This research examines the effect of Sustainability Maturity Models (SMMs) regarding (Unilever’s environmental and competitive performance). For the time period of the studies carried out from 2019 to 2023, it is assessed how Unilever has benefited from SMMs in terms of reducing carbon emissions, water usage, waste management and improving its competitive edge against Nestle and Procter and Gamble (P&G). Using secondary data from company report and other industry papers, the analysis of the usage of renewable energy has achieved 60% level and waste of plastic has been reduced by 50%. Unilever is presented as a pioneer in ethical business practices. Environmental sustainability capabilities that SMMs provided have helped Unilever to integrate corporate social responsibility within its business model and reap environmental and economic rewards, respectively. Strategies to enhance the sustainability performance still further include adopting new sustainability technologies and creating unified industry standards.
