According to a recent study, four American health insurers are among the top ten global insurers by net premiums issued. According to the study, all four of the top ten U.S. companies reported double-digit growth in net premiums written in 2020. Because of its key skills in clinical expertise, innovative technology, and data and health information, UnitedHealth Group is ranked first on the list. Centene is the fourth place winner, with an almost 50 percent rise. Anthem is ranked fifth, while Kaiser Foundation Group of Health Plans is ranked sixth.