Leinonen Group companies obey the law and all concluded contracts, and co-operate with individuals and organisations that follow the same principle.


The core value of the organisation lies in professional and reliable staff who gives their best to provide high-quality service to meet different customer needs and to ensure the group’s success. Leinonen Group companies fulfil their promises to customers, employees and partners, and keep confidential any information concerning customers, partners and their companies.


Leinonen Group companies base their activities on customer needs. The Group pays special attention to the level of the services provided to customers and customer requirements.


Leinonen Group companies are always ready to develop further, and aim to enhance both customer services and in-house expertise. The applied technology is modern. At the same time, the company does not aim to work as a pioneer, and does not take unnecessary risks. Staff skills are continually improved. Independent training and enrichment is highly encouraged.


Leinonen Group companies ensure a safe working environment for staff and customers, and promote an open information exchange with colleagues and customers.


Leinonen Finland - 

High Quality Accounting

Serving an increasing number of international customers with cross border issues

In Finland we offer wide range of financial administration services, including accounting, payroll, advisory and other supportive services. We are authorized accounting firm, which is a guarantee of professional financial administration. Read more about our services.

Leinonen is closely involved in developing Finnish-Estonian and Finnish-Russian trade. Currently the competition for foreign investments in the Baltic Sea Region is tight and the Governments are trying to attract international companies in order to create jobs and guarantee tax revenues. We have noticed that an increasing number of Russian and Estonian companies are now interested in Finnish markets and wish therefore to cooperate with Leinonen. Ask for a quotation. 

If you wish us to write about a specific subject or you have questions concerning accounting, payroll or other financial administration issues, please send your questions to us to by email to contact(at) We aim to answer all questions and inquiries as soon as possible. 

For more details, Contact us.

Member of Association of Finnish Accounting Firms. Read more what it means to be authorized accounting firm.