McMillen Inc. is the oldest full service interior design and decorating firm in America.  McMillen Inc. was founded by Eleanor McMillen Brown in 1924.  The firm has decorated for some of the most famous Americans of the 20th century, including Henry Ford, Marshall Field, Doris Duke, and Babe Paley.  Today, McMillen Inc. is composed of nine interior designers of varied ages and expertise, a number of management assistants, and a business office.   The firm is known for providing architectural work in addition to decorating.  In 2009, McMillen added a division, McMillen Plus, which caters to younger clients.  The work of McMillen Inc. has been published in House Beautiful, The New York Times, House & Garden, Elle Décor and Architectural Digest.