Wind energy represents an extensive market with long-term growth opportunities.

HELSINKI (December 17, 2013) Vaisala strengthens its position in the renewable energy market through the acquisition of 3TIER Inc., a US based company with USD 9.0 million net sales in 2012 and 55 employees. The value of the deal is EUR 10.7 million. Vaisala is using its existing cash balance to finance the transaction. This acquisition will not have a material impact on Vaisala's 2013 financial result or balance sheet. Market guidance for 2014 will include also 3TIER's impact on Vaisala's financial result and it will be disclosed on February 10, 2014 in Vaisala's financial report for January-December 2013.

3TIER provides project feasibility, asset management and forecasting services to companies operating in the renewable energy market globally. While the majority of 3TIER's business comes from wind energy market the company also serves customers in solar and hydro-energy markets. 3TIER complements Vaisala's strong environmental sensing business and its international distribution network will provide significant growth opportunities in Brazil, Nordic countries, China, Australia, India, and the USA.

"The renewable energy market is a focus area of Vaisala's Weather business, and the acquisition of 3TIER with its wind energy emphasis, aligns perfectly with Vaisala's strategy. Wind energy represents an extensive market with long-term growth opportunities. 3TIER brings Vaisala valuable capabilities in renewable energy assessment and forecasting services applicable across our other segments as well," tells Kai Konola, Executive Vice President of Vaisala Weather Business.

Vaisala's strategic intent has been to build a stronger position in the renewable energy sector. The acquisitions of Second Wind in August and 3TIER today are logical steps, and together with Vaisala's offering create a full service renewable energy measurement and information services business.

For Further Information Please Contact:
Kai Konola, Executive Vice President of Vaisala Weather Business
Tel. +358 40 5024 900, kai.konola[at]vaisala.com

Distribution:
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Key media www.vaisala.com

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. For more information, visit www.vaisala.com and www.twitter.com/VaisalaGroup.