Published together with our partner, Fortune, The Best Workplaces for Diversity ranking is based upon feedback from 448,456 employees at Great Place to Work–Certified companies who completed our Trust Index© Employee Survey. Employees from all backgrounds answered 58 questions about how frequently they experience the behaviors that create a great workplace, considering everything from how comfortable they are being themselves; the degree of favoritism or insider politics they observe in the workplace; the fairness of promotions; the feeling of honest connection with coworkers; their access to senior leadership; and who receives information and professional development and who doesn’t.

To determine the winners, Great Place to Work analyzed how positively women, minorities and LGBTQ employees report experiencing their workplace overall, paying special attention to an index of factors where these employees tend to have a less positive experience than their colleagues. Rankings take into account how favorably women, minorities and LGBTQ employees experience their workplace relative to their male, Caucasian and heterosexual colleagues' experiences; as well as the degree of representation women and minorities enjoy within the workforce as a whole, management and executive roles. Organizations needed to have at least 50 employees to be considered and are compared to peers of a similar size.