Petersen Auction Service is a family owned company located in Laramie, Wyoming. It all started under an old black cowboy hat in the mind of a gentleman they call – Brian Petersen. Along with his wife they have set out together to operate a company that utilizes each ones best skills. We will travel far and wide to set up an auction. Livestock, equipment, machinary, vehicles, antiques, collectibles, you name it and owner and Auctioneer, Brian Petersen, will sell it!