3TIER, a Vaisala Company
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An Open Letter to the Renewable Energy Industry from 3TIER

December 17, 2013

Dear Clients, Associates, Colleagues, and Friends:

On behalf of everyone at 3TIER, we have some very exciting news to share with you. Vaisala, a global leader in environmental and industrial measurement, has acquired 3TIER. Going forward the two companies’ combined expertise will bring an integrated suite of renewable energy assessment, forecasting, asset optimization, and measurement solutions to customers around the globe.

3TIER will operate as a wholly owned subsidiary of Vaisala, so you will still interact with 3TIER as you have in the past. And you can expect the same industry-leading forecasting and assessment services 3TIER is known for, now and in the future, only made stronger by the resources and depth of experience from Vaisala.

To learn more about the acquisition, please read Vaisala's Press Release. We encourage you to reach out to your 3TIER representative, if you have any questions about this announcement.

Finally, a sincere thank you for your support of and interest in 3TIER over all these years.

Regards,

Craig Husa
3TIER CEO
Pascal Storck
3TIER COO
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ABOUT VAISALA

Vaisala is a global leader in environmental and industrial measurement. Building on 75 years of experience, Vaisala contributes to a better quality of life by providing a comprehensive range of innovative observation and measurement products and services for chosen weather-related and industrial markets. Headquartered in Finland, Vaisala employs approximately 1,400 professionals worldwide and is listed on the NASDAQ OMX Helsinki stock exchange.