International Centennial Congress Committee
- Jaime Nubiola (chair)
- Shannon Dea (ex officio: secretary-treasurer, Charles S. Peirce Society)
- Nathan Houser
- Ivo Ibri
- Robert Innis
- John Kaag
- Robert Lane
- Cathy Legg
- James Liszka
- Giovanni Maddalena
- Rosa Mayorga
- Cheryl Misak
- Matthew Moore
- Ahti-Veikko Pietarinen
- Claudine Tiercelin
- Fernando Zalamea
Steering Committee
- Jaime Nubiola (chair)
- John Kaag
- Rosa Mayorga
- Matthew Moore
- Robert Lane
Fund-Raising Committee
- James Liszka (chair)
- Shannon Dea (ex officio: secretary-treasurer, Charles S. Peirce Society)
- Robert Lane (ex officio: secretary-treasurer, Charles S. Peirce Foundation)
- Cheryl Misak
- Umberto Eco
- Ivo Ibri
Local Organizing Committee
- John Kaag (co-chair)
- Robert Innis (co-chair)
Program Committee
- Matthew Moore (co-chair)
- Rosa Mayorga (co-chair)
- Mats Bergman
- Elizabeth Cooke
- Cornelis de Waal
- Shannon Dea
- Jeffrey Brian Downard
- Catherine Legg
- Giovanni Maddalena
- Mark Migotti
- Kelly Parker
- Ahti-Veikko Pietarinen
Publications Committee
- Cornelis de Waal (chair)
- Rosa Calcaterra
- Ivo Ibri
Budget Committee
- John Kaag
- Robert Lane
- Scott Pratt
Publicity Committee
- Mats Bergman (chair)
- Chiara Ambrosio
- John Kaag
- Catherine Legg
- Rosa Mayorga
- Ignacio Redondo
- Gary Richmond
- Vínicius Romanini
- Henrik Rydenfelt
- Krzysztof Skowronski
- Ben Udell
- Tullio Viola
- Emil Višňovský
- Jérôme Vogel
Honorary Committee
- Robert Almeder
- Douglas Anderson
- Richard J. Bernstein
- Joseph Brent
- Vincent Colapietro
- Cornelius F. Delaney
- André De Tienne
- Randall Dipert
- Umberto Eco
- Susan Haack
- Carl R. Hausman
- Risto Hilpinen
- Jaakko Hintikka
- Christopher J. Hookway
- Nathan Houser
- Kenneth L. Ketner
- John Lachs
- Larry Laudan
- Isaac Levi
- James Liszka
- Cheryl Misak
- Murray G. Murphey
- Jaime Nubiola
- Klaus Oehler
- Hilary Putnam
- Nicholas Rescher
- B. Gresham Riley
- Don D. Roberts
- Sandra B. Rosenthal
- Lucia Santaella
- Demetra Sfendoni-Mentzou
- Michael Shapiro
- T.L. Short
- Claudine Tiercelin