Upsi Oy

Upsi Oy is a TAL-authorized accounting firm based in Tikkurila, Vantaa, Finland, offering bookkeeping, payroll, auditing, and electronic financial services since 1976. The firm serves primarily small and medium-sized enterprises and also provides international business accounting services leveraging its proximity to Helsinki-Vantaa Airport. With 40 years of client experience, Upsi Oy combines traditional and fully digital financial administration tailored to each client's needs.