The dragonforce ransomware group listed Clark Mechanical on its data leak site on 2025-06-16. Country: US Sector: Manufacturing Domains named: www.clarkmechanicalinc.com Claim as published on the leak site: The Clark Mechanical Company, LLC. is a privately owned, full service HVAC contracting firm. We provide a wide range of HVAC and plumbing services to commercial clients. The "Work hard and take pride in your work" attitude has been passed down thru the generations. The Clark family has been in the construction industry since 1916.