- Turkish Chambers of Civil Engineers ( www.imo.org.tr )

- The Chambers of Architects of Turkey ( www.mimarlarodasi.org.tr )

- Istanbul Chambers of Commerge ( www.ito.org.tr )

- Union of Chambers of Turkish Engineers and Architects ( www.tmmob.org.tr )

- Ankara Chambers of Commerge ( www.atonet.org.tr )

- The Union of Chambers and Commodity Exchanges of Turkey (www.tobb.org.tr)