The thegentlemen ransomware group listed Hillside Lumber on its data leak site on 2026-05-09. Country: US Sector: Manufacturing Domains named: hillsidelumber.com Claim as published on the leak site: hillsidelumber.com Hillside Lumber is a family-owned full-service building materials supplier established in 1979, based in Westbrook, Maine. The company serves builders, contractors, and DIY enthusiasts throughout Southern Maine with high-quality lumber, saw mill products, kitchen design, and building supplies. With 38 employees, they provide professional service to both construction professionals and homeowners.