Professional Accounting & Payroll Outsourcing Services
Expanding into a new country can be complex, even for businesses experienced in cross-border operations. From compliance to payroll, there are countless challenges that can slow your growth.
That’s where Leinonen comes in. For over 36 years, we have provided international accounting and payroll services to foreign-owned businesses across Europe. Hundreds of companies have trusted us to help them set up, operate smoothly, and thrive - and we can do the same for you.

Our Services

Accounting
Our professional accountants work closely with your team to ensure full compliance with local and international standards. With our corporate accounting solutions, you can focus on growing your business while we handle the numbers.

Payroll Management
Leinonen takes care of payroll calculations, reporting, and compliance updates across borders. With our corporate payroll services, you can focus on your people while we handle every detail.

Company Registration
Entering a new market? Leinonen helps with foreign company registration, legal setup, and local compliance so you can focus on growing your international business.

Management Reporting
Our management reporting service gives you a clear, data-driven overview of your company’s financial health. At Leinonen, we transform financial figures into actionable insights so you can make confident, well-informed business decisions.

Taxation
Navigating tax obligations in a foreign country can be complex, especially when operating across multiple countries. At Leinonen, we provide international taxation and cross-border tax accounting services that ensure full compliance and help you make informed, strategic business decisions.

Legal Services
Operating across borders means facing complex legal requirements that vary from country to country. At Leinonen, we provide international legal services designed to support your company in every stage of its development, from incorporation to daily operations and beyond.
Comprehensive Support for Cross-Border Companies Throughout Their Growth


PRE-ESTABLISHMENT
We help you determine the optimal business structure: permanent establishment, limited liability company, or another form, tailored to your goals and long-term benefits.
ESTABLISHMENT
Assistance with company formation, corporate bank account setup, and local e-residency applications ensures a smooth start to your cross-border operations.
BUSINESS SET UP
From employment contracts to office or warehouse arrangements, we provide practical support with assistance of our trusted local partners, ensuring compliance with local legislation.
RUNNING THE BUSINESS
Our international accounting and payroll services handle everything from account management and reconciliation to payroll processing, giving you accurate financial control across borders.
FURTHER GROWTH & DEVELOPMENT
Leinonen provides full-cycle accounting, payroll, tax, and legal outsourcing services – supporting your business from expansion to restructuring or even liquidation.
