CHICAGO, Feb. 14, 2020 /PRNewswire/ -- Grainger (NYSE: GWW ), the leading broad line supplier of maintenance, repair and operating (MRO) products serving businesses and institutions, earned the top score of 100 percent on the 2020 Corporate Equality Index (CEI) and the designation as one of the "Best Places to Work for LGBTQ Equality" for the sixth straight year. The Human Rights Campaign Foundation's CEI is the national benchmarking tool on corporate policies and practices pertinent to lesbian, gay, bisexual, transgender and queer employees. Companies are rated on criteria surrounding workforce protections, inclusive benefits, supporting an inclusive culture and corporate social responsibility, and responsible citizenship. Grainger joins more than 680 major U.S. businesses that achieved the highest marks this year. "At Grainger, we work hard to create a workplace where all our team members feel they belong and can grow.