Close Menu
Meteorological Technology International
  • News
    • A-E
      • Agriculture
      • Automated Weather Stations
      • Aviation
      • Climate Measurement
      • Data
      • Developing Countries
      • Digital Applications
      • Early Warning Systems
      • Extreme Weather
    • G-P
      • Hydrology
      • Lidar
      • Lightning Detection
      • New Appointments
      • Nowcasting
      • Numerical Weather Prediction
      • Polar Weather
    • R-S
      • Radar
      • Rainfall
      • Remote Sensing
      • Renewable Energy
      • Satellites
      • Solar
      • Space Weather
      • Supercomputers
    • T-Z
      • Training
      • Transport
      • Weather Instruments
      • Wind
      • World Meteorological Organization
      • Meteorological Technology World Expo
  • Features
  • Online Magazines
    • January 2026
    • April 2025
    • January 2025
    • September 2024
    • April 2024
    • Archive Issues
    • Subscribe Free!
  • Opinion
  • Videos
  • Supplier Spotlight
  • Expo
LinkedIn X (Twitter) Facebook
  • Sign-up for Free Weekly E-Newsletter
  • Meet the Editors
  • Contact Us
  • Media Pack
LinkedIn Facebook
Subscribe
Meteorological Technology International
  • News
      • Agriculture
      • Automated Weather Stations
      • Aviation
      • Climate Measurement
      • Data
      • Developing Countries
      • Digital Applications
      • Early Warning Systems
      • Extreme Weather
      • Hydrology
      • Lidar
      • Lightning Detection
      • New Appointments
      • Nowcasting
      • Numerical Weather Prediction
      • Polar Weather
      • Radar
      • Rainfall
      • Remote Sensing
      • Renewable Energy
      • Satellites
      • Solar
      • Space Weather
      • Supercomputers
      • Training
      • Transport
      • Weather Instruments
      • Wind
      • World Meteorological Organization
      • Meteorological Technology World Expo
  • Features
  • Online Magazines
    1. April 2026
    2. January 2026
    3. September 2025
    4. April 2025
    5. January 2025
    6. September 2024
    7. April 2024
    8. January 2024
    9. Archive Issues
    10. Subscribe Free!
    Featured
    May 5, 2026

    In this Issue – April 2026

    By Web TeamMay 5, 2026
    Recent

    In this Issue – April 2026

    May 5, 2026

    In this Issue – January 2026

    November 27, 2025

    In this Issue – September 2025

    August 11, 2025
  • Opinion
  • Videos
  • Supplier Spotlight
  • Expo
Facebook LinkedIn
Subscribe
Meteorological Technology International
Data

Vaisala acquires US weather data provider AerisWeather

Dan SymondsBy Dan SymondsJanuary 27, 20222 Mins Read
Share LinkedIn Facebook Twitter Email
Share
LinkedIn Facebook Twitter Email

Environmental and weather measurement specialist Vaisala has acquired US-based Whether or Knot (AerisWeather), a subscription-based software company providing weather and environmental information.

The US$26m acquisition supports Vaisala’s strategy to drive growth in Data as a service and Software as a Service for its weather and environment business area.

Jarkko Sairanen, executive vice president, weather and environment, Vaisala, said, “The overall usage of accurate weather and environmental data continues to increase significantly, as extreme weather phenomena become more frequent and in practice all business sectors optimize further their operations based on weather and environmental insights. Vaisala is already the global leader in providing lightning data, that is essential to ensure safety in multiple different sectors. In addition, we are a leading provider of weather and road weather data for automotive industry and road authorities as well as a significant player in providing historical data and forecasts for renewable energy sector. Through AerisWeather we are expanding our offering and opening access to several new customer segments with our leading data offering.”

Samuli Hänninen, vice president, weather and environment, Vaisala, said, “We are very excited to have AerisWeather as part of Vaisala to accelerate our platform-based data business. By combining Vaisala’s existing measurement and forecasting technologies with AerisWeather’s industry-leading data services and developer tools, we will offer the best insights and forecasts for all important weather and environmental data parameters in an easy-to-use, developer-centric way.”

AerisWeather’s net sales in 2021 amounted to US$3.2m. Following this acquisition, 17 professionals, located in the USA, will transfer to Vaisala.

Previous ArticleUK professors discover earliest known account of ‘ball lightning’
Next Article WMO, DPGA and ITU call to make meteorological data sets freely available as public goods

Read Similar Stories

Automated Weather Stations

University of Vermont launches first station in statewide weather monitoring network

May 8, 20262 Mins Read
Digital Applications

AI models lag behind traditional systems in predicting extreme weather

May 5, 20262 Mins Read
Extreme Weather

Researchers investigate links between air pollution, extreme weather and climate

May 1, 20262 Mins Read
Latest News

University of Vermont launches first station in statewide weather monitoring network

May 8, 2026

G7 countries pledge additional funding for CREWS early warning initiative

May 7, 2026

Wildfires can create ‘burn scar heat islands’ that alter weather patterns, study finds

May 6, 2026

Receive breaking stories and features in your inbox each week, for free


Enter your email address:


Supplier Spotlights
  • ZOGLAB Microsystem Co., Ltd
Getting in Touch
  • Contact Us / Advertise
  • Meet the Editors
  • Media Pack
  • Free Weekly E-Newsletter
Our Social Channels
  • Facebook
  • LinkedIn
© 2026 UKi Media & Events a division of UKIP Media & Events Ltd
  • Cookie Policy
  • Privacy Policy
  • Terms and Conditions
  • Notice and Takedown Policy

Type above and press Enter to search. Press Esc to cancel.