- CEO
- Kai Olavi Oistamo Tec.
- Full Time Employees
- 2,464
- Sector
- Technology
- Industry
- Hardware, Equipment & Parts
- Address
- Vanha NurmijAerventie 21 Vantaa Finland 01670
- IPO Date
- Dec 31, 2012
- Business
- Vaisala Oyj develops, manufactures and markets measurement instruments, systems and services for weather observation, environmental monitoring and industrial applications. The company offers a broad portfolio of products including industrial humidity, temperature, carbon dioxide, dew point, vaporized hydrogen peroxide and methane sensors and transmitters; data loggers and monitoring software for critical parameters such as differential pressure; dissolved gas analyzers for power transformers; moisture in oil instruments; biogas optimization tools; ceilometers, lidars and visibility sensors; present weather detectors; road weather stations; wind lidars and radars; radiosondes; and infrared CARBOCAP sensors for CO2 measurement, serving sectors like aviation, renewable energy, life sciences, pharmaceuticals, food and beverage, data centers, semiconductors, cleanrooms, HVAC, power transmission, agriculture and carbon capture. Vaisala operates two main business areas—Weather and Environment for meteorological institutes, aviation, defense and energy sectors; and Industrial Measurements for quality control, productivity and energy efficiency in high-technology industries—with global reach across more than 150 countries through offices in Finland, the United States, the United Kingdom, China, Japan, France, Germany, Australia, Brazil, Canada, India and others; the company sells via direct sales, distributors and online stores and provides maintenance, calibration, repair and extended warranty services. Founded in 1936 and headquartered in Vantaa, Finland, Vaisala employs around 2,500 people and lists its series A shares on Nasdaq Helsinki. In recent developments, Vaisala acquired Quanterra Systems Ltd in September 2025 to launch its New Climate Business, focusing on atmospheric CO2 flux monitoring for carbon verification and credits in agriculture and biofuels; the company completed multiple acquisitions in 2024, including AerisWeather and three others to bolster digital SaaS offerings in weather and environment; it initiated change negotiations in August 2025 in Finland for cost controls amid weak renewable energy demand and order intake declines in meteorology and aviation, targeting completion by Q3 2025; and sharpened focus on wind energy and maritime within renewables while pursuing programmatic M&A for growth.