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Portfolio

Sontek is involved in several ventures with small and mid-sized companies, supporting their development and growth. We invest in them, act as their business sparrers and aren’t afraid of hard work ourselves. Some of our family members have already reached the finish line, with others we’re still enjoying the ride. Read more below.

KattoHoiva Oy specializes in roof consultancy services, maintenance and repairs. The object of the...

UniqAir is an air purifier tested and proven effective by the Finnish authorities VTT and FIOH. It...

Finnwind Oy is a tech and consultancy company specialized in solar energy systems. They...