The sinobi ransomware group listed Belleville International on its data leak site on 2025-09-28. Country: US Sector: Manufacturing Domains named: bellevilleintl.com Claim as published on the leak site: Belleville International specializes in precision load solutions, providing durable washers and disc springs designed for high-stress environments across various industries. Their product offerings include flange washers, valve components, and downhole drilling springs, all tailored to meet specific application needs. The company emphasizes customer-centric services, including 24/7 emergency support and quick turnaround on custom and stock products. With a commitment to quality and full traceability, Belleville International serves clients in sectors such as oil and gas drilling, valve manufacturing, aerospace, and automotive racing.