5C Corridor Highway Zenica Tunnel Construction (Cengiz Construction)
Ankara - Izmir High Speed Train Project (ERG Construction)
Paris Subway
Istanbul Subway (Kalyon Holding)
Istanbul Subway (Kolin Construction)
Ankara Istanbul High Speed Train (Ictas Construction)
Gaziantep Sahinbey Tunnel (Deha Construction)
Kastamonu - Inebolu Tunnel (Cengiz Construction)
Vauk Tunnel (Bayburt Group)
Kop Tunnel (Bayburt Group)
Çaycuma - Bartın Tunnel (ÖDF Yılmazlar Construction)
Northern Marmara Highway (Limak Holding)
Ankara - Sivas High Speed Train Line (Limak Holding)
Ilgaz Mountain Tunnel
Ovit Tunnel
Zigana Mountain Tunnel
Yusufeli Dam Tunnels (Limak Holding)
Yozgat Yerköy - Kayseri High Speed Train (Doğuş-Çelikler-Özkar)