture, merchant, and tug segments primarily from Norway.

Ownership category

akta.pro rank

Product category

Marine Electrical Systems and Vessel Automation

NAICS

Ship Building and Repairing (336611), Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (334511)

SIC

Ship & Boat Building & Repairing (3730)

akta.pro primary industry

Marine Hybrid & Electric Propulsion Systems (IMAJAHAC)

akta.pro secondary industries

Propulsion Control, Monitoring & Automation (ECS, PMS interface) (IMAJAHAH), Retrofits & Modernization (Scrubbers, Ballast Water, Alternative Fuels, Energy-Saving Devices) (IMAJAFAH), Electrical, Automation & Navigation MRO (Power, Controls, Comms, ECDIS/Radar) (IMAJAFAD), Propulsion MRO, Spares & Field Service (Overhauls, retrofits, upgrades) (IMAJAHAN)

Keywords

• Marine power systems
• Vessel automation solutions
• Hybrid propulsion systems
• Zero-emission shipping
• Marine electrical engineering

Headquarters

HQ city

Haugesund

HQ country

Norway

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Integrated Maritime Power & Automation Systems: SEAM designs, engineers, produces, and commissions complete integrated power and automation systems for vessels. Revenue is generated through project-based system sales encompassing concept development, engineering, hardware delivery (batteries, drives, switchboards, automation systems), installation, commissioning, and SAT. Both newbuild projects and retrofit installations are served.
2. Aftermarket Services, Support & Maintenance: SEAM generates recurring revenue through lifecycle services including 24/7 support and monitoring, field service engineering, spare parts, training, warranty, and service agreements (service agreements, frame agreements, spare parts agreements, extended warranty). Services include switchboard modifications, generator retrofitting, drive retrofitting, classification survey testing, FMEA testing, and troubleshooting.
3. Charging Infrastructure: SEAM designs and delivers shore charging solutions alongside propulsion systems, including megawatt charging systems (MCS) and automated pantograph systems. Revenue from charging hardware, installation, and commissioning for ports and vessels.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

SEAM designs, engineers, produces, and commissions integrated low- and zero-emission power and automation systems for maritime vessels, including the e-SEAMatic® automation and energy management platform, e-SEA® hardware (drives, switchboards, bridges, battery systems, shaft generators, shore connections), and the Cronolog fleet monitoring platform. The company delivers complete systems for hybrid, fully electric, and alternative fuel (hydrogen, ammonia) vessels across cruise/ferry, offshore, merchant, aquaculture, and tug segments, complemented by aftermarket service agreements, spare parts, training, and 24/7 support.

Product overview

SEAM offers a modular platform architecture centered on the e-SEAMatic automation platform, which integrates multiple subsystems for zero-emission maritime operations. The core product suite includes e-SEAMatic IAS (Integrated Automation System), e-SEAMatic EPMS (Energy and Power Management System), e-SEAMatic PROCOS (Propulsion Control and Safety Systems), e-SEA Bridge (bridge control and navigation), e-SEA Drive (power electronics), and e-SEA Switchboard (power distribution). These are complemented by the Cronolog fleet monitoring platform and custom automation solutions. The e-SEAMatic BLUE platform combines battery systems, power electronics, and control systems into a unified solution for hybrid and fully electric vessels. Products support vessel segments including cruise and ferry, offshore, merchant, aquaculture, and tug boats.

Differentiator

Problem solved

Functional benefit

Products and services

• e-SEAMatic® IAS (Integrated Automation System) Open-architecture integrated automation platform handling all control and monitoring demands onboard vessels, consolidating 400+ applications across safety, propulsion, power, and monitoring into one logical interface with redundancy, self-diagnostics, and software safety analysis. Sold as a standalone system to shipyards and vessel owners for newbuild and retrofit projects across cruise/ferry, offshore, merchant, aquaculture, and tug segments.
• e-SEAMatic® EPMS (Energy and Power Management System) Energy and power management system providing automatic control of power flow between batteries, generators, propulsion systems, and onboard consumers across diesel-electric, hybrid, fully electric, hydrogen fuel cell, and ammonia fuel cell vessels. Includes standard peak shaving and load balancing functionality. Sold to maritime operators and shipyards for newbuild and retrofit projects.
• e-SEAMatic® PROCOS (Propulsion Control & Safety Systems) Control, safety, and monitoring systems for propulsion and maneuvering delivered as standalone or segregated autonomous subsystems: PCS (Propulsion Control System), TCS (Thruster Control System), RCS (Rudder Control System), and ACS (Azimuth Control System). Features include command transfer, synchro levers, pitch/speed/load control, load sharing, and overload protection. Sold to shipyards and vessel operators globally.
• e-SEA® Bridge Integrated bridge control and navigation solutions including remote systems, control desks, and navigation consoles with ergonomic workplace configuration, common dimming control, and integration of third-party equipment (lights, CCTV, wipers). Developed with navigators for safe, ergonomic human-machine interaction. Sold as standalone bridge packages for newbuilds and retrofits.
• e-SEA® Drive (Marine Drive Systems) Compact marine power electronics for efficient energy conversion across all marine applications, available in multiple power ratings including 900 kVA for hybrid power management. Optimized software architecture delivers higher energy efficiency while reducing weight and space. Sold directly to vessel operators and shipyards for propulsion, cranes, pumps, winches, and similar applications.
• e-SEA® Switchboard Marine switchboards and power distribution equipment including main and emergency switchboards, distribution boards, starters, motor control centers (MCCs), and shore-connection cabinets for onboard power distribution and shore-side high-voltage connection. Sold to shipyards and vessel operators as part of newbuild and retrofit installations.
• e-SEA® Battery Systems Modular battery energy storage systems for hybrid and fully electric vessels with various configurations from 248 kWh to 4,672 kWh capacities, integrated through the e-SEAMatic EPMS for peak shaving and load balancing. DNV and ABS certified. Sold directly to vessel operators and shipyards for newbuild and retrofit installations.
• e-SEA® Shaft Generator Shaft generator system (e.g., 900 kW at 1200/1500 rpm) enabling vessels to produce electricity efficiently from the main engine, reducing the need for auxiliary generators. Integrated with the e-SEAMatic EPMS for optimized energy management. Sold to shipyards and vessel operators as part of integrated hybrid systems.
• Cronolog (Fleet Data and Performance Monitoring Platform) Digital fleet data and predictive performance monitoring platform comprising Cronolog Edge (onboard data collection from the integrated automation system), Cronolog Cloud (secure shore-side data access with analyzed contextual insights), and Cronolog Hardware (shore-side analysis tools for performance analysis and maintenance planning). Enables predictive maintenance by identifying issues before unplanned downtime. Sold to maritime operators for fleet-wide monitoring.
• e-SEAMatic® BLUE (Zero-Emission Solutions Platform) Integrated zero-emission platform combining e-SEA® Drive, switchboards, battery systems, shore charging, and fuel cells into one unified control system via EPMS. Supports battery-electric, hybrid, hydrogen fuel cell, and ammonia fuel cell vessel operations. Designed for both newbuilds and retrofit installations. Sold as turnkey packages such as the e-SEAMatic BLUE package delivered to Boreal Sjø (2232 kWh batteries, IAS, EPMS, switchboards, drives, transformers, Zinus DC charging).
• e-SEA® Shore Connection and Charging Infrastructure Shore power connection and charging systems enabling zero-emission port stays, allowing vessels to shut down engines and connect to local grid for operations and battery charging. Includes megawatt charging systems (MCS) and automated pantograph systems. Shore-connection cabinets range from 500 to 100 kVA, built to NEC IEC/PAS 80005-3 standards, with the ability to connect up to four vessels simultaneously via 10 or 20 ft ISO containers. Sold to ports and vessel operators.
• Custom Automation Solutions Tailor-made, custom-engineered products addressing unique maritime operational demands for specific customer requirements in both new-build and retrofit projects. Sold as standalone engineering deliverables to maritime operators and shipyards.
• Aftermarket Services, Support & Maintenance Lifecycle services including 24/7 support and monitoring, field service engineering, spare parts, training, warranty, and long-term service agreements (frame agreements, spare parts agreements, extended warranty). Specialized tasks include switchboard modifications, generator and drive retrofitting, classification survey testing, FMEA testing, infrared thermography, and troubleshooting. Sold to existing SEAM system owners across all maritime segments.

Quantifiable outcome

• 20–25% fuel savings during DP operations (Skansi Offshore Kongsborg hybrid system)
• +7 more outcomes

Named customers12 records

Segments5 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability4 records

Feature11 records

Partnerships

Nine partnerships are on record, tiered flagship, core and minor.

• Hanwha Engine (Hanwha Group)flagshipStrategic or Co-development Partner · 1 April 2026Hanwha Engine, a division of South Korean conglomerate Hanwha Group, completed its acquisition of SEAM for US$197 million in April 2026 (deal struck December 2025). SEAM will be merged with Austevoll Elektro (acquired by SEAM in December 2024) to combine Hanwha's dual-fuel engine technology with SEAM's electric propulsion and power automation systems. Engineering, production, and customer support remain based in Norway, which Hanwha views as the operational and technological centre of the combined organization. This is the first entry by a South Korean company into the Northern European maritime technology market.
• Austevoll Elektro AScoreStrategic or Co-development Partner · 1 December 2024SEAM acquired Austevoll Elektro in December 2024, adding in-house production capacity. Austevoll Elektro was a maritime electrical services provider similar to SEAM's operations. The acquisition was part of SEAM's vertical integration strategy to bring production capabilities in-house ahead of the Hanwha acquisition. Austevoll Elektro was merged with Hanwha's existing operations following the Hanwha acquisition.
• ZeabuzminorStrategic or Co-development Partner · 1 January 2024SEAM joined Zeabuz and Torghatten in the Haugesund Autonomous City Boat Project, contributing its automation and power management technology for autonomous urban water transport.
• TorghattenminorStrategic or Co-development Partner · 1 January 2024SEAM joined Zeabuz and Torghatten in the Haugesund Autonomous City Boat Project, contributing its automation and power management technology for autonomous urban water transport.
• Amogy Inc.coreStrategic or Co-development Partner · 1 January 2023SEAM and Amogy are collaborating on the ammonia-to-power retrofit of a 1957 tugboat (NH3 Kraken). SEAM delivers the e-SEAMatic® BLUE package including power system, integrated automation system, safety system, battery system, and electric motor for main propulsion. Amogy provides the ammonia-to-power technology. Other collaborators include C-Job (ship designer), Yara Clean Ammonia, Corvus (ORCA® batteries), and Feeney Shipyard.
• AarbakkecoreStrategic or Co-development Partner · 1 January 2023SEAM partnered with Aarbakke and Norled to develop SHIFTR — an autonomous battery swap robot for express boats. Aarbakke is building the prototype of the robotic battery swap system. SEAM delivers the control system, battery containers (4 x 1MWh), vessel carousel with automation, and cooling/heating systems. The system enables battery swap in approximately 3 minutes for continued high-speed operations.
• NorledcoreStrategic or Co-development Partner · 1 January 2022Norled is a long-term customer and innovation partner of SEAM. SEAM has delivered multiple vessels for Norled including the world's first hydrogen ferry (MF Hydra), express ferries with hybrid systems, and is co-developing the SHIFTR autonomous battery swap robot. Norled coined the 'Autonomous Battery Swap' concept (patent pending) and initiated the partnership with SEAM for its development.
• Solstad OffshorecoreStrategic or Co-development Partner · 1 January 2019Solstad Offshore is a key customer and long-term partner, having retrofitted 10 offshore vessels with SEAM's e-SEAMatic® BLUE hybrid systems between 2019 and 2023. SEAM supports Solstad's 'Solstad Green Operations' campaign targeting 50% emission reduction by 2030 and net zero by 2050. SEAM delivers hybrid systems, energy management, drives, shore connections, batteries, and implements DNV battery (power) notation.
• Westcon YardsminorImplementation/ SI/ Consulting PartnerWestcon Yards, one of Norway's largest shipyards, has been a key partner for SEAM on multiple vessel retrofit projects including Stril Mar and other hybrid conversions. Westcon's efficiency and problem-solving capabilities were credited for successful project completions.

Scale indicators8 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• ABB Marine & Ports: ABB provides integrated marine automation, propulsion, and power systems with a global installed base across commercial shipping, offshore, and naval markets. It is the most direct competitor to SEAM — and notably, SEAM traces its engineering lineage to ABB Marine in Ølensvåg, making it a near-twin in platform philosophy and customer base.
• Wärtsilä: Wärtsilä is a global leader in marine propulsion, hybrid and dual-fuel engines, and energy storage systems for vessels (e.g., its hybrid modules and battery systems). It competes head-to-head with SEAM in hybrid and zero-emission vessel projects across ferry and offshore segments.
• Kongsberg Maritime: Kongsberg Maritime supplies integrated automation, propulsion control, dynamic positioning, and hybrid/electric vessel systems. Its Hybrid Power and Energy Management (PEM) product directly competes with SEAM's e-SEAMatic® EPMS and PROCOS, especially in offshore and naval vessel projects.
• Danfoss Editron: Danfoss Editron manufactures marine power-conversion systems, drives, and energy management solutions for hybrid and fully electric vessels. Its drives and converters compete directly with SEAM's e-SEA® Drive and EPMS platform in marine electrification tenders.
• Yaskawa Environmental Energy / The Switch: The Switch (Yaskawa Environmental Energy) produces marine drives, generators, and power electronics for hybrid and electric vessels. Its products overlap directly with SEAM's e-SEA® Drive, shaft generator, and switchboard offerings in commercial and offshore marine markets.

Emerging players

• Corvus Energy: Corvus Energy manufactures marine battery energy storage systems (ORCA® series) used across hybrid and electric ferries and offshore vessels. It is both a SEAM technology partner (ORCA batteries in NH3 Kraken) and an adjacent competitor as operators increasingly evaluate battery suppliers separately from system integrators.
• Brunvoll: Brunvoll provides thrusters, propulsion control, and dynamic positioning systems for marine vessels and is a SEAM integration partner (BuCon DP2 onboard Stril Mar). Its controls and maneuvering systems overlap with SEAM's PROCOS Thruster Control System and integrated automation scope.

Broad incumbents

• Rolls-Royce Power Systems (mtu): Rolls-Royce Power Systems' mtu brand supplies marine propulsion, hybrid, and integrated power systems globally with a much larger installed base than SEAM. It competes across the same vessel segments but with a broader portfolio that includes combustion engines, narrowing SEAM's space to niche electric/automation integrations.
• Siemens Energy: Siemens Energy's marine solutions division supplies electrical systems, drives, automation, and grid-connection technology for vessels — relevant to SEAM's electrical scope (switchboards, drives, power management) — though with a portfolio that extends well beyond maritime.
• VARD (Fincantieri): VARD is a major Norwegian-based shipyard and system integrator for offshore, ferry, and specialized vessels, and a long-term SEAM customer/partner (delivered Viking Lady, Viking Energy, and hybrid newbuilds with SEAM packages). As a vertical integrator it competes at the systems-integration level on large newbuild tenders.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/SeamNorway
• LinkedInlinkedin.com/company/seam-as

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries1 record

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 SEAM