PurposeThere is no literature that sought the revision and integration of ecological modernization of theory (EMT) and circular economy (CE). This article aims to answer the questions: How have companies developed circular economy practices within their operations? Why have companies invested in circular economy practices? Based on the answers to these questions, it would be possible to understand how the assumptions of EMT explain the adoption of CE practices.Design/methodology/approachThe research method is based on multiple case studies with Brazilian craft brewery companies.FindingsCompanies studied have pursed the adoption of circular economy practices, but the full potential of the use of biological cycles within their processes of production has been hampered by the lack of external policies and clear governance toward circular economy. Thus, pollution prevention policies may be an important driver for organizations be able to advance in circular economy practices.Research limitations/implicationsResearch limitations are coverage only of organizations located in an emerging country. A second limitation is that the data saturation was partially achieved in some of the analyzed cases, especially by the limitation of the time period surveyed (transversal research). The longitudinal evaluation is timely for circular economy surveys.Practical implicationsThe formulation of a regulatory framework through a participative, interactive and decentralized process, capable of delegating responsibilities and incentives to all entities, to contemplate a tax restructuring for the alcoholic beverage sector, could corroborate to create a new standard of action for the sector.Social implicationsThis document highlights how the principles of ecological modernization can contribute to the advancement of the circular economy. The understanding can help in the design of processes that provide circular and sustainable operations as a social good in a effective value.Originality/valueThe principles from EMT, such as the development of an institutional environment towards corporate environmental proactive, could enhance the adoption of circular economy practices within the brewery sector. Despite of the class association of the brewery sector has supported the companies studied to move forward in other matters, a clear governance is necessary to guide organizations towards circular economy practices.