Prominent international figures have contributed to the Carré Bleu and various projects presented and discussed in the CB were then realized: for example, the Freie Universität Berlin (Candilis, Josic, Woods); the university buildings in Urbino (by Giancarlo De Carlo); the Linear Centre, Rotterdam (Jacob B. Bakema); the Città della Scienza in Naples (Pica Ciamarra Associati).
On the occasion of the exhibition "Team X 1953-1981" at the Centre Pompidou (24 September 2005 – 8 January 2006) and the "Utopia of the Present" one at the Netherlands Architecture Institute (NAI), Rotterdam, an overhaul of the Carré Bleu became necessary.
In 2012, the "Cité de l'Architecture et du Patrimoine", Paris, in cooperation with the "Grande Bibliothèque Nationale François Mitterrand", supervised the digitalization of the whole collection of Carré Blue, starting from n. 0/1958 (available on the Internet and, from 2013, also on www.lecarrebleu.eu texts constantly updated).
From 20 December 2013, the MAMT (Museum of Mediterranean Art, Music and Traditions in Naples, piazza del Municipio) dedicates a permanent space to the Carré Bleu, with a presentation of videos and photos.
Collaborators: Argentina: G. Cluzellas; Denmark: Arne Jacobsen; France: Roger Aujaume; Italy: Giancarlo De Carlo; Morocco: Elie Azagury; Norway: Sverre Fehn; Sweden: Sven Ivar Lind.