TUSIAD is a voluntary-based civil society organization comprising leading industrial and service sector companies of Turkey. It contributes to building a society embracing competitive market economy, participatory democracy and sustainable development. With its stable growth in the registered economy, TUSIAD plays a significant role in the economy of Turkey through the companies its members represent. Its member companies generate about half of all non-governmental value-added created in Turkey. Excluding energy imports, TUSIAD member companies realize 80% of Turkey's total foreign trade.