We are the largest Italian independent fully employee - owned engineering company, ranked in the ENR TOP 225 INTERNATIONAL DESIGN FIRMS, offering consulting services for 20 years in planning, design, pmc of transport infrastructures, hospitals & buildings, energy & water.

Main projects:
 
AIRPORTS 
Italy: Bologna Guglielmo Marconi - Rome Fiumicino Leonardo da Vinci – Alghero - HEMS Pieve di Cadore – Aosta Corrado Gex 
Romania: Bucharest Henri Coanda – Craiova - Tulcea – Bacau
Oman: Muscat - Adam Airbase
Saudi Arabia: Military Airport - Helipad Riyadh
Nigeria: Uyo

RAILWAYS
Italy: Brenner Basis Tunnel - Turin High Speed cross rail 
Qatar: Metro Doha Red Line
Saudi Arabia: Metro Riyadh Line 3 - Metro Makkah - Metro Dammam
Romania: Brasov Simeria
Oman: Oman rail project
Algeria: Oued Tlelat/Tlemcen

ROADS
Italy: A3 SA – RC - Pedemontana Lombarda - 3 lane of A4 motorway - Ceppo Morelli Tunnel
Romania: Green Line Public Transport Bistrita – DJ 105A - DJ104D higway, Brasov - DN 5 highway
Bulgaria: V Tarnovo Lot 7
Saudi Arabia: Riyadh Bus Stations
Algeria: RN77 Highway Djen-Djen Port - El-Eulma
India: 2300 m. of tunnels National Highway 21

WATER & ENERGY
Italy: New Off-shore Terminal in Venice - Enel Green Power - Purifier of Lampedusa - Port of Ravenna - Caorso Nuclear Plant - Main Port Syracuse 
Oman: New Main Gate of Salalah Port
India: Smart Industrial Port City Kandla
Albania: Bajkaj Landfill

HOSPITALS & BUILDINGS
Italy: New Genoa Galliera Hospital - La Spezia Hospital - La Spezia Hospital - Rome Mercato Esquilino - Ferrara “Diamanti Palace” - Cassino Church of the Holy Family - Udine University Campus de Rizzi
Poland: Krakow Music Center
Romania: Târgu Mures County Hospital
Oman: 17 hospitals – Nizwa & Rusayl Industrial Estate - Fuel Facilities Qaboos Base - Genetic resources center
Saudi Arabia: Riyadh Hospital & Cardiac Center - KAP2C2 Military Headquarters 
Rail Baltica Architectural Visual and Landscape Guidelines 


Architecture

Construction

Transportation

3TI Progetti

3TI Progetti's headquarters in Roma, Italy

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