The blacklock ransomware group listed Reliance Heating on its data leak site on 2025-05-25. Country: US Sector: Retail & E-Commerce Domains named: www.reliance-hvac.com Claim as published on the leak site: Reliance Heating and Air is a repair, service, replacement, and maintenance company specializing in heating, cooling, air conditioning, heat pumps, ductless mini-splits, refrigeration, and furnaces. They serve residential and commercial clients in the Metro Atlanta and Nashville areas. Revenue: $21.7 Million