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

Mirka – Abrasives

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 20 marketing companies and 4 sales offices abroad. Approximately 97% of production is exported.

Turnover 2023: EUR 409 million
Personnel 2023: 1,657

KWH Logistics – Logistics Services

KWH Logistics consists of three business units.

International Transports
Global logistics solutions by different modes of transportation and related value adding services in Kokkola, Turku and Vaasa, Finland.
Oy Backman-Trummer Ab
Oy Moonway Ab

Port Logistics
Port operations and related logistics solutions for both bulk and unitized goods as well as for project cargo. Operates in Hamina, Hanko, Helsinki, Kalajoki, Kemi, Kokkola, Kotka, Koverhar, Kristiinankaupunki, Naantali, Oulu, Pori, Raahe, Tornio, Turku, Uusikaupunki, Vaasa and Äänekoski, Finland.
Oy Blomberg Stevedoring Ab
Oy M. Rauanheimo Ab
Stevena Oy
Oy Galea Shipping Ab

Industrial Services
Handling, storage, and transport of goods, construction excavation, workshop for heavy machinery, in-plant service logistics and other related operations together with rental of small machinery and scaffolding. Operates in Hämeenlinna, Jyväskylä, Kokkola, Kotka, Pietarsaari, Pori, Vaasa, Varkaus and Äänekoski, Finland.
Oy Adolf Lahti Yxpila Ab
Oy Blomberg Rent Ab

Turnover 2023: EUR 146 million
Personnel 2023: 584

KWH Freeze – Cold Storage

KWH Freeze Ltd is by far Finland’s largest actor in frozen food storage. The storage facility is in Vantaa. KWH Freeze serves customers of all sizes – both the small with one pallet to store and the large with 10 000 pallets. Their customers are wholesale dealers, actors in the food industry and frozen food importers. KWH Freeze both stores and handles frozen foods for their customers, and rents space to customers who handle their goods themselves.

Turnover 2023: EUR 28 million
Personnel 2023: 120

KWH Invest – Water Traps and Strategic Holdings


Prevex is one of Europe’s leading manufactures of water traps. It specialises in functional and space saving water traps for kitchen and bathrooms. It has factories in Nykarleby and Jakobstad, in Finland. Approximately 90% of production is exported.

Turnover 2023: EUR 31 million
Personnel 2023: 192