{"slug":"3si-security-systems","name":"3SI Security Systems","url":"https://www.gp-intel.com/company/3si-security-systems","sector":"Business Services","country":"United States","hq_city":null,"website":null,"founded_year":null,"ipo_year":null,"status":"exited","current_owner":null,"current_holder":{"name":"LLR Partners","names":["LLR Partners"],"since_year":2017,"basis":"sponsor_buyout"},"ownership_periods":1,"ownership":[{"owner":"Stirling Square Capital Partners","fund":"Stirling Square Capital Partners II","fund_vintage":2007,"entry_year":2006,"exit_year":2017,"is_exit":true,"deal_type":"Secondary","buyer":"LLR Partners","moic":null,"sector":"Business Services"}],"source":"gp-intel.com","license":"CC-BY-4.0","updated_at":"2026-07-08T21:03:43.614Z"}