Innovative technologies for zero emissions future

Proventia is a technology company operating in global markets. We offer solutions and services for the engine, machine, and vehicle industries to combat the climate change and help solve the global air pollution problem.

We provide unique modular test centers for the vehicle industry for developing and testing of electric and hybrid vehicles, their powertrains and battery packs.  We develop and manufacture systems and components that improve the energy efficiency and sustainability of powertrains in heavy machines and vehicles. These solutions include state-of-the-art exhaust aftertreatment systems, thermal insulation components and electric powertrain components and batteries.

We care about people, the environment, and future generations, and aim for zero emissions.


Developed by professionals

Proventia's technologies are based on high-quality Finnish engineering. Our head office, research and development, assembly of test modules and centers in Oulu, Finland. We have efficient manufacturing sites in Finland and the Czech Republic. Our UK office serves our Test Solutions customers in the UK. Our first-rate audited subcontracting chain complements our own production. Our sales and support functions are available anywhere our customers need us. Proventia's technologies stand for cleaner air on every continent – for all of us.


Proventia Group Oy started its operations in 2000 as a development company, including subsidiaries specialized in environmental, energy and other technologies. One of these subsidiaries was Finnkatalyt Oy, established in 1994. It produced solutions such as exhaust aftertreatment systems for small petrol engines. In 2007, Finnkatalyt became Proventia Emission Control Oy, and the company shifted its focus to large diesel engines.

In 2012, Proventia focused on the emission control business. At the same time, the management of Proventia Group and Proventia Emission Control were merged in a single organisation. In 2015, Proventia expanded its business operations from exhaust aftertreatment systems to modular test solutions and thermal components, and Proventia Emission Control became Proventia Oy in 2017.

In 2018 Proventia established a subsidiary: Proventia Czech s.r.o, in the Czech Republic. Located in the Brno region, the production facility manufactures exhaust aftertreatment components for the OEM market. In 2020 Proventia established a subsidiary in the UK: Proventia UK Ltd. This office serves our customers of Test Solutions business area in the UK.

Today, Proventia employs around 190 professionals and specialists in Finland, the Czech Republic, and the UK.