In the context of global economic instability and growing environmental challenges, businesses are faced with the need to find new tools to achieve financial sustainability. One of these tools is sustainable marketing, a concept based on the integration of sustainable development principles into companies’ marketing strategies. The author considers the areas of leveling financial imbalances through the use of sustainable marketing, analyzes its impact on key financial indicators of leading international companies, and substantiates the feasibility of its use in strategic management. The study analyzed the activities of companies such as Tesla, Adidas, Puma, H&M, and others that actively use sustainable marketing strategies. It has been proven that the use of environmentally friendly technologies, the introduction of circular economy principles, and the development of ethical production standards lead to revenue growth, increased capitalization, reduced financial risks, and increased consumer loyalty. For example, Adidas increased its revenue by 9% due to the release of products from recycled materials, and Microsoft, investing in renewable energy sources, demonstrated stable profit growth. In addition, the study found that companies that adhere to sustainable development principles are becoming more attractive to investors. In today’s market conditions, the presence of an ESG-oriented strategy allows for the reduction of regulatory and operational risks, as well as forming long-term competitive advantages. Thus, the article proves the need to implement sustainable marketing as a tool for the financial stabilization of enterprises. The authors conclude that the integration of sustainable business practices into marketing strategies not only helps reduce financial imbalances but also forms the basis for sustainable economic growth and strengthening market positions in the long term.