NuStar Energy

NuStar Energy, a firm that operate pipelines that distribute and store crude oil and other energy products, has three main focuses: safety, philanthropy and loyalty. “Staffers are proud of the company's commitment to giving back to the community, not only through its significant charitable contributions but also by allowing employees to volunteer on company time for major volunteer initiatives,” according to Great Place to Work. “They also rave about the best-in-class benefits like fully funded health care premiums, 401(k) matching and pensions.” Read the Great Place to Work review.