She is the co-founder with Roy Sebag and Chief Artistic Officer of a jewelry company called Menē launched in 2017.

[9] Since May 2023, she is part of the board of directors of ARTEX, world’s first and only blockchain based artpiece exchange platform.

In 2003, Diana Widmaier Picasso created a research company called DWP Editions and started gathering information on her grandfather’s works.

[10][11] Since 2013, she is working on a catalogue raisonné of Picasso’s sculptures with a team of researchers (Olivia Speer and Claire Rougé).

[12][13] This catalogue will present over 2000 three-dimensional works including materials like plaster, bronze, wood, terra-cotta, cardboard and paper.