The qilin ransomware group listed gmb.com on its data leak site on 2025-05-16. Country: US Sector: Other Domains named: gmb.com, 25.05.2025.gmb Claim as published on the leak site: All data of this company will be available for download on 25.05.2025.GMB Architecture + Engineering is a full-service architecture and engineering firm of approximately 90 professionals,with offices in Holland, Michigan; Grand Rapids, Michig ...