Black employees at Apple, Bank of America, Capital One and Starbucks give high marks to the workplace culture at the companies, according to a report from Glass door that offers a sense of how minority workers are faring at some of America’s best-known corporations.

The analysis of company ratings and ethnicity appears at a time when major companies, including Microsoft, Wells Fargo and Sales force, have publicly vowed to increase diversity hiring and make their workplaces more welcoming to workers of color. Glass door researchers said their report, released Thursday, highlights companies that are making good on their commitment to diversity and inclusion.

Of the 28 companies analyzed in the report, Apple scored the highest rating, 4.2 out 5.0, from employees who self-identify as Black or African American. About 9% of the California tech giant’s workforce is Black, according to company data from 2018. Bank of America got the second-highest score at 4.0, followed by Starbucks and Capital One (both 3.9).

Bank of America said 13% of its non-managerial staff is Black. At Starbucks, Black Americans represent 8%of the total workforce, according to 2020 data. Black men and women made up 6% and 14%, respectively, of the total workforce at Capital One in 2019.

The Glass door survey also tallied ratings from Black employees at Amazon, Best Buy, IBM, Lowe’s, McDonald’s and other widely known brands. CVS Health, Macy’s, Walgreen’s and the U.S. Postal Service received the lowest ratings from Black employees, according to the report.

CVS Health regularly conducts internal employee surveys about job satisfaction, the company said in a statement.

USPS said in a statement that it’s company policy “to promote the diversity and inclusion of our employees, the customers we serve, and the suppliers we do business with.”

The parent company of Walgreens said it is already taking steps to address the Glassdoor findings.

 “At Walgreens Boots Alliance, diversity, equity and inclusion is a top priority and at the core of everything we do. In order to do it right, we have taken a simple but meaningful approach: We’re listening and responding. While the survey results are disappointing, our executive teams have participated in listening sessions with Black employees, managers and leaders on their experiences, views and feelings. Together, we are taking action to address their feedback,” the company said in a statement to CBS MoneyWatch.