Graafinen Suunnittelutoimisto DUO Oy (GSD) is a limited company based in Seinäjoki, registered in 2008. Public buyers bought 14 t€ from it in 2024–2026; the largest buyer is Opetushallitus (Opetus- ja kulttuuriministeriön hallinnonala).
In business18 yrsregistered 2.6.2008
Sales to public buyers14 t€2024–2026
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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.