Summa Defence Oyj
Summa Defence Oyj is a Finnish defense and security technology group built around a portfolio of industrial companies serving defense, dual-use, infrastructure, and marine end markets. Its business includes land technology, marine technology, and new technologies through subsidiaries such as Lännen Tractors, Aquamec, Uudenkaupungin Työvene, IntLog, LightSpace Group, and Summa Drones.
Fiscal year 2025 · change from previous year
Development 2022–2025
Business
Share of revenueMobile machines, dredgers, and field equipment used in infrastructure, waterworks, and defense applications.
Design and construction of professional vessels and ships for commercial and public-sector use.
Drone-related and other dual-use technology solutions developed for defense and security needs.
Modular space and field solutions supplied through IntLog and related operations.
Customers
Customers include defense and security users, public-sector buyers, infrastructure and water-construction contractors, and industrial customers needing specialized equipment. The group also serves private and business customers through modular space solutions and selected industrial products. Demand is driven by mission-critical use cases where reliability, mobility, and customization matter more than standard off-the-shelf equipment.
Buy dual-use machines, drones, and technology that support operational readiness and resilience.
Buy dredgers, mobile machines, and vessels for water management, environmental work, and infrastructure projects.
Buy specialized equipment for earthmoving, water construction, and site operations.
Buy custom-built aluminum and steel vessels for professional and public uses.
Buy space modules and field modules for temporary or permanent use cases.
Strategy
The group’s strategy is to build an industrial platform for defense and dual-use SMEs and help them scale through shared ownership, technology, and operating capabilities. It emphasizes combining traditional industrial know-how with newer technologies such as AI and drones, while developing businesses that can serve both civilian and defense end markets. The portfolio structure is intended to create cross-selling, technical depth, and access to larger project opportunities than the individual companies could pursue alone.
A broader industrial base can improve market access and project capability across defense and security end markets.
New technology offerings can differentiate the group and create higher-value solutions for defense customers.
Export markets diversify demand and support larger addressable markets for specialized equipment.
Geography
Summa Defence is headquartered in Finland and its operating base is centered there, with key industrial activities in places such as Uusikaupunki and other Finnish sites. Aquamec sells internationally and its Watermaster products are used in more than 85 countries, giving the group a broad export footprint. The business is therefore exposed to both domestic public-sector demand and international project markets, with foreign-currency and geopolitical exposure tied to its export-oriented subsidiaries.
Risks
The group is exposed to project concentration, execution risk in specialized manufacturing, and demand swings in defense, infrastructure, and marine markets. Its report also highlights material financial risk around liquidity and working-capital sufficiency, plus currency exposure and conflict-related uncertainty for drone-related activities. Because the portfolio includes capital-intensive industrial businesses, supply-chain, personnel, and intellectual-property risks can also affect delivery and competitiveness.
- Working-capital and liquidity shortfallImpact: CriticalLikelihood: High
The report states current working capital is not sufficient without new financing or payment arrangements.
Exposure: Group-wide
- Project concentrationImpact: HighLikelihood: Medium
A dependence on large projects can materially affect revenue timing and profitability if orders are delayed or canceled.
Exposure: Industrial and marine businesses
- Drone technology and conflict exposureImpact: HighLikelihood: Medium
The report notes specific risks tied to drone production ramp-up and the impact of wars and conflicts.
Exposure: Summa Drones and related technologies
- Raw-material and supply availabilityImpact: MediumLikelihood: Medium
Production costs and delivery schedules depend on the availability and pricing of materials and components.
Exposure: Manufacturing subsidiaries
- Foreign exchange volatilityImpact: MediumLikelihood: Medium
International sales and purchases create exposure to changes in exchange rates versus the euro.
Exposure: Export-oriented subsidiaries
- Intellectual property protectionImpact: MediumLikelihood: Medium
The group relies on proprietary designs and technology, making IP protection important to competitiveness.
Exposure: Technology and equipment businesses
Accounting
Judgemental itemsThe 2025 transaction materially changed the group structure, limiting year-on-year comparability.
Impact: Reported revenue, assets, and expenses reflect a different group composition than prior periods.
Industrial and technology assets may require impairment if demand, margins, or project pipelines weaken.
Impact: Could affect goodwill, fixed assets, and equity.
The report discloses guarantees, residual value commitments, and buyback commitments.
Impact: Can affect liabilities and cash flow expectations.
Manufacturing, shipbuilding, and office operations typically use leased premises and equipment.
Impact: Affects EBITDA-style metrics, assets, and lease liabilities.
International operations and export sales create translation and transaction effects.
Impact: Can move reported profit and balance sheet values.
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Last updated: 24/09/2026