Siris Capital Group, LLC and Clearlake Capital Group, L.P. acquired majority stake in Constant Contact, Inc. from Endurance International Group Holdings, Inc. on February 10, 2021. Siris Capital Group, LLC and Clearlake Capital Group, L.P. completed the acquisition of majority stake in Constant Contact, Inc. from Endurance International Group Holdings, Inc. on February 10, 2021.