Quadrifoglio Drilling Srl

Quadrifoglio Drilling Srl is an Italian specialist in horizontal directional drilling (HDD) for high‑voltage power and pipeline infrastructure, with a long-standing role in submarine and offshore cable projects. Operating within the high‑voltage (HV) and extra‑high voltage sector, the company executes sea‑land transitions and underground crossings that enable submarine HVAC and HVDC links to connect to onshore grids. It has been part of the CEBAT group since October 2020 and is described as an important Italian HDD player within that group’s integrated offering for cable systems and civil works. In the high‑voltage field, Quadrifoglio Drilling has for decades played a key role on major Italian offshore HV links, including projects such as SAPEI, Calabria–Sicily, Italy–Montenegro, Italy–Malta and the Capri–Sorrento interconnection. It was selected by Prysmian Group to perform the HDD marine landfalls for the 132 kV HVAC link between Lanzarote and Fuerteventura in the Canary Islands, involving drilling through basaltic soil and installing large HDPE pipes to host submarine power cables. The company has also been cited as the CEBAT-controlled contractor executing HDD works for a new submarine pipeline landfall in Minori on the Amalfi Coast, and it maintains membership in the Italian Association for Trenchless Technology, reflecting its positioning in advanced no‑dig construction methods. Quadrifoglio Drilling operates internationally, including through a registered branch in Spain, and its HDD techniques are used to minimise visual and environmental impact, safeguard marine ecosystems at cable and pipeline landings, and extend infrastructure lifetime by reducing exposure to seabed erosion while avoiding disruption of beaches and coastal areas.