• Marine pile works
• Mini Pile / Bored Pile in situ Piling
. Jet Grouting
• Permeation Grouting
• Low and High Pressure Injection Works
. Slope Protection
• Excavation Retaining Systems
• Soil & Rock Anchors
• Ground Improvement, Underpinning & Design
• Wick Drains
• Diaphragm Walls
• Thin Walls
• Vibro Piling
• CFA Piling
• Dewatering

STFA provides all types of services in geotechnical engineering and contracting. Up-to-date technology, strong logistic capability and in-house manufacturing facilities allow STFA to economically cover a wide range of specialty soil improvement/remediation and foundation work requirements. Comprehensive solutions are offered for tunnels, subways, caverns, galleries, dams, high-rise buildings, pipelines, highways and marine structures.


• Marmaray Project, Dry Docks 1&2, Turkey
• Dp World Yarımca Container Terminal Project, Turkey.
• Socar Akaryakıt Depolama A.Ş. Aliağa Petrol Depolama Terminali Genişletme Projesi., Turkey.
• Turkmenistan International Glass Factory Project, Turkmenistan.
• Doha Metro Gold Line Curtain Grouting Works, Turkmenistan.
• Emirgan Korusu Zemin İyileştirme Project, Turkey.
• IKG Hersek Yakası Kuzey Şantiyesi, Turkey
• Kabataş İskeleleri ve Yakın Çevresi Düzenleme Projesi, Turkey
• Berth 3 Improvement with Jet Grouting Works, Qatar.
• Abu Dhabi Grand Mosque Piling Works, Abu Dhabi,UAE
• Jumeirah Beach Residence, Dubai, U.A.E
• 11 Towers with Podium at Business Bay, Dubai, U.A.E.
• City of Lights, Abu Dhabi, UAE
• Al Nasr Sports Club, Dubai, UAE
• Rixos Ottoman Palace Hotel, Dubai, UAE
• The Lagoons, Dubai, UAE
• Birecik Dam Thin Wall Construction, Turkey
• Keban Dam Weir Improvement, Turkey