Jari Ensio Lotvonen

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.