Sofi Filtration announced signing off a €3M funding round.

Sofi Filtration, an Espoo, Finland-based producer of water filtration technology, announced signing off a €3M ($3.5M) investment round.

The deal is part equity raise from the Swiss firm Emerald Technology Ventures and the Finnish from Voima Ventures, part secondary as existing shareholder Loudspring announced it bought shares from early investors. The proceeds will be used to accelerate the growth of the company. 

Helge Daebel, a partner at Emerald, will join the company's board of directors.

Sofi Filtration Oy, founded in 2011 and led by CEO Ville Hakala, provides efficient water filtration technology, and developed a proprietary product called Sofi Filter, a self-cleaning filter that enables cost efficient micro filtration of large amounts of water.

The company focuses on marine, oil&gas, mining and power generation industries, with end-customers mainly in North America and Northern Europe.