Constellation Software Inc. is engaged in the development, installation and customization of software as well as in the provisioning of related professional services and support for customers globally. The Company acquires, manages and builds vertical market software businesses. Its segments include the public sector and the private sector. The public sector segment develops and distributes software solutions primarily to government and government-related customers. Its public sector segment includes Volaris Operating Group, Harris Operating Group and Total Specific Solutions Operating Group. The private sector segment develops and distributes software solutions primarily to commercial customers. Its private sector segment includes Jonas Operating Group, Perseus Operating Group and Vela Operating Group. It serves various markets, such as communications, credit unions, drink distribution, tour operators, textiles and apparel, hospitality, notaries, community care, and long-term care.