- General Directorate of Infrastructure Investments, Adapazarı – Blacksea Ereğli Railway Project Drilling Works, In-situ Tests and Soil Mechanics Laboratory Services, ENET PROJECT INVESTIGATING and CONSULTING CO., 1997
- General Directorate of Highways, Geotechnical Investigation and Reporting of Söke – Milas Highway, DOĞA ENG.- FKB CO., 1997
- General Directorate of Infrastructure Investments, Bandırma – Bursa – Ayazma-Osmaneli, Ayazma – Inönü Railway Geotechnical Drillings and Pressuremeter Tests, ERKA- AS LTD CO., 1999
- General Directorate of Highways, Geotechnical Investigation and Reporting for Çine Dam Highway, ÖZKAR CONS. CO., 1999
- General Directorate of Highways, Geotechnical Drilling Works of Ankara – Pozantı Motorway, Gölcük- Pozantı Section, YÜKSEL DOMANIÇ LTD. CO., 2000
- General Directorate of Highways, Geotechnical Drilling Works, In-situ Tests, Soil Mechanics Laboratory Tests and Natural Construction Material Investigations for Ankara – Pozantı Motorway , Ortaköy – Gölcük Section, DAR ENGINEERING CONSULTING CO., 2001
- Tunnel Drillings of Eskişehir – Köseköy Railway Project, YÜKSEL PROJECT CO., 2003
- General Directorate of Highways, Geotechnical Drilling Works, In-Situ Tests, Soil Mechanics Laboratory Tests and Natural Construction Material Investigations for Ortaköy – Gölcük Section of Ankara – Pozantı Motorway, DAR ENGINEERING CONS. CO., 2003
- 4000 m Drilling, Laboratory and Geotechnical Works of Ankara – Eskişehir Railway Project, C. STATE RAILWAYS (ALARKO & OHL JOINTVENTURE), 2004
- Engineering Services of Artova –Sulusaray Project (Joint Venture), GENERAL DIRECTORATE OF HIGHWAYS, 2005
- Ground Investigations of F.Altay – Balçova Dokuz Eylül University within the scope of İzmir Light Rail System, IZMIR METROPOLITAN MUNICIPALITY, 2005
- Ground Investigations of Balçova Dokuz Eylül University Hospital – Narlıdere within the scope of İzmir Light Rail System Project, IZMIR METROPOLITAN MUNICIPALITY, 2006
- General Directorate of Turkish State Railways, Preparing Soil Investigation Report of Menderes – Torbalı (27 km) Railway, BOTEK BOĞAZIÇI TECHNICAL CONS. CO., 2008
- General Directorate of Turkish State Railways, Preparing Geotechnical Report of Manisa-Soma Station and Soma-Eli Coal Mining Railway Connection Line Projects (1st Part 0+000,00– 19+060.03/2nd 0+000,00–4+341.65), AKSA PROJECT Con. Cons. Trade Ltd. Co., 2009
- General Directorate of Turkish State Railways, Ground Investigatons and Preparing Geotechnical Reports of Manisa-Menemen Railway, BOTEK ENG. CONS. CO., 2011
- General Directorate of Highways, Ground Investigations of Izmir-Urla-Çeşme Highway, Ikiztepe-Konak-Doğanlar City Transition, Konak-Yeşildere Access Road and Konak Tunnel, TEMELSU INT. ENG. SERVICES CO., 2011
- General Directorate of Highways, Geotechnical Services of Foça-Yeni Foça Way, BOTEK ENG. CONS. CO., 2012
- General Directorate of Highways, Geotechnical Services of Gönen-Manyas Way, BOTEK ENG. CONS. CO., 2013
- General Directorate of Highways, Geotechnical Services of Pınarbaşı-Gürün Way, BOTEK ENG. CONS. CO., 2014
- Drilling Works, Laboratory Works and Preparing Soil Investigation Reports within the scope of Ashgabat-Turkmenbashi Highway Project, POLIMEKS CONS. and IND.TRADE CO., 2017