Name

Leinonen

Legal name

Leinonen Group

Website

https://leinonen.eu

Company type

Private

Founded year

1989

Operating status

Operating

Headcount range

101–250 employees

Ownership category

akta.pro rank

Product category

Accounting & Financial Outsourcing

NAICS

Offices of Certified Public Accountants (541211), Administrative and Support Services (561)

SIC

Finance Services (6199)

akta.pro primary industry

Billing & Revenue Operations (Subscription/Usage Billing, Rating, Order-to-Cash Support) (BPAAAGAD)

Keywords

• Cross-border accounting
• Payroll outsourcing
• Tax compliance services
• Company registration
• Legal advisory

Headquarters

HQ city

Tallinn

HQ country

Estonia

HQ region

Europe

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Accounting & Financial Outsourcing: Full-cycle accounting services including bookkeeping, financial reporting, payroll management, tax compliance, and legal services for businesses operating across borders.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Leinonen is an international accounting and business process outsourcing firm that delivers full-cycle accounting, payroll management, tax advisory and compliance, company registration, management reporting, and legal services. The firm serves foreign-owned and local businesses operating across borders in 11 European and Central Asian countries, with 270+ multilingual accountants, tax, and legal consultants delivering personalized service under Finnish-rooted management principles.

Product overview

Leinonen offers a unified suite of business process outsourcing services centered on cross-border financial and legal management. The core portfolio comprises six integrated service lines: Accounting (full-cycle bookkeeping and financial reporting), Payroll Management (payroll processing and compliance), Company Registration (new entity establishment abroad), Management Reporting (financial analysis and decision support), Taxation (tax advisory and compliance), and Legal Services (employment law and regulatory support). These services are delivered by experienced, multilingual professionals across 11 countries, enabling international companies to outsource non-core administrative functions while maintaining compliance with local regulations. The company emphasizes its Finnish management values of reliability, ethics, and transparency, positioning itself as a stable long-term partner for foreign-owned businesses entering or operating in European markets.

Differentiator

Problem solved

Functional benefit

Products and services

• Accounting Services Full-cycle accounting services including transaction coding, accounts receivable, accounts payable, and financial reporting, delivered with precision, reliability, and care for businesses operating across borders.
• Payroll Management Comprehensive payroll processing services including salary reporting, tax withholding, and compliance with local labor regulations across all operating countries.
• Company Registration / Company Establishment Assistance with establishing new companies in foreign markets, including navigating local regulations, company formation paperwork, and compliance setup.
• Management Reporting

Named customers2 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration6 records

Partnerships

Four partnerships are on record, tiered core and minor.

• Bulgarian Business Leaders Forum (BBLF)coreStrategic or Co-development Partner · 26 September 2023Leinonen Bulgaria became a member of the Bulgarian Business Leaders Forum. At a special ceremony on September 26, 2023, an honorary plaque of membership was presented.
• SBC Global AlliancecoreStrategic or Co-development PartnerSBC Global Alliance is a global association of leading firms providing accounting, audit and business advisory services. Leinonen Norway is a member of this alliance, providing access to international network of accounting firms.
• Scandinavian-Polish Chamber of Commerce (SPCC)minorGTM or Marketing PartnerLeinonen Poland is a member of the Scandinavian-Polish Chamber of Commerce, providing networking and business development opportunities in the Polish market.
• Regnskap NorgecoreChannel Partner/ Reseller/ DistributorLeinonen Norway is authorized to do accounting/payroll for others by Finanstilsynet (Norwegian Financial Supervisory Authority) and is a member of Regnskap Norge.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Mazars: International accounting, tax, and advisory firm operating across more than 90 countries, with a mid-market focus on cross-border outsourcing and compliance — directly comparable to Leinonen in target customer (internationalizing SMBs) and service mix.
• RSM International: Global mid-tier accounting and advisory network providing audit, tax, and consulting services across 120+ countries, with strong cross-border capabilities aimed at mid-market international clients — a comparable peer in scale and target segment.
• Andersen Global: Global tax and legal services firm with member and collaborating firms across 170+ locations, specializing in cross-border tax compliance and advisory — comparable in targeting internationally active mid-market clients.
• HLB International: Global advisory and accounting network operating in 150+ countries, with a mid-market focus on cross-border accounting, tax compliance, and advisory — a comparable peer for international companies needing multi-jurisdiction outsourcing.
• Eurofast: Regional accounting, tax, and advisory firm operating across Central and Southeastern Europe and the Middle East, with a comparable model of cross-border professional services for internationalizing companies in adjacent geographies.
• PKF International: Global mid-tier accounting network of independent firms providing accounting, tax, and business advisory services across 150+ countries — comparable to Leinonen in targeting international SMBs with cross-border compliance and outsourcing needs.
• Baker Tilly: Global advisory, tax, and accounting firm operating across 140+ territories, with mid-market and cross-border services directly comparable to Leinonen's international outsourcing portfolio.
• Crowe Global: Top-10 global accounting network serving mid-market and large international clients across 130+ countries with audit, tax, and advisory services — comparable to Leinonen in mid-market cross-border positioning.
• TMF Group: Global provider of accounting, tax, payroll, and legal services across 80+ jurisdictions, with a directly comparable multi-country outsourcing model targeting companies operating internationally — a near-direct competitor to Leinonen's cross-border service suite.

Broad incumbents

• BDO International: One of the largest global accounting networks, offering cross-border accounting, tax, and advisory services through member firms in 160+ countries — a broader incumbent that overlaps with Leinonen in the international accounting outsourcing space, particularly for larger cross-border mandates.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/leinonengroup
• Facebookfacebook.com/LeinonenAccounting

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Leinonen