Vaisala’s core business is environmental measurement, especially weather measurement, and chosen industrial measurements. Business is conducted by three business areas: Meteorology, Weather Critical Operations and Controlled Environment.
The business areas are supported by group wide functions of Products and Technology, Services and Operations.

Business Areas
Meteorology serves professional meteorological customers by providing a comprehensive offering for their measurement, data management and early warning needs. Weather Critical Operations focuses on customers in roads, airports, defense and wind energy segments. It provides products and solutions to support customers in their operational decision making under any weather conditions. Controlled Environment serves industrial customers in building automation, cleanrooms and chambers and targeted industrial applications segments. It offers a broad range of measurement instruments to ensure customers operational quality and productivity. 
The business areas have dedicated sales teams to serve the respective market segments.

Group wide functions
Products and Technology is responsible for Vaisala's product creation and product management. Vaisala's product services and observation services are centralized into the group wide Services unit. Operations comprises of purchasing, production and deliveries.

Vaisala organizational structure