I am not aware of any groups in the US that perform pantomime. However, many years ago an English group performed in RI, and I jumped at the chance to see them. I think this may have been a cultural exchange between Coventry in the UK and the city of the same name in Connecticut, and because Coventry, Rhode Island, where I lived at the time was not far away, they performed Cinderella there, too. One of the actors explained the conventions before the play started so we knew what to do, but I suppose our responses were rather tepid compared to those of a UK audience.
There is a Commedia group in the part of Massachusetts where my son lives, and one of its members lives in the cohousing where my son's family lives. Every year he gets the children in the cohousing to perform a Commedia play.
At the boy scout camp my son went to, every year the staff did an original play with some elements of both art forms. There were bits that were repeated every year and stock responses from the audience. One year my son got to play a young woman--not a Dame role. I asked how he got chosen for the part. He said his feet were the only ones that fit into the high-heeled shoes!