Preserving nature and promoting human rights emerge as pressing challenges in contemporary society. Companies, as prominent economic agents, play a crucial role in building a more equitable and environmentally sustainable world. In this context, associativism stands out as a crucial tool, enabling companies to collaborate jointly with local communities and non-governmental organisations in the creation of projects and initiatives beneficial to all. In the realm of climate change, fossil fuels stand out as the primary emitters of greenhouse gases. Associativism emerges as a valuable tool in addressing climate change, through this collaborative approach, companies can cooperate with local communities and non-governmental organisations in designing projects and initiatives aimed at reducing dependence on fossil fuels and driving the transition to a low-carbon economy. This article investigates how companies, through associativism, can take effective measures for environmental preservation and the prevention of human rights violations in the context of climate change. The research was conducted through literature review and document analysis. The results obtained suggest that sustainable development practices adopted by companies committed to promoting the rights of nature and humans have the potential to reduce the environmental impact of business operations, promote social well-being, and strengthen collaboration between companies, local communities, and civil society organisations. Companies incorporating associational practices to drive sustainability are more likely to achieve the Sustainable Development Goals (SDGs) outlined in the UN’s 2030 Agenda.