Masson was a French publisher specialised in medical and scientific collections. In 1987, Masson purchased Armand Colin. In turn, it became part of the City Group (Groupe de la Cité) in 1994. In 2000, Groupe de la Cité became part of Vivendi Universal Publishing (VUP). VUP sold its medical and trade publishing to a group led by Cinven in 2002, who formed MediMedia. In 2005, MediMedia sold its European and U.S. Netter professional medical publishing businesses to Reed Elsevier. Masson merged with Elsevier France, creating Elsevier Masson.
- In 1962, Masson published a French language translation of a book about a fictitious order called the Rhinogradentia written by the German zoology professor Gerolf Steiner.
- In 2000, in association with the language software company Ultralingua, the Masson French-English Medical Dictionary was published in electronic form for the Macintosh and Microsoft Windows computer platforms.
- Chinwala, Yasmine. "Cinven closes Vivendi business publishing deal for €1.2bn". Retrieved 2018-04-28.
- "Reed Elsevier agrees to acquire MediMedia MAP". Retrieved 2018-04-28.