This research seeks to explore the nature of the relationship between green marketing and the achievement of sustainable development in eco-friendly companies in Egypt. The study was conducted on a sample of Egyptian companies that adopt eco-friendly practices and integrate sustainability into their marketing strategies. A survey was used to collect data from 230 employees, who were randomly selected to ensure comprehensive representation of various categories within eco-friendly companies in Egypt, with the aim of understanding the impact of green marketing practices on both environmental and economic performance, based on employee perspectives.