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About this guide

Public report of the workgroup – year 2024

Best practices for evaluating and influencing the maturity of its stakeholders in Sustainable IT.

Institutes for Sustainable IT – INR / ISIT

Design & writing

  • Institut du Numérique Responsable (INR).
  • European Institutes for Sustainable IT (ISIT).

Reviewed by

  • AGIT – Romuald Ribault.
  • ADEME – Thomas De Latour.
  • Boavizta – Eric Fourboul.
  • Green IO – Gaël Duez.
  • CIGREF – Flora Fischer, Christophe Boulaire.
  • Sustainableit.org – Rainer Karcher (CSO).
  • ICT4S and Bristol University – Pr Chris Preist.
  • Sopra Steria – Jonathan Matthews.

Workgroup under the direction of

  • RTE – Boris Dolley.
  • Sopra Steria – Emmanuel Laroche.

Bilingual open-source edition (version 1.2)

  • Institut du Numérique Responsable – Vincent Courboulay, Guillaume Gallon.

Contributors to the French workgroup

  • AGIT / Ecologic: Romuald Ribault.
  • APL: Pénélope Guy, Sofia Benqassem.
  • Avanka: Olivier Bieber.
  • Région Nouvelle-Aquitaine: Anne-Cécile Petit.
  • Banque Postale: Agnès Bonvarlet, Felanirina Ratsiambahotra.
  • Bilbea: Eloise Bailleux.
  • Région Bretagne: Hervé Leluherne.
  • Capgemini: Caroline Vateau, Alison Montesinos, Laure Mercier.
  • CGI: Clément Lucas.
  • Colombus Consulting: David Robin, Nabil El Fodil.
  • Crédit Agricole: Gwladys Mampouya, Fabien Métivet.
  • Crédit Mutuel / ARKEA: Corinne Paillet.
  • Digital 4 better: Alizée Colin, Ariane Molet.
  • ES: Dima Hajiara.
  • Hara Consulting: Christine Gérardin.
  • Infogreen Factory: Cédric Gravouil, Karine Maj.
  • IJO: Lorena Nava-Guajardo, Guilhem De-Clerck.
  • MC2I: Alice Pottiee Sperri, Feriel Bessad, Ceyhan Dalkillic.
  • Ministère de la Culture: Myriam Fleuret.
  • MIPIH: Nathalie Begue.
  • Nuageo: Antoine Defaix, Clément Marche.
  • Société Générale: Isabelle Berrien, Jennifer Zaragoza.
  • Philippe Derouette (Founder of the INR-ISIT).
  • Sopra Steria: Isaline Medcalf.
  • Sustainably: Emilie Proyart.
  • Syneor: Fabrice Van Hoed.
  • Tessi: Estelle Tirmarche.

Contributors to the European workgroup

  • Airbus: Laurie Servais.
  • ISIT-BE: Sara Michielsen, Jules Delcon, Olivier Vergeynst.
  • Belfius: Willy Vyncke.
  • Degroof Petercam: F. Delperdange.
  • Euroclear: Camila Santos De Matos.
  • ING: Thierry Parmentier, Johan Smessaert.

Heartfelt thanks: we warmly thank each of the reviewers for their contributions to this delivery.

Change log

Version Changes
1.0 (December 2024) First publication (English).
1.1 (3 January 2025) Minor corrections (spelling and typography); proposed weighting of chapters 5 and 6 changed to reach 100 points.
1.2 (October 2026) French translation reviewed and completed; bilingual Markdown edition open to contributions; English version aligned on the 1.1 weightings.

Return of experience is foreseen one year after publication to integrate feedback and improvements in a continuous improvement approach. Proposals are now handled through the guide's GitHub repository.

This guide is available at: https://institutnr.org/guide-maturite-parties-prenantes