This list (in addition to two previous rankings of top urgent care center chains) continues to be a highly popular resource for the industry. While the urgent care market is fragmented, there are some major players that run dozens of these specialized centers. Here, we list some of the largest operators of centers in the U.S.Here
is our most recent list of large urgent care center chains.Here
is the updated list of 30 urgent care center chains, published in 2016.Here
is the original 2015 listing of 14 top urgent care centers in the U.S.