The purpose of this study was to examine the role of environmental consciousness and green intellectual capital (GIC) for green competitive advantage. The association between environmental consciousness and each component of GIC—green human capital, green relational capital, green structural capital—is tested in this study. Tests are also carried out to examine the association of each GIC element with green competitive advantage. Data were collected using an online questionnaire. A total of 237 questionnaires were sent to the CEOs of medium manufacturing companies in Bali Province, Indonesia. There were 72 returned questionnaires that could be analyzed (a 30.37% usable response rate). Data analysis was performed using variance-based structural equation modelling with the partial least square (SEM-PLS) approach with WarpsPLS 7.0. The findings show that there is a positive and significant association between environmental consciousness and each component of GIC: environmental consciousness with green human capital, environmental consciousness with green relational capital and environmental consciousness with green structural capital. The findings also demonstrate that each component of GIC has a significant positive association with green competitive advantage: green human capital with green competitive advantage, green relational capital with green competitive advantage and green structural capital with green competitive advantage. This research implies that going green through the adoption of green practices can contribute to green competitive advantage.