In order to submit Requests for Inclusion or Research Requests, please register with the Wildenstein Plattner Institute first.


The WPI catalogue raisonné projects currently focus on the following artists:

  • Paul Gauguin
  • Édouard Manet
  • Albert Marquet
  • Claude Monet
  • Camille Pissarro
  • Odilon Redon
  • Pierre-Auguste Renoir
  • Kees Van Dongen, Paintings

Please be advised:  As of September 28, 2017, the WPI will be forming a new committee to study the paintings of Kees Van Dongen.   Any painting that was issued an “Attestation” by the Wildenstein Institute will need to be reviewed by the new committee in order to determine whether it will be included in the WPI Digital Catalogue.  If you are in possession of an original letter of attestation from the Wildenstein Institute and would like the WPI to consider your work for possible inclusion in our new Digital Catalogue, we will waive our Inclusion request fee of $2000 as a courtesy to you.  Please email us directly at [email protected] for more information on how to proceed.

Other relevant works of art that were given “Attestations of Inclusion” by the Wildenstein Institute will be included in the WPI’s digital catalogue.  However, we reserve the right to reconsider any inclusion if new scholarly information becomes available.

If you are not in possession of this document from the Wildenstein Institute and you would like the WPI to consider your work for possible inclusion in one of these catalogues, you will first need to submit an online Request for Inclusion application.

Upon receipt of your application, fully-executed Submission and Consultation Agreement, and payment, the WPI will begin its research and create a dossier on the work. Once the dossier is complete, a committee of scholars will examine the work in person at an appointed time in either Paris or New York. The work must be sent unframed to the designated location prior to the scheduled meeting, insured and transported by you, your representative or a professional artwork shipping agent of your choice, and at your expense. Please note that the WPI does not seize or destroy works of art.

After the committee meeting, the WPI will send you a Decision Letter, along with any additional information that will be published on the work of art.   Decision Letters are sent via regular mail by the U.S. Postal Service.

Please note that the WPI does not certify the authenticity or make representations about the value of works of art.


The WPI can verify whether a work of art was previously recorded in its archives, which include dossiers on individual works of art related to past and ongoing catalogue raisonné projects. If you would like to know if a particular work is recorded among these dossiers, you will need to submit an online Research Request.

Please note that an archival confirmation from the WPI does not represent that the work in your possession will be included in one of the WPI’s catalogue raisonnés.

If you have a general research request that does not pertain to a specific dossier on a work of art, please contact the WPI at [email protected]. We will consider the nature of your request and present you with a proposed fee for our research services.