The Music Department of the National Library of France is, since 1980, the principal depositary of the Nadia Boulanger collection. Are assembled: musical manuscripts by Lili Boulanger, Nadia Boulanger, Ernest Boulanger, original editions of their works, corrected proofs, autograph letters and writings. The Audiovisuel Department of the National Library of France assembles recordings having belonged to Nadia Boulanger: seventy eight RPM's, thirty three RPM's and tapes.
The Nadia Boulanger Media-Library of the Conservatoire national supérieur de musique et de danse de Lyon bears the name of Nadia Boulanger following the donation which was made, in 1980, of the great musician’s personal library.
The Musée de la Musique à Paris is, since 1981, owner after donation of the objects, the furniture, the musical instruments, the art works, the books and the scores constituting the complete contents of Nadia Boulanger's two music salons, located in the apartment, where had lived since 1904, at 36 rue Ballu in the 9th district of Paris.
When still alive, Nadia Boulanger has been willing to archive all the manuscripts offered by her American at the Library of Harvard University, Cambridge, Mass.: stored at the Isham Memorial Library, specialised library part of the Eda Kuhn Loeb Music Library, the collection holds about 900 manuscripts, often together with notes or thank-you letters.
In 1986, the UFDA (Union française des arts décoratifs, whose collections are now gathered at the Musée des Arts Décoratifs within the Musée de la Mode et du Textile) received in donation the Lanvin dresses and suits which belonged to Nadia Boulanger.
The American Music Research Center of Colorado University (Boulder) organised in October 2004, the first International Symposium on the topic of the influence of Nadia Boulanger on the development of the American music.
Nadia Boulanger was associated right from the start, in 1921, with the international activity of the American Conservatory in Fontainebleau where she taught every summer – as a professor and as the director – until the year of her death in 1979. Master Classes and concerts were organised there for a multitude of American students coming to study with the great “Mademoiselle”.
The Francis and Mica Salabert Foundation was founded in 1981 with the aim to defend the French and universal musical inheritance as much as the musical creation. Since 2009, it funds a commissioned song imposed for the final round of the Nadia and Lili Boulanger International Voice-Piano Competition. Thierry Lancino has been commissioned a song for 2011 and Jean-Christophe Marti in 2009.
 Lili Boulanger’s works (orchestral works, vocal and instrumental music, chamber music) are published by Durand since 1920. They are available commercially, by sale or by rental. Six Songs of Nadia Boulanger are published by Ricordi Milan, today part of the same group.
The Alphonse Leduc musical editions, owners of the Hamelle collection, propose now many works by Nadia Boulanger : Trois petites pièces for piano, Mélodies for medium voice and piano (volumes 1 and 2), Trois pièces for cello and piano, Trois pièces for viola and piano (transcription from the previous), and Cantique (Lux æterna) for medium voice, violin, cello, harp and organ. As for the cycle of melodies by Nadia Boulanger and Raoul Pugno, Les Heures claires, it is published by Heugel, also in the Leduc catalog..
The Aaron Copland collection of the Library of Congress in Washington holds the letters written by Nadia Boulanger to her student Aaron Copland.
The Musical Academy of Villecroze exists since 1989, thanks to the initiative of Anne Gruner-Schlumberger. The Academy encourages the development of talented young musicians and for this reason offers the Piano Prize of the Nadia and Lili Boulanger International Voice-Piano Competition, since it creation in 2001. The Villecroze music Academy also supported the publication of a book on Nadia and Lili Boulanger, resulting from a conference co-organized with the Nadia and Lili Boulanger Foundation. [Couverture du livre en pop up]