[1] In 1939, he joined the Grey Advertising Agency (founded by Lawrence Valenstein and Arthur C. Fatt) and as an account executive.
[1] Grey differentiated itself from its competitors by using a team approach to advertising that closely worked with its customers and conducted extensive marketing research.
[2] In 1966, Grey became one of the top 10 agencies in the U.S.[2] In 1967, Strauss was named CEO and chairman; and Edward H. Meyer, president.
[1][2] In 1969, Grey won the Kraft General Foods' Post cereal account and sales reached $230 million.
[5] In the 1970s, Grey was responsible for several popular ad campaigns including "Star Wars" toys for Kenner, aspirin and toothpaste for SmithKline, and Stove Top Stuffing for Kraft General Foods.