Topmast Oy is a limited company based in Lahti, registered in 2023. Its taxable income in 2024 was 772 € and its income taxes 154 €.
Taxes
Measured by taxable income, Topmast Oy is in the lower half of the industry class construction of utility projects for electricity and telecommunications (155 companies with taxable income; median 33 t€).
Taxable income is the profit as calculated for taxation, not revenue. Public data from the Finnish Tax Administration; figures for 2025 are published in November 2026. Revenue, financial ratios and employee numbers are shown once the company has filed its financial statements digitally.
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