LEINONEN GLOBAL

International Business Accounting Outsourcing Company

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

Leinonen Global - International Business Accounting Outsourcing Company

Our Mission

Our mission is to deliver high-quality accounting and financial management services that allow our clients to focus on what matters most – growing their business.

Since 1989, Leinonen has provided trusted Accounting, Payroll, Tax, and Legal support to companies operating across borders.

270+

employees worldwide

37

years in business

1500+

satisfied customers

11

countries we operate in

About Leinonen

Leinonen experts: experienced, multilingual accountants, tax and legal consultants
Leinonen experts: experienced, multilingual accountants, tax and legal consultants
Leinonen experts: experienced, multilingual accountants, tax and legal consultants

Leinonen is a company with strong Finnish roots and over three decades of experience in the accounting industry. Our Nordic heritage shapes how we operate – trustworthy, ethical, yet easy to work with.

Staying true to these values has made Leinonen a stable, steadily growing partner for international businesses. Our success is built on people: experienced, multilingual accountants, tax & legal consultants who deliver high-quality, personalized service across borders.

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Benefits of working with Leinonen: stability, quality, cross-border expertise

Benefits

Get advice from a cross-border expert who speaks your language & understands your business.

Stability

We believe in sustainable growth. Rather than chasing fast profit, Leinonen focuses on long-term success and continuous business development.

Quality

Our accounting services are defined by precision, reliability, and care, ensuring every client can trust the numbers behind their business decisions.

Cross-border expertise

Operating in 11 countries, Leinonen understands the complexities of cross-border business. We provide reliable accounting and payroll solutions for international companies across markets.

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Accounting & Outsourcing Services

We support our clients' growth by taking care of their accounting and legal needs.

Accounting & Outsourcing Services
Accounting & Outsourcing Services
Accounting & Outsourcing Services

We are dedicated to helping our clients grow by providing full-cycle, high-quality accounting and payroll services. For us, quality means covering every detail, assigning skilled professionals, tailoring each solution to our clients’ needs, continuously improving, and always being easy to work with.

Get in Touch

Save time & eliminate risk by making sure everything is done correctly and on time. No more costly errors or missed deadlines.

01

Contact

Reach out to us by email, through the website contact form, or by phone. We’ll get back to you as soon as possible.

02

Let's Talk

We’ll schedule a virtual meeting with one of our team members to understand your business, needs, and objectives.

03

Offer

After gathering all necessary information, we’ll provide you with a no-obligation proposal tailored to your request.

Recent News & Insights

Sigita Jackuniene - Leinonen
November 11, 2025-

Interview with Sigita Jackuniene – Head of Accounting at Leinonen Lithuania

At Leinonen Baltics, accounting is more than numbers — it’s about trust, precision, and insight that help businesses make confident decisions. Today, we are proud…

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Accounting outsourcing
October 28, 2025

Changing Your Accounting & Payroll Service Provider: Challenges and Solutions

For many businesses, outsourcing the accounting and payroll functions is a practical way to simplify operations while gaining access to financial and legal expertise, optimising costs,…

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Expanding Business Abroad - Leinonen
October 1, 2025

Expanding Business Abroad: 5 Key Considerations When Going Global

In more than 30 years of providing accounting and payroll services in Europe, we have met hundreds of clients wishing to go global. The process…

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