Leinonen: Reliable Business Accounting Company

Leinonen has been providing reliable accounting services for local and foreign-owned businesses in Northern and Eastern Europe for more than three decades. We understand the details of conducting international, cross-border commerce in the countries we operate.

Our Mission

We offer high-quality accounting and financial management services, enabling clients to focus on their core business.

Accounting, Payroll, Tax & Legal since 1989


employees worldwide


years in business


satisfied customers


countries we operate in

About Leinonen

Leinonen is a company with strong Finnish roots. We are proud to be a reliable partner in accounting industry for over 3 decades now. Our Nordic heritage and long-term vision is reflected in the way we operate: trustworthy, ethical, yet easy to work with. 

By keeping true to our values Leinonen has proved to be a stable company, growing year by year. The cornerstone for our success is our people. Having experienced, multilingual accountants and consultants ensures we can offer the best service to our clients.

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The Many Benefits of Working with Leinonen


We are a well-established company with “Infinity game” as part of our vision, meaning we build our organization not with an aim of fast profit, but continues business.


We take immense pride in the exceptional quality of services we consistently provide to our clients.

Cross-border expertise

Being present in 11 countries, we can support our clients cross-border. We understand the needs of multinational/ international clients and can support them with their global accounting or payroll requirements.

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Our Services

We support our client’s growth by taking care of their accounting and legal needs.

We are dedicated to supporting clients’ growth. We do that by offering full cycle Quality accounting and payroll services. Cover all the basics, put professionals on the case, tailor the service for our clients, make sure to constantly improve, be easy to work with – that is what we mean by Quality.

Get in Touch

To learn more about our services, simply fill out the contact form on our website. We will try to get back to you shortly to provide more information.



Contact us by email, via the contact form on the website, or give us a call. We will try to get back to you as soon as possible.


Lets Talk

We will schedule a virtual meeting with one of our team members, during which we will get to know you and your needs.



Once we have all the necessary information, we will present you with a no-obligation offer for your request.

Recent Posts

3 days ago -

Shaping Success in the East: Leinonen Ambitious Journey

In the dynamic Eastern Region, Tuomas Pukkala, the Country Manager for Ukraine and Kazakhstan, is a key player steering Leinonen’s efforts in the area. He…

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November 14, 2023 -

Turning Vision into Achievement: A CEO’s Reflection on Shaping Leinonen Group Success

In the heart of Leinonen Group success lies Seppo Hämäläinen, a visionary leader who has guided the company through years of growth and evolution. With…

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April 25, 2023

Modern accounting trends

Like every other industry, also accounting is evolving rapidly every year and requires modern accountants to stay up to date with data automatization, analytics, excellent…

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