4. A Fortune 500 Company
Tesla, what looked like a small-town start-up back in 2003, is now one of the most successful companies in the world. Its emissions-free cars have become so popular that factories are operating around the clock to keep up with orders. In 2017, the company was inducted into Fortune 500.
However, with this immense success comes the criticism that the working conditions at Tesla factories are unsafe. Workers are forced to work long hours without taking enough breaks, and at one point, Musk admitted that he was sleeping on the floor in his office.