Vaisala is a Finnish company that develops, manufactures and markets products and services for environmental and industrial measurement. The major customer groups and markets are national meteorological and hydrological services, aviation authorities, defense forces, road authorities, the weather critical energy sector, life science and high-technology industries and building automation. The company has operations in 28 countries and employs over 1,900 people worldwide. Vaisala's head office is located in Vantaa, Finland.