What Wallenius Marine does

Wallenius Marine is a Swedish maritime company, founded in 1934 and headquartered in Stockholm, specializing in vessel design, energy-efficient shipbuilding concepts, and digital fleet management solutions for the global shipping industry. The company's core product portfolio includes the OVERSEA™ digital vessel performance management platform — formalized as a joint venture with ABB in September 2025 — which combines ABB's Genix™ Industrial IoT and AI Suite with Wallenius Marine's fleet management expertise to collect and analyze vessel data for fuel optimization and emissions reduction. Additionally, through the Oceanbird venture (with Alfa Laval and Wallenius Lines), the company markets the Wing 560, a 40-metre rigid wing sail for wind-assisted propulsion on cargo vessels, offering up to 10-18% fuel savings on North Atlantic routes. The Sleipner concept vessels, co-developed with KNUD E. HANSEN, feature hydrodynamically optimised hulls and dual-fuel LNG/LBG machinery, achieving the highest IMO energy efficiency class (A) rating.

The company operates a B2B enterprise sales model targeting ship owners and operators, generating revenue through subscription-based fleet support services (OVERSEA™), one-time licensing and installation of wind propulsion technology (Wing 560), and vessel design and ship management services. Its primary customer segments are ship owners seeking maritime decarbonization solutions to meet tightening IMO emissions regulations through 2030 and beyond. Wallenius Marine holds engineering and R&D operations in Landskrona, Sweden, for wing sail development, and participates in collaborative innovation projects including the European Space Agency's DECARDIS initiative. The company appears to operate within the broader Wallenius maritime ecosystem, which includes Wallenius Lines and Wallenius Wilhelmsen, though precise ownership structures are not fully clarified in available data.

Name

Wallenius Marine

Legal name

Wallenius Marine

Website

https://walleniusmarine.com

Company type

Private

Founded year

1934

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Wallenius Marine is a Swedish maritime firm specializing in energy-efficient vessel design, digital fleet performance management (via the OVERSEA™ JV with ABB), and wind-assisted propulsion technology (Oceanbird Wing 560), serving global ship owners seeking decarbonization solutions.

Ownership category

akta.pro rank

Product category

Maritime Engineering and Fleet Management Services

NAICS

Ship Building and Repairing (336611), Ship and Boat Building (3366)

SIC

Ship & Boat Building & Repairing (3730)

akta.pro primary industry

Project Management & Owner’s Engineering / Technical Consultancy (Spec Writing, Bid Support, Site Support) (IMAJAGAO)

akta.pro secondary industries

Marine Electrical Installation, Commissioning & Field Services (IMAJAJAL), Propulsion MRO, Spares & Field Service (Overhauls, retrofits, upgrades) (IMAJAHAN)

Keywords

• Maritime vessel design
• Fleet management services
• Wind propulsion technology
• Maritime digital solutions
• Shipbuilding engineering

Headquarters

HQ city

Stockholm

HQ country

Sweden

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Fleet Support Services: OVERSEA™ platform provides fleet support center-as-a-service offering for ship owners and operators globally, leveraging shore-based experts to provide decision-making support
2. Wind Propulsion Technology Sales: Sale and installation of wing sails for retrofit on existing cargo vessels, with commercial orders for Wing 560 wing sails to shipowners

Go-to-market motion1 record

Distribution channels2 records

Marketing channels2 records

Core offering

Wallenius Marine provides complete shipping services spanning vessel design and shipbuilding to ship management and IT services. Its portfolio includes the Sleipner concept of energy-efficient Ro-Ro vessels, the OVERSEA™ digital vessel performance management platform (developed with ABB), and involvement in Oceanbird's Wing 560 rigid wing sail wind propulsion technology. The company delivers decarbonization and operational efficiency solutions to ship owners and operators worldwide.

Product overview

Wallenius Marine operates a portfolio of maritime products comprising the OVERSEA™ digital vessel performance management platform (offering fleet-support-center-as-a-service for ship owners and operators), the Oceanbird Wing 560 rigid wing sail technology for wind propulsion, and the Sleipnir concept vessels featuring energy-efficient designs with dual-fuel capabilities. These offerings span digital solutions, propulsion technology, and ship design to address maritime sustainability and operational efficiency.

Differentiator

Problem solved

Functional benefit

Products and services

• OVERSEA™ Digital Vessel Performance Management A digital vessel performance management solution and fleet-support-center-as-a-service offering for ship owners and operators globally, leveraging ABB's Genix™ Industrial IoT and AI Suite with Wallenius Marine's fleet management expertise to collect and analyze vessel data, enabling operators to reduce fuel consumption and emissions while optimizing safety and reliability. Services are delivered through the OVERSEA™ Fleet Support Center in Stockholm.
• Oceanbird Wing 560 A 40-metre-high rigid wing sail using sandwich construction with a recycled plastic core made from approximately 370,000 PET bottles. Designed to generate thrust by optimizing wind conditions and can be retrofitted to existing cargo vessels over 200 metres, offering up to 10 percent fuel savings with a single wing and up to 18 percent with two wings on North Atlantic routes.
• Sleipner Concept Vessels Energy-efficient vessel design concept co-developed with KNUD E. HANSEN. The first two vessels in this concept, 'Way Forward' and 'Future Way', have achieved the highest IMO energy efficiency class (A) under the Carbon Intensity Indicator (CII) system, ranking among the top 10% globally in their Ro-Ro Vehicle Carrier category. Features include hydrodynamically optimised hulls and dual-fuel machinery for LNG/LBG operation.

Quantifiable outcome

• Up to 10% fuel savings with single wing sail, up to 18% with two wings on North Atlantic routes
• +3 more outcomes

Named customers2 records

Segments2 records

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature3 records

Partnerships

Three partnerships are on record, tiered core and minor.

• ABBcoreStrategic or Co-development Partner · 1 September 2025ABB and Wallenius Marine established a joint venture based in Stockholm, Sweden to expand their OVERSEA™ collaboration launched in September 2022. The joint venture creates a combined digital solution and fleet-support-center-as-a-service offering for ship owners and operators globally, leveraging ABB's Genix™ Industrial IoT and AI Suite along with Wallenius Marine's fleet management expertise.
• European Space AgencyminorStrategic or Co-development Partner · 4 November 2024The European Space Agency launched the DECARDIS project in collaboration with Awake.AI, ABB, and Wallenius Marine to optimize ship-port operations and reduce emissions by promoting just-in-time arrivals and integrating vessel and port data.
• KNUD E. HANSENcoreStrategic or Co-development PartnerKNUD E. HANSEN co-developed the first two vessels in the Sleipner concept ('Way Forward' and 'Future Way') alongside Wallenius Marine, contributing to the hydrodynamically optimised hull designs and dual-fuel machinery integration.

Scale indicators4 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Wärtsilä: Finnish marine technology group offering engine and propulsion systems, vessel performance optimization, and decarbonization services across cargo, offshore, and passenger segments. Closely comparable to Wallenius Marine on ship design, propulsion, and digital fleet support offerings.
• Kongsberg Maritime: Provider of marine automation, navigation, and digital vessel management systems. Directly comparable to Wallenius Marine's OVERSEA™ digital platform and integrated bridge/automation product line for shipowners seeking operational efficiency.
• BAR Technologies: Developer of WindWings rigid sails retrofitted to cargo vessels (notably with Cargill). The most direct competing wind-assist propulsion technology to Wallenius Marine's Oceanbird Wing 560, targeting the same retrofit market for fuel and emissions reduction.

Others

• Lloyd's Register: Maritime classification society offering ship classification, statutory certification, and advisory on energy efficiency and alternative fuels. Adjacent to Wallenius Marine's work on Sleipner concept vessels and CII compliance, and serves overlapping shipowner customers.
• Bureau Veritas Marine & Offshore: Classification and certification body providing marine advisory on decarbonization, new technology qualification, and vessel efficiency. Compares to Wallenius Marine's design and compliance expertise, particularly relevant as wind-assist and dual-fuel designs require class approval.
• MacGregor: Provider of marine cargo handling and load-handling solutions, including Ro-Ro access systems and hatch covers. Adjacent supplier serving the same Ro-Ro and cargo vessel customers that Wallenius Marine targets with its Sleipner designs and wing sail retrofits.
• DNV: Maritime classification society and advisory firm providing decarbonization advisory, CII advisory, and vessel performance services. Comparable to Wallenius Marine's design and compliance work in helping shipowners navigate IMO efficiency regulations and verify performance claims.

Regional players

• Meyer Turku: European shipbuilder (Finland-based, part of Meyer Werft) building cruise, Ro-Pax, and specialized vessels including LNG-fueled ships. Comparable to Wallenius Marine's ship design capability and energy-efficient newbuild concepts, though focused on shipbuilding execution rather than standalone design services.

Broad incumbents

• Alfa Laval: Global marine equipment supplier covering separation, heat transfer, fluid handling, and increasingly decarbonization technologies. Partner in Oceanbird alongside Wallenius Marine, and a broader incumbent providing overlapping efficiency and emissions-reduction equipment to shipowners.
• ABB Marine & Ports: Global incumbent in marine electrical, automation, propulsion, and digital solutions. Partner via the OVERSEA™ JV but also a broader marine technology portfolio competitor to Wallenius Marine in vessel electrification, automation, and digital fleet support.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/WalleniusMarine

Revenue estimate

Valuation estimate

Number of profiles

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 Wallenius Marine