The payload ransomware group listed Brüninghoff Group on its data leak site on 2026-10-20. Country: DE Sector: Manufacturing Domains named: brueninghoff.de Claim as published on the leak site: Brüninghoff Group (brueninghoff.de) is a German construction and manufacturing company headquartered in Heiden, founded in 1974. The company specializes in turnkey project development, engineering, and the prefabrication of hybrid timber, concrete, and steel building systems. With around 700 employees, it strongly emphasizes sustainable, energy-efficient building methods for commercial, residential, and public architecture.