This study explores the impact of green marketing strategies on the environmental and market performance of companies in the consumer goods sector, with a specific focus on Pakistan—a developing economy facing rapid urbanization and environmental challenges. Recognizing the growing consumer demand for sustainable practices, this research delves into how green marketing can serve as a vital tool for companies to align their business objectives with environmental responsibilities. Through a qualitative case study approach, involving semi-structured interviews with stakeholders and analysis of sustainability reports and consumer feedback, the study aims to uncover the effectiveness of green marketing strategies. These strategies encompass sustainable product development, eco-labeling, environmentally friendly packaging, and eco-centric promotional activities. Findings indicate that green marketing significantly contributes to improving a company's environmental performance, evidenced by carbon footprint reduction, waste management efficiency, and sustainable sourcing. Moreover, such strategies positively affect market performance, enhancing sales growth, brand loyalty, and consumer perception. Importantly, the study highlights the challenges of greenwashing and consumer skepticism, emphasizing the need for authenticity in green marketing efforts. Additionally, gender analysis revealed uniform responses across male and female participants regarding the recognition of sustainability efforts and the impacts of green marketing, suggesting a broad consensus on the value of green practices irrespective of gender. This research not only bridges the gap in literature by focusing on the dynamics of green marketing in a developing country but also provides practical insights for companies and policymakers aiming to navigate the sustainability landscape in the consumer goods sector. The study underscores the strategic importance of green marketing initiatives in driving sustainable business growth and environmental stewardship, offering a pathway towards a more sustainable future.