Decades of innovation Vaisala's origins date back to the 1930s when Professor Vilho Väisälä, Vaisala's founder and long-time managing director, invented some of the operating principles of a radiosonde. The company was established in 1936 in Finland, and the first radiosondes were manufactured in the basement of a residential building in the center of Helsinki. From a modest start, the company evolved to become a world leader in many measurement fields. Today Vaisala employs over 1,850 people and exports 98% of its production to over 150 countries. Curiosity, the desire to meet challenges and an extraordinary ability to innovate are at Vaisala's core, both past and present. Vaisala is established by Vilho Väisälä on the success of RS11 the first Vaisala radiosonde. The company starts radiosonde manufacturing in the basement of a residential building in the center of Helsinki. The first delivery of 20 radiosondes is sent to MIT, USA. First radiosonde RS11 wins a gold medal at the World Fair in Paris. New premises in Pasila, Helsinki provide the office for the company. The company is named Mittari Oy, with 28 employees. Radiotheodolite for upper-air wind measurement is introduced. The Vaisala Sounding System becomes completely electronic. The company moves to new premises in Vantaa, Finland and changes its name to Vaisala Oy, leaving out the double dots from the Väisälä family name. The first issues of Vaisala News customer magazine are published. Today the magazine provides stories and articles in both online and print formats. Read Vaisala News Vilho, Yrjö and Kalle Väisälä Foundation is established when Vilho Väisälä donates 3,000 Vaisala shares to the Finnish Academy of Science and Letters. The fund provides annual grants to research in mathematics, physics, meteorology, and astronomy. Thin-film technology for HUMICAP® humidity sensors is developed. The world-first groundbreaking technology revolutionizes the humidity measurement market. The new sensor is used to measure humidity both outdoors and indoors. The first Automatic Weather Stations are developed for collecting surface observations. This is the start of Vaisala's aviation weather business. Vaisala's first cleanroom is built enabling the design and manufacturing of semiconductors in-house. This marks the beginning of Vaisala's industrial business. RS80 radiosonde family brings a new standard in synoptic upper-air weather observation into the market. Vaisala introduces Vaisala BAROCAP® that is silicon barometric pressure sensor technology. Professor Vilho Väisälä Award is established by Vaisala and the World Meteorological Organization (WMO) for the best instrumentation paper in meteorology and related fields. Vaisala becomes a public company. The company’s A shares are listed on the Helsinki Stock Exchange. CARBOCAP® and DRYCAP® expand industrials measurements into carbon dioxide and dewpoint measurements. The CARBOCAP® carbon dioxide sensor is based on silicon technology and the DRYCAP® dewpoint sensor on thin-film polymer technology. RS92 radiosonde family is launched. The new high-performing sensors and GPS application for wind measurement are uniquely designed for radiosonde use. New cleanroom provides industry-leading quality and reliability enabling Vaisala to manufacture humidity, barometric pressure, carbon dioxide, and dewpoint sensors in-house. New remote sensing road surface state instrument utilizes infrared optics and laser technology. Innovative C-band weather radar provides accurate dual polar metric measuring and new concept in antenna design. GLD360, a global lightning information service provides accurate real-time lightning information. Vaisala acquires Veriteq a leading company in continuous monitoring systems to strengthen Vaisala’s position in the steadily growing global life science markets. Vaisala's new head office opens and receives the LEED Gold certificate. Most of the heating energy is generated by the building’s own geothermal energy system. Vaisala acquires Second Wind and 3TIER expanding into the renewable energy market with a wider range of products and services. Vaisala launches the new Road Weather Station RWS200. Combined with industry-leading decision support software, it provides intelligent weather information for road authorities. Vaisala RS41 radiosonde launches the 4th generation sounding system. Vaisala Commits to Renewable Energy aiming for 100% by 2020. New moisture, hydrogen and temperature MHT410 transmitter opens new opportunities in the power generation and transmission market. Vaisala expands its offering to the growing air quality monitoring market acquiring new products and technology. Vaisala OptimusTM DGA Monitor for Transformers is a new online measurement device for transformer dissolved gas analysis, building on unique technology to solve problems in transformer maintenance. Vaisala acquires Finnish IT company Vionice specialized in computer vision and artificial intelligence, bringing Vionice's product portfolio globally to its road and rail customers.