Introduction: This research aims to find out how green marketing, Islamic corporate social responsibility, and brand image influence purchase decision PT. Paragon Technology Innovation Product. Research Methods: This research uses a quantitative descriptive approach with primary data as the data used. The source of data collected use purposive sampling technique, came from distributing questionnaires to respondents in the Jabodetabek area through the consument of PT. Paragon Technology Innovation. The analysis technique used is Partial Least Square - Structural Equation Modeling (PLS-SEM). Results: Green marketing does not have a significant effect on the purchase decision of PT. Paragon products in the Jabodetabek area. Green marketing has a significant positive effect on the brand image of PT. Paragon products in the Jabodetabek area. Islamic corporate social responsibility has a significant positive effect on the purchase decision of PT. Paragon products in the Jabodetabek area. Islamic corporate social responsibility has a significant positive effect on the brand image of PT. Paragon products in the Jabodetabek area. Brand image has a significant positive effect on the purchase decision of PT. Paragon products in the Jabodetabek area.