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Sales, price inquiries

Please use our sales contact locator.

Technical support

Please find more information at Technical support section.

Job applications

Please see our Careers pages for open positions and career opportunities.

Investor relations

Investor relations contacts can be found on the IR contacts page.

Media contacts

Members of the press and media looking for public relations contacts, see the media contacts page.

Other inquiries

Vaisala Oyj
P.O. Box 26, FI-00421 Helsinki, Finland
Visiting address: Vanha Nurmijär​​​ventie 21, 01670 Vantaa
Phone: +358 (0)9 89491

Have you found a weather balloon?

Sometimes weather balloons with small white boxes hanging on them can be found on the ground. They are actually radiosondes, which are meteorological devices used to measure temperature, humidity, pressure, wind speed and direction in the upper atmosphere. These instruments are launched by our various customers, such as the national weather institutes, environmental and research organizations.  More information and instructions for disposing the radiosonde.