Bitrix24 is a free ERP with CRM tailored for sales-oriented organizations, available in both cloud and on-premise versions, launched in 2012 by co-founder Sergey Rizhikov. It targets small to large enterprises, providing functionalities like HR management, project management, and marketing automation, supported by Amazon Web Services for secure SaaS hosting. The software is used by over 600,000 organizations, offering various pricing plans and extensive features for streamlined business operations.