The thegentlemen ransomware group listed Don Hierro on its data leak site on 2026-09-30. Country: MX Sector: Manufacturing Domains named: donhierro.com, zoominfo.com Claim as published on the leak site: donhierro.com zoominfo.com/c/don-hierro-sl/347708573 Don Hierro Corporation, S.A. (roots to 1969, Panama City) is a Panama-based engineering, construction and manufacturing firm specializing in hydraulic works, concrete caissons, foundations and industrial building. With ISO 9001/14001/45001 certifications and 39,000 m² of production facilities in Colón (its own concrete plants, quarries and caisson yards), it self-manufactures critical components — a rare vertical integration in Central America