In recent years, companies have recognized the benefits of adopting a proactive approach to the environment. As well as improving efficiency and gaining competitive advantageAdvantages, they can also reduce legal compliance costs. Environmental managementManagement is the system used by companies to minimize or eliminate the negative impacts of their activities on the environment. However, many companies believe that taking measures to protect the environment will increase their production costs. However, some companies have shown that it is possible to make a profit and protect the environment at the same time. To do this, companies need to be creative and have internal conditions that allow them to turn environmental restrictions and threats into business opportunities. Over the years, companies have adopted environmental management systemsEnvironmental management system to improve their relationship with the environment and gain the credibility of society. This allows them to stand out from those that only fulfill legal requirements and generates a competitive advantageAdvantages in the market. The concept of sustainable developmentSustainable development is one that meets the needs of the present without compromising the ability to meet the needs of future generations. The Triple Bottom Line approach, which evaluates a company’s economic, socialSocial, and environmental performancePerformance, is widely discussed in the literature. Corporate sustainabilityCorporate sustainability is linked to these three aspects: economic prosperity, environmental quality, and socialSocial justice. Companies that manage to turn sustainabilitySustainability into a business opportunity gain a competitive advantageAdvantages and are recognized by stakeholdersStakeholders. The Brazilian animal protein industry has expanded internationally, acquiring processed food brands and serving as an example for other Brazilian companiesBrazilian companies that want to internationalize. Investing in sustainabilitySustainability in the animal protein industry brings financial returns and also benefits society. Furthermore, promoting improvements with a focus on sustainabilitySustainability increases productivity and product quality. The food and beverage industry are the largest in the country, and concern about animal welfare and the environmental impactsEnvironmental impacts of livestock production has become an important issue in the managementManagement of animal protein companies. Meatpacking plants, which emerged in the 1920s, are responsible for producing fresh meat and other related products. The complexity of the production chain has made it necessary to seek quality and differentiation for products. SustainabilitySustainability is a relevant topic in business managementManagement, as it contributes to reputation and brand protection. The Global Reporting Initiative provides standards for voluntary environmental and socialSocial performancePerformance reports, helping companies and organizations to take responsibilityResponsibility for their impacts and communicate globally. SustainabilitySustainability assessment and decisions for a sustainable future must be made in a structured, transparent and reliable way. The Technique of Optimal Solution Similarity (TOPSISSolution Similarity Technique (Topsis)) is one of the tools that can be used to assess the sustainabilitySustainability of animal protein companies. This research aims to develop sustainabilitySustainability analyses based on the Triple Bottom Line and TOPSISSolution Similarity Technique (Topsis) for the managementManagement of these companies.