Sonia
Accounting firm in Espoo offering bookkeeping, payroll and tax advice to businesses in the Helsinki area and across Finland
Highlights
- New on EvolcAdded 2026-10-30
About Sonia
Sonia Oy is a traditional accounting firm (tilitoimisto) based in Espoo, Finland. It provides both conventional bookkeeping and electronic financial administration, and uses only the Procountor software platform for this work.
Services include bookkeeping, payroll, invoicing, company formation and changes, tax planning, corporate restructuring, and assistance with financial planning. The firm serves business clients.
Founded in 1987, Sonia became an authorised member of Taloushallintoliitto in May 2007. Its operating areas are Helsinki, Vantaa, Espoo and Kauniainen, and its electronic accounting services extend to clients elsewhere in Finland.
Product: Bookkeeping, payroll, invoicing, company formation, tax planning and corporate restructuring services, delivered traditionally and electronically on Procountor.
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