ZEF Oy is a limited company based in Oulu, registered in 1985. Its taxable income in 2024 was 10 t€ and its income taxes 2 075 €. Public buyers bought 111 t€ from it in 2022–2026; the largest buyer is Terveyden ja hyvinvoinnin laitos (Sosiaali- ja terveysministeriön hallinnonala).
Taxes
Measured by taxable income, ZEF Oy is in the lower half of the industry class computer programming activities (3157 companies with taxable income; median 27 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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