Kolmiokirja Oy is a limited company based in Oulu, registered in 1982. Its taxable income in 2024 was 23 t€ and its income taxes 4 565 €. Public buyers bought 135 € from it in 2022–2024; the largest buyer is Perhe- Ja Sos.palv Ja Oys-psyk (Pohjois-Pohjanmaan hyvinvointialue).
Taxes
Measured by taxable income, Kolmiokirja Oy is in the upper half of the industry class publishing of other journals and periodicals (56 companies with taxable income; median 23 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.
Sales to public buyers
Largest buyers
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