George Nelson was an American industrial designer. While lead designer for the Herman Miller furniture company, Nelson and his design studio, George Nelson Associates, designed 20th-century modernist furniture. He is considered a founder of American modernist design.

Irving Harper was an American industrial designer. While working for George Nelson Associates, Inc. on designs for Herman Miller furniture, Harper became one of the most prolific designers of the modernist style. Among his important designs is the Herman Miller company logo, and the company's Marshmallow sofa.