In 2025, Vaisala completed a corporate carbon footprint assessment and publicly disclosed its greenhouse gas (GHG) emissions according to the GHG Protocol, covering Scope 1 (direct emissions from owned or controlled sources), Scope 2 (indirect emissions from purchased energy) and Scope 3 (indirect emissions across the value chain).
Vaisala has also provided a category-level breakdown for 10 out of 15 Scope 3 emissions categories, offering greater transparency into its value chain emissions.
| Metric (tCO2e) | 2025 | 2024 | 2023 | 2022-2019 |
|---|---|---|---|---|
Total Scope 1 | 430a | 545a | 398b | |
Total Scope 2 | ||||
Market-Based | 26a | 18a | 80b | |
Location-Based | 1,360a | 1,767a | 2,587b | |
Total Scope 3 | 92,009a | 103,609a | 75,868b | |
Total Scope 1 Revenue Intensity (tCO2e/$M) | 0.6128a | 0.9276a | 0.6654b |
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In 2025, the total operational greenhouse gas (GHG) emissions of Vaisala amounted to 1,790 metric tons of CO2 equivalent. This figure includes both direct emissions from owned or controlled sources (Scope 1) and indirect emissions from purchased energy (Scope 2).a
Compared to 2024, the total operational greenhouse gas (GHG) emissions of Vaisala decreased by 22.58%, showing that the company has made progress in taking action to reduce the climate impact of its operations.a
In 2025, the total Scope 1 emissions of Vaisala were 430 metric tons of CO₂ equivalent (tCO₂e).a
Since 2021, Vaisala's Scope 1 emissions have decreased by 12.07%, reflecting a declining long-term trend in Scope 1 emissions over time.a
Compared to the previous year (2024), Vaisala's Scope 1 emissions decreased by 21.1%, highlighting the company's efforts to lower direct emissions from assets it owns or controls.a
In 2025, Vaisala reported Scope 2 greenhouse gas (GHG) emissions of 26 tCO₂e using the market-based method and 1,360 tCO₂e using the location-based method.a
Since 2021, Vaisala's Scope 2 greenhouse gas (GHG) emissions (Location-Based) have decreased by 36.63%, reflecting a declining long-term trend in Scope 2 emissions over time.a
Compared to the previous year (2024), Vaisala's Scope 2 emissions (Location-Based) fell by 23.03% in 2025, showing that the company has made progress in taking action to reduce the climate impact of its energy consumption.a
In 2025, Vaisala reported its Scope 2 emissions using the market-based method and using the location-based method.a
In 2025, Vaisala reported 92,009 metric tons of CO₂ equivalent (tCO₂e) of Scope 3 greenhouse gas (GHG) emissions, representing indirect emissions across its upstream and downstream value chain.a
The 2025 disclosure of Vaisala includes a breakdown across 10 of the 15 Scope 3 categories defined by the GHG Protocol, matching the level of disclosure in 2024, demonstrating consistent Scope 3 emissions reporting coverage year over year.a
In 2025, Vaisala reported total Scope 3 emissions of 92,009 metric tons of CO₂ equivalent (tCO₂e).a
Approximately 56.32% of these emissions originated from upstream activities such as purchased goods and capital goods, while 43.68% came from downstream activities like product use, distribution, and end-of-life treatment.a
Since 2021, Vaisala's Scope 3 emissions have decreased by 10.71%, reflecting a declining long-term trend in Scope 3 emissions over time.a
Compared to the previous year (2024), Vaisala's Scope 3 emissions decreased by 11.2%, highlighting the company's efforts to lower indirect emissions from its value chain.a
In 2025, Vaisala reported emissions for 10 out of the 15 Scope 3 categories defined by the GHG Protocol.a
This reflects a high level of granularity and transparency in the company's emissions reporting.
In 2025, the largest contributors to Vaisala's Scope 3 emissions were:a
In 2025, Vaisala reported Scope 1 greenhouse gas (GHG) emissions of 430 tCO₂e and total revenues of USD 702 millions. This translates into an emissions intensity of 0.61 tCO₂e per millions USD.a
In 2025, Vaisala reported a Scope 1 emissions intensity of 0.61 tCO₂e per millions USD. Compared to the peer group median of 1.9, this places the company below its industry benchmark, indicating it is more carbon-efficient than most competitors.a
In 2025, Vaisala ranked 4 out of 25 companies in its industry peer group, based on Scope 1 emissions intensity (measured in tCO₂e per millions USD).a
This places Vaisala among the top performers, with one of the lowest emissions intensities relative to peers.a
In 2025, Vaisala reported a total carbon footprint of 93,799 metric tons of CO₂ equivalent (tCO₂e) across Scope 1, Scope 2, and Scope 3 emissions. This represents a 11.44% decrease compared to 2024, indicating progress in reducing its overall greenhouse gas output.a
The largest contributor to Vaisala's total carbon footprint was Scope 3 emissions, accounting for 98.09% of the company's total carbon footprint, followed by Scope 2 emissions at 1.45%.a