Nuh Cimento Sanayi A.S.
- A producer of cement. Features a catalog of products with technical specifications, financial reports and information on environmental issues.
- http://www.nuhcimento.com.tr/

Gemsan Engineering and Contracting Co.
- A contracting company, the work scope of which is the realization of turn-key projects. Includes references, a list of services and information on the management.
- http://www.gemsan.com.tr/