Upsi
Accounting, payroll and tax services for small and medium-sized businesses in Vantaa
Highlights
- New on EvolcAdded 2026-10-28
About Upsi
Upsi Oy is an accounting firm providing bookkeeping, financial statements, tax returns and payroll services. It supports both traditional and electronic accounting, and offers tax and corporate law consulting and controller services.
Most of its clients are small and medium-sized businesses. It also provides tax services to individuals and offers rented software for sales invoicing and electronic purchase invoice processing.
The business began in 1976, and Upsi Oy was founded in 1977. It is headquartered in Vantaa and is an authorised member of the Finnish Association of Accounting Firms.
Product: Accounting, payroll, tax, controller and financial administration services, alongside rented invoicing software.
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