Key Financial Indicators 2018

Net sales


Operating result


Return on equity (ROE)


Earnings per share


Kjell Forsén

CEO's Message

At Vaisala we engage in activities that are designed to help ensure the long-term viability of the planet, particularly from the perspective of the environment. It is our responsibility to apply the very latest technologies, in order to be able to deliver the most accurate and reliable products and services.

Vaisala Chariman of the Board, Raimo Voipio

Chairman's Message

At Vaisala, we continue to keep science and innovation at the heart of our business. We continue to look at the future with a curious nature, and focus relentlessly on delivering the most reliable and highest quality solutions to customers. We take our responsibility to society and communities very seriously.


of electricity used is renewable


waste recovery rate of manufacturing sites


carbon footprint reduction from energy consumption since 2014


of personnel working on ISO 14001 certified sites

Annual Report Stories 2017

What did Vaisala do last year?

Read stories about how Vaisala is helping to build the New Children’s Hospital being built in Helsinki, offered helping hand to the hurricane-affected St. Maarten and how Vaisala is building a dense air quality observation network in the megacity of Nanjing and the Yangtze River Delta in 2017–2019.

Read more what we have accomplished in 2017.

Vaisala Value Creation Model

Across Vaisala, we build our customer value on reliability as well as excellence in science-based technology leadership and application expertise and engaged, talented people and robust partnerships.

We bring value to societies through accurate and reliable environmental measurements as well as decision support for national and local authorities, businesses, and the renewable energy sector.

Vaisala works together with nearly all meteorological institutes in the world, supporting them in providing accurate, real-time information and forecasts on weather all around the globe. We and our partners also collaborate with international funding agencies and weather experts to build capacity for weather observation networks and competence in developing economies.

Vaisala Dashboard



Vaisala Business Model

Watch the video

Vaisala Story

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.