Raisa Lesonen

Head Invest Oy engages in investing in technology businesses. Its business areas focus on technology solutions that promote well-being and a clean environment. The company was founded in 2000 and is headquartered in Oulu, Finland.

Proventia Group Oy provides technologies and services for engines. It develops engineers and supplies customized exhaust after treatment solutions for diesel engines in retrofit installations. The firm produces insulation solutions for thermal management for engine and machine applications. In addition, it offers a selection of testing services and transportable Proventia Test Units for engines, emissions, fuels, and lubricants. The company was founded in 2001 and is headquartered in Oulunsalo, Finland.