Are these the 12 worst companies to work for in America? CVS Health. CVS Health. Employee Rating: 2.7 out of 5. Computer Sciences Corporation. Computer Sciences Corporation. Employee rating: 2.7 out of 5. Dollar General. Dollar General. Employee rating: 2.7 out of 5. Dish Network. DISH Network. Employee rating: 2.6 out of 5. AECOM. AECOM. Sears. Sears. Xerox. Xerox. Kmart. Kmart.