Vaisala acquires AI weather firm Atmo for USD 70 million
Vaisala Corporation is acquiring Atmo, Inc. for USD 70 million to enhance its AI weather forecasting capabilities. The deal includes a potential earn-out of USD 60 million and is expected to close by late 2026. Atmo's 2025 net sales were USD 2 million, with contracted revenue of over USD 6 million for 2026.
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Vaisala Corporation has signed an agreement to acquire Atmo, Inc., a San Francisco-based technology company specializing in AI weather forecasting, for a fixed purchase price of USD 70 million. The acquisition aims to combine Vaisala's weather observation technology with Atmo's AI models to create the world's leading weather technology company. The transaction is expected to close by the end of 2026, subject to regulatory approvals, and will not alter Vaisala's business outlook for 2026.
Transaction Details
The fixed purchase price of USD 70 million will be paid primarily through a combination of cash and newly issued Vaisala shares. The cash portion will be funded from existing reserves and interest-bearing debt, while the share component is valued at EUR 9 million. Additionally, there is a contingent cash earn-out opportunity of up to USD 60 million, payable based on Atmo's business performance and employee retention between 2026 and 2028.
Strategic Rationale
The acquisition accelerates Vaisala Xweather's technology roadmap and growth strategy. AI-driven forecasting models offer faster and more accurate predictions compared to traditional numerical weather prediction models, requiring significantly less computing power. Atmo's technology has been recognized by TIME magazine as one of the world's best inventions in 2024. The combined entity will serve meteorological agencies, defense organizations, and weather-dependent industries with a full range of solutions from sensors to actionable insights.
Financial Overview of Atmo
Atmo reported net sales of USD 2 million in 2025 and has contracted revenue exceeding USD 6 million for 2026. The company is currently in its investment phase and is not yet EBIT profitable. Upon closing, 20 professionals based in the United States, including Atmo's founders, will join Vaisala.
Atmo, Inc. (Unaudited) Key Figures
| Metric | USD million (2025) |
|---|---|
| Net sales | 2 |
| Total current assets | 3.7 |
| Total current liabilities | 1.8 |
Management Commentary
Samuli Hänninen, Executive Vice President of Vaisala Xweather, emphasized the transformative potential of AI in weather forecasting. Alexander Levy, Co-founder and CEO of Atmo, highlighted the complementary strengths of Vaisala's sensing network and Atmo's AI models. The acquisition aligns with Vaisala's strategic priority to grow its share of services and software revenue.
How will Vaisala integrate Atmo's AI models with its existing sensor network to differentiate its offerings from competitors?
What specific metrics will trigger the USD 60 million contingent earn-out between 2026 and 2028?
Will the acquisition lead to expanded R&D investments in AI-driven forecasting beyond Atmo's current capabilities?
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