It had accounts with Elizabeth Arden, Keiller's marmalade, Shell-Mex & BP, Speedwriting, Crosse & Blackwell, Harper's Bazaar, Imperial Airways, Indian Trans-Continental Airways, Lewis Berger Paints, Toblerone and Qantas.
[citation needed] Marcus Brumwell joined the firm in the early 1920s and became Managing Director when Menzies retired.
Two other influential figures in the organisation in the late 1930s were D Lewis and the typographer/copywriter Robert Harling.
While Menzies was an exceptional copywriter, Brumwell played a key role in liaising with leading contemporary artists of the time: Edward Bawden, Ben Nicholson, Edward McKnight Kauffer and Barbara Hepworth.
Stuart Advertising Agency is featured in the book Bright Ties Bold Ideas - Marcus Brumwell, Pioneer of C20 Advertising, Champion of the Artists by Joe Brumwell published in 2010 and entertaining a la carte by Mainstone Press, 2007.