History
1994
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Finnkatalyt Oy is founded in Oulu, Finland, as a company concentrating on exhaust purification systems for machines and vehicles.
1996
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ENWA GmbH is founded in Zürich, Switzerland, developing SCR exhaust purification systems for stationary engines and applications.
1997
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Finnkatalyt's exhaust cleaning systems are rewarded at the International Exhibition of Inventions in Genf, Switzerland.
1999
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Head Invest Oy, a company developing business operations that promote the well-being of people and the environment, becomes one of the main owners of Finnkatalyt Oy.
2001
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Head Invest Oy founds the company Proventia to concentrate in the environmental and well-being sector.
2005
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Finnkatalyt becomes Proventia's daughter company.
2007
- Proventia acquires the entire capital stock of the Swiss exhaust purification specialists ENWA GmbH.
- Finnkatalyt Oy and ENWA GmbH are merged to form Proventia Emission Control.
- The new premises of Proventia are completed in Oulunsalo. Proventia's new technology center also houses a state-of-the-art engine and emissions laboratory.
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Proventia's Diesel Particulate Filter for Transport Refrigeration Units (TRU) receives CARB (California Air Resources Board) verification.
2008
- Proventia Emission Control receives the Internationalization Award of the President of the Republic of Finland.
- Proventia makes a strategic decision to sell its holdings in other businesses and concentrate solely on emission control business.
2009
- Proventia expands with offices in the US. Proventia Americas LLC is founded in Minneapolis, Minnesota.



