In 2002, the British newspaper Independent on Sunday included him in their list of the ten leading graphic designers in the UK.
He joined Pentagram in 1989 and worked with Alan Fletcher on design programmes for Scandinavian Airlines, The Travelstead Group, The Barbican Centre, Shakespeare's Globe and information graphics for Stansted Airport.
Clients include British loudspeaker manufacturer Bowers & Wilkins, Canadian electronics firm Classé, Hotel Arts Barcelona, Meoclinic in Berlin, Tate Modern and Tate Britain, The British Museum, the National Portrait Gallery, accountancy firm Deloitte, Vitsœ, and International Design Center Berlin.
[12] In 1994 he was appointed Visiting Professor for Corporate Identity at the Fachhochschule Potsdam and was elected a Fellow of the Chartered Society of Designers.
[17] A second book titled Thomas Manss & Company written by Conway Lloyd Morgan was published by av edition in 2008.