dc.description.abstract | The present work aimed to investigate which factors are relevant in the decision of the company to seek adhesion to the BM & FBOVESPA ISE. The following factors were verified for adherence to the ISE: to be recognized by the market as a company that acts with sustainable practices promoting the company's reputation, transparency in the disclosure of company actions, engagement among stakeholders, competitive advantage, new knowledge seeking, cost reduction Long-term capital, anticipation of regulations that can be established in the future, increase in the value of the company, strengthening channels of dialogue and communication with the media and an indicator to measure sustainable actions and practices. And the factors for non-adherence to ISE were: ISE criteria, company strategy, lack of structure, costs, lack of knowledge of ISE's portfolio, no benefits and evaluation for membership. The study is characterized as descriptive, conducted through an interview and with a qualitative approach, using the content analysis method of Bardin (2011) for data treatment. The data collection was based on the set of 243 companies that were considered eligible to compose the ISE for at least one year between 2009 and 2016. We selected 74 companies for sample composition. This group of companies in the sample, in turn, was subdivided into two groups: 1) 22 companies that tried to enter the index portfolio, and another; 2) 52 companies that did not try to join the ISE. It was concluded that companies seek ISE mainly to be recognized by the market and as an indicator to measure sustainable actions and practices, being an important and recognized Brazilian tool that certifies companies that have a greater commitment to social and environmental responsibility. | en |