Review by the President and CEO

Vaisala’s President and CEO Kai Öistämö

“The year 2025 was shaped by uncertainties and shifting market conditions. Currency fluctuations and tariffs presented challenges in the business environment, while the slowdown in wind resource assessment markets affected our net sales. In this changing market environment, Vaisala and our employees showed resilience and delivered solid performance. Industrial Measurements returned to growth, Xweather subscription sales increased, and we delivered on our strong order book in meteorology and aviation markets. We mitigated the impacts of US tariffs, partially offset currency fluctuations, and managed the impact of the decline in the renewable energy business on our result.

Our order intake for 2025 declined by 9% from the previous year, primarily due to weak demand in the renewable energy market and the normalization of meteorology and aviation markets after exceptionally high levels over the past two years. Order intake in Industrial Measurements remained strong throughout the year. Vaisala’s net sales for 2025 increased by 6% year-on-year, driven by strong growth in Industrial Measurements, and expanding subscription sales and large project deliveries in Weather and Environment. Our profitability remained solid, with an EBITA margin of 15.8%, including EUR 4.9 million of one-off costs mainly related to organizational restructurings.

In the fourth quarter, our order intake increased by 5% (10% in constant currencies) compared to the previous year. This growth was driven by continued strong demand in Industrial Measurements. In Weather and Environment, order intake was close to the previous year’s level. We closed the year 2025 with a EUR 185.8 million order book. Our fourth quarter net sales decreased by 3% (0% in constant currencies) due to strong comparison period and impacts of the depreciation of the US dollar and Chinese yuan. EBITA margin decreased to 16.1% following the lower net sales and gross margin.

Our strategy execution advanced well in 2025, as we continued to strengthen our position as a global leader in measurement instruments and intelligence for climate action. The Industrial Measurements business area delivered strong results, reaching a record-high order intake and net sales. We further enhanced our Industrial Measurements portfolio, introducing new products and services for growth industries.

In the Weather and Environment business area, we delivered on our strong order book in meteorology and aviation markets, maintaining market leadership with a clear focus on profitability. Significant decline in the renewable energy market impacted on our business, with a EUR 20 million estimated negative impact on our net sales. Still, full-year net sales for Weather and Environment grew 4% in constant currencies, supported by large project deliveries and growing subscription sales.

We expanded our Xweather subscription business and successfully integrated the WeatherDesk and Speedwell Climate acquisitions (completed in Q4/2024) into the Xweather team. Subscription sales increased by 50% in 2025, with organic growth in constant currencies at 11%.

As we enter 2026, we anticipate continued positive development in the Industrial Measurements business area, driven by expected growth especially in life science, data center, semiconductor, and power markets. In the Weather and Environment business area, we expect markets for Xweather subscription sales to continue growing during 2026. In the traditional Weather and Environment business, meteorology and aviation markets have normalized, and we expect these markets to remain stable in 2026. Renewable energy markets experienced a downturn in 2025, and we expect these markets to remain stable compared to the 2025 year-end level.

We anticipate that the market uncertainties will continue also in 2026. Vaisala has shown resilience and adaptability to perform and grow in a constantly changing environment. We estimate that our 2026 net sales will be in the range of EUR 600–630 million and our EBITA will be in the range of EUR 95–110 million.”

Financial Statement Release January–December 2025, February 12, 2026