Shaft Drillers International

Shaft Drillers International was compromised in a ransomware attack attributed to medusa in March 2026. The organization, operating in an undisclosed sector in Unknown, was added to the group's data leak site as part of an extortion campaign.

medusa operates as a financially motivated ransomware-as-a-service (RaaS) operation, exfiltrating sensitive data and threatening public disclosure to pressure victims into paying ransom demands.

Shaft Drillers International is a U.S.-based construction and drilling services company headquartered in Mt. Morris, Pennsylvania. It is a leader in specialized geotechnical construction, large-diameter shaft drilling, and complex infrastructure projects, offering solutions in ground stabilization, deep foundations, dam construction and rehabilitation, and water resource development. The company operates through a network of subsidiaries that provide a broad range of services including drilling, earthwork, structural support systems, soil stabilization, and well services. Known for innovative technology and experienced teams, Shaft Drillers International serves civil, mining, energy, and industrial sectors with durable, cost-effective construction solutions. The company headquarters is located in 130 Meadow Ridge Road, Mount Morris, PA 15349, United States. 501-1,000 Employees