Konsulttitoimisto Kolona Oy is a limited company based in Helsinki, registered in 2017. Its taxable income in 2024 was 156 t€ and its income taxes 32 t€. Public buyers bought 344 t€ from it in 2022–2025; the largest buyer is Stara-liikelaitos, Helsinki (Helsinki).
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Taxes
Measured by taxable income, Konsulttitoimisto Kolona Oy is in the top quarter of the industry class structural engineering design and technical consultancy (399 companies with taxable income; median 24 t€, 6,5 times the median).
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.