Katto ja rakennus JK Oy is a limited company based in Lohja, registered in 2001. Public buyers bought 11 t€ from it in 2022–2023; the largest buyer is Stara-liikelaitos, Helsinki (Helsinki).
Taxes
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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