Vaisala sustainability score: 56/100
Vaisala is a Finnish maker of weather, environmental and industrial measurement instruments, headquartered in Vantaa. It had about 2,465 employees and €597 million net sales in 2025.
Head office Vantaa, FinlandStaff ~2,465 (end 2025)Revenue ~€597M (FY2025)Website ↗
Vaisala's total footprint fell 11% in 2025 to about 92,000 tCO2e after three flat years, and all its purchased electricity is renewable. Its SBTi-approved targets cut its own emissions 52% by 2030 in absolute terms, but cover value-chain emissions, over 99% of the total, only per euro of value added. It treats water, waste and biodiversity as not material and publishes no figures for them.
Vaisala scores 56/100 (Making progress) on SINK's independent climate assessment, scored from public data only. Scores are free. Companies can never pay for anything about their own score. Last verified October 2026.
That places Vaisala joint 37th of 900 companies scored, and 2nd of 39 in Electronics / Hardware.
What is Vaisala doing well, and where does it fall short?
Strongest on Carbon Footprint — Operations and Carbon Footprint — Supply Chain (8/10, 8/10). Weakest on Water Impact and Nature & Biodiversity Impact (3/10, 4/10).
Where Vaisala lost points
For each question that lost points, the evidence our public rubric looks for that we didn't find.
- Emissions from its own operations8/10No verified figures published with their method and a falling trend.
- Emissions from its supply chain8/10Its Scope 3 emissions aren't fully verified or falling year on year.
- Whether its emissions are falling6/10No consistent fall over several years across its operations and supply chain.
- How clean its energy is8/10Its own operations aren't shown to run on 100% renewable energy.
- Its effect on nature4/10Its effect on nature isn't measured or independently verified.
- How it uses materials and handles waste4/10No measurable waste or recycling targets reported publicly.
- Its effect on water3/10No monitoring of water use, or no measures to reduce it.
- Its climate targets7/10Its targets aren't validated by the Science Based Targets initiative.
- How openly it reports7/10No annual impact report, or no pay linked to climate targets.
A score changes when the evidence does. We use new published evidence at the next rescore. Anyone can send us new evidence, free. How to send it.
How is Vaisala's SINK score calculated?
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × ScaleWhat evidence is Vaisala's score based on?
11 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
45% of them were published by Vaisala itself; the rest come from independent sources.
“To calculate scope 1 emissions, we collect data from Vaisala-owned and leased cars, and from the consumption of heating fuels and refrigerants.”
“Scope 3 emissions make up over 99 % of Vaisala’s total emissions.”
“has achieved its target to use 100 percent renewable electricity by the end of 2020”
“This remaining part was covered by purchasing unbundled renewable energy attribute certificates from the market.”
“Financial Times focuses on the reduction of core emissions intensity over the 5-year period.”
“is now listed in the top five, increasing its ranking from place 14 the previous year”
“Vaisala ranks in the top 97th percentile of companies evaluated.”
“Vaisala has also kept its ISS STOXX Prime status after a recent reassessment.”
“52% per million EUR value added within the same timeframe”
“The Sustainability statement has been prepared in accordance with the European Sustainability Reporting Standards (ESRS)”
“Vaisala commits to reduce absolute scope 1 and 2 GHG emissions 52% by 2030 from a 2021 base year”
If you believe a source has been misread or a newer version exists, submit a challenge.
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How does Vaisala compare with other electronics / hardware companies?
Where Vaisala sits among electronics / hardware peers.
Among the 39 major electronics / hardware brands we've scored, Vaisala sits 2nd of 39.
Who scores higher in Electronics / Hardware?
The one company in the sector scoring above Vaisala.
See the full Electronics / Hardware table →Which companies moved this week, and why.
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