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Joen Service was founded by Pertti Lahti in 1982.

Pertti had begun his career in aviation as a Mechanic in the 1970’s. Back then, there was a shortage of mechanics. Pertti very quickly found himself in high demand and ended up moving from Helsinki Malmi Airport to Joensuu to run an aircraft maintenance company.


North Karelia provided firm roots for Joen Service. Customers at the start included Finnaviation, private aircraft owners and local aviation clubs.

To secure the company’s future during the recession in Finland in the 1990’s, Pertti expanded services to include helicopters. His keen interest in aviation and extensive experience in aircraft maintenance was also passed onto his son, Mikko Lahti, whose first summer job as a teenager was Assistant Mechanic at Joen Service. That experience eventually lead Mikko to become an Aircraft Mechanic for Finnair.

Joen Service became Finnair’s local partner at Joensuu Airport in 1997. The company provided the Finnish national airline technical services until 2005 and ground handling services from 2022.


Joen Service was founded by Pertti Lahti in 1982.

Mikko joined Joen Service in 2001 and became the company’s CEO in 2011. He has lead the family company to become a trusted provider of a wide range of aviation services. Today, Mikko leads a team of experts specializing in aircraft maintenance and repairs, airworthiness management, ground handling and fuelling. Joen Service is still Finnair’s local “arm” at Joensuu Airport and also a trusted partner for other airlines operating in Finland and globally.

In the future, Joen Service wants to be a pioneer in aviation safety and sustainability. With its extensive experience in aviation services and with valued contacts built over almost five decades, the company is focusing on further expanding its services.

To do its part in looking after the environment, the company is also taking an active role in innovation around sustainability.

Joen Service has employed a diverse team of people for almost fifty years and gained a reputation as a good place to work.

“We employ people of a wide skill and age range. They often tell us this is the best place they have ever worked at. We do our very best every day to keep it that way.”

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“With the help of innovation and creativity, we make effective use of the company’s resources so that we can focus on constantly developing what we do.”
- Mikko Lahti, CEO


Since 2022, Joen Service Oy has been committed to the UN Global Compact corporate responsibility initiative and its principles in the areas of human rights, labor, environment and anti-corruption.

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The purpose of the project is to develop business and investments enabling the provision of Ground Handling services to meet the increased demand for post-pandemic travel growth at Joensuu Airport 10/2022 - 12/2023.

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