Constellation Software Inc. (Constellation) acquires, manages and builds vertical market software (VMS) businesses. The Company operates in two segments: the public sector reportable segment, which includes business units focused primarily on government and government related customers and the private sector reportable segment, which includes business units focused primarily on commercial customers. In February 2013, its Volaris Group Inc acquired Information Distribution & Marketing, Inc. In March 2013, the Company�s wholly-owned subsidiary, Gary Jonas Computing Ltd. completed the acquisition of Club Solutions from Fiserv, Inc. In June 2013, the Company announced that it has completed, through wholly owned subsidiary N. Harris Computer Corporation (Harris), the acquisition of QuadraMed Corporation (QuadraMed). In September 2013, the Company�s subsidiary, Volaris Group acquired Library Management vertical. In November 2013, the Company's subsidiary acquired Sand Technology Inc.