America?s 12 worst companies to work for For the fourth consecutive year, 24/7 Wall St. has identified the nation’s worst companies to work for. 24/7 Wall St. analyzed thousands of employee reviews from jobs and career website Glassdoor, which has compiled data on more than 400,000 companies around the world. The worst company ratings ranged from 2.3 to 2.7 out of 5, significantly lower than the 3.2 average company rating on Glassdoor. These are the 12 U.S. companies with the lowest employee ratings.