Quality Knowhow Karjalainen Oy is a limited company based in Lahti, registered in 1997. Its taxable income in 2024 was 547 t€ and its income taxes 111 t€. Public buyers bought 163 t€ from it in 2022–2026; the largest buyer is Valtion tieto- ja viestintätekniikkakeskus Valtori (Valtiovarainministeriön hallinnonala).
Taxes
Measured by taxable income, Quality Knowhow Karjalainen Oy is in the top 10 % of the industry class business and other management consultancy activities (7664 companies with taxable income; median 16 t€, 35 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.
Sales to public buyers
Largest buyers
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