Vaisala Oyj (VAIAS.HE) Stock Analysis & Winston Score
Vaisala is a Finnish company that makes instruments and systems for measuring weather, the environment, and industrial conditions. Its products include weather stations, radiosondes (devices launched on weather balloons), humidity sensors, and lightning detection networks. Customers range from national weather services and airports to energy companies, life science labs, and data centers. Vaisala earns revenue by selling measurement hardware, software, and related services, often through long-term contracts with government agencies and large enterprises. Headquartered in Helsinki, the company operates globally and holds a dominant position in weather observation technology, supplying the majority of the world's upper-air sounding systems. Key growth drivers include rising demand for climate monitoring, renewable energy weather data, and industrial quality control, though the company faces risk from its reliance on government budgets and the cyclical nature of large infrastructure projects.
Winston Score: 67/100 — Good
A decent business — some strong pillars, some weaker.
- Quality: Strong (23/30)
- Growth: Mixed (8/20)
- Cash Flow: Exceptional (9/10)
- Stability: Strong (8/10)
- Valuation: Good (6/10)
- Ownership: Good (10/15)
Key Facts
Price: €57.00
Market Cap: €2.1B
Sector: Technology
Industry: Hardware, Equipment & Parts
Exchange: NASDAQ Helsinki

