Revenue in 2020: Not provided RSM US LLP (RSM), a leading provider of audit, tax and consulting services scored its first year on the list in which the firm stood out for exceptional employee support during the COVID-19 pandemic, including providing childcare support, increased PTO and physical and mental health offers. Cisco, based in San Jose, California, topped this year's list. The company, which makes network and other communications equipment, employed 36,374 people as of March 2021. Cisco, ranked fourth last year, has been on the list every year since its creation. Rounding out the top 5 were Salesforce, based in San Francisco; Hilton, based in McLean, Virginia; Wegmans, based in Rochester, New York; and Rocket Companies, based in Detroit, Michigan.