The qilin ransomware group listed tennsco.com on its data leak site on 2025-05-20. Country: US Sector: Manufacturing Domains named: tennsco.com, 1.06.2025.founded Claim as published on the leak site: All data of this company will be available for download on 1.06.2025.Founded in 1961, Tennsco manufactures and supplies storage and archiving systems, steel office furniture, industrial and institutional systems, shelving, lockers, and commer ...