The KWH Group consists of three independent divisions organized as subgroups according to their fields of operation.


Mirka manufactures and markets net, paper, cloth, foam, and non-woven-based abrasives, sanding and polishing machines and polishing compounds for different types of surface finishing processes in automotive refinishing and vehicle manufacturing, the manufacture of composite parts, wood and furniture industry, metal processing, and for sales via the hardware, paint and machinery trades.

Production units are situated in Jepua, Oravainen, Pietarsaari, and Karjaa, Finland. Mirka has 18 marketing companies and 4 sales offices abroad. Approximately 97% of production is exported. 

Turnover 2017: EUR 271 million

Personnel 2017: 1,223

Logistics Services

KWH Logistics consists of four business units:

KWH Freeze, operating in the field of Cold Storage, is Finland’s leading commercial cold storage company with facilities in Vantaa and Inkoo.

Port LogisticsFreight Forwarding and Industrial Services (Backman-Trummer Group) operate in the whole of Finland in the fields of port operations, freight forwarding, international transports, industrial services, and complete logistics solutions. 

Turnover 2017: EUR 161 million

Personnel 2017: 440

Siphon Systems and Strategic Holdings

Prevex produces siphon systems for kitchens and bathrooms as well as customer specified products. Prevex is the market leader in Scandinavia for kitchen sinks with a factory located in Uusikaarlepyy, Finland. It also has a subsidiary, Winkiel, in Poland. Approximately 90% of production is exported. 

Turnover 2017: EUR 34 million

Personnel 2017: 252

Strategic Holdings 

KWH owns 44.7% of shares of Uponor Infra Ltd (previously KWH Pipe) which manufactures a variety of plastic pipe systems.