Established in 1977, Siyahkalem has been one of the most credible Turkish construction companies involved in construction projects undertaken domestically and internationally. Siyahkalem has constructed 7,600 residences, seven schools, numerous shopping centers, nurseries, sport facilities and highways in the last 5 years, located in various provinces of Turkey, along with architectural projects including new facilities of the Ottoman State Archieves, İstanbul mail processing center, the restoration of Feshane, and the Ankara Ulus Mosque.