The alphv ransomware group listed Constellation Software Inc 2 on its data leak site on 2023-07-26. Sector: Technology Domains named: csisoftware.com Claim as published on the leak site: Constellation Software is an international provider of market-leading software and services to a number of industries. Our mission is to acquire, manage and build market-leading software businesses that develop specialized, mission-critical software solutions to address the specific needs of our particular industries.