1989-90 Consulting Editor for Mathematics, The Guinness Encyclopedia
1990-98 Editor, with P. Borwein, CMS-Wiley Series of Monographs and Advanced Texts s 1992-2008 Associate Editor, Set-Valued Analysis, Kluwer Academic Publishers
1992-94 Area Editor, Dictionary of Theories (Gale Research, June 1993; ISBN: 1873477058)
1993- Editorial Board, Journal of Convex Analysis, Heldermann-Verlag
1994-2007 Associate Editor, ZOR: Mathematical Methods of Operations Research
1994- Editorial Board, Honorary Editor, Communications in Applied Nonlinear Analysis
1995- Editorial Board, Ramanujan Journal
1996- Editorial Board, Experimental Mathematics
1997 Co-Editor, MapleTech, 4,1997, Special Issue on Maple in the Mathematical Sciences.
1997- Editorial Board, Mathematical Inequalities and Applications (MIA)
1998-2004 Editor, with P. Borwein, Springer-Verlag Canadian Mathematical Society Books in Mathematics
1998-2008 Editorial Board, International Journal of Mathematics and Mathematical Sciences
1998- Editorial Board, International Journal of Nonlinear and Convex Analysis
1998-2007 Editorial Board, Proceedings of the American Mathematical Society
1999- Editorial Board, SIAM Problems and
Solutions
(Electronic:
http://www.siam.org/journals/problems/)
1999- Editorial Board, Journal of Inequalities in Pure and Applied Mathematics (Electronic: http://jipam.vu.edu.au/)
2003- Editorial Board, Fixed Point Theory and Applications
2004-2006 Editor, with P. Kenderov, S. Simon, Journal of Convex Analysis, gatrick Memorial issues 13 nos. 3/4, June 2006.
2005-2006 Editor, with K. Dilcher, Springer-Verlag Canadian Mathematical Society Books in Mathematics
2005- Editorial Board, Atlantic Electronic Journal of Mathematics (aejm)
2006- Series Editor, with H. Holden and V. Moll (since 2014), Springer Undergraduate Series in Mathematics and Technology.
2006- Member, International Council of the Comptes rendus de l'Academie bulgare des sciences.
2008- Associate Editor, Set-Valued and Variational Analysis: Theory and Applications, Kluwer Academic Publishers
2008- Editorial Board, Monographs in Number Theory, World Scientific Publishing Co.
2009- Editorial Board, ANZIAM Journal.
2010- Advisory Board, Gazette of the Australian Mathematical Society.
2010-2015 Editorial Board, Notices of the Amer. Math. Soc.
2010-2012 Editorial Board, Annals of Functional Analysis (ATA).
2010- Editorial Board, Fixed Point Theory and Related Topics (FPTT).
2011-2015 Editorial Board, American Mathematical Monthly.
2011 Editorial Advisory Board, London Mathematical Society http://www.lms.ac.uk/publications/periodicals.html. (Forced to resign by an ego-driven publisher!)
2011- Editorial Board, Journal of Optimization Theory and Applications.
2011- Regular contributor to the Conversation http://theconversation.edu.au/profiles/jon-borwein-101.
2012- Invited blogger for the the Huffington Post
http://www.huffingtonpost.com/jonathan-m-borwein/.
June 2012 - June 2019 Co-editor in chief with George Willis, Journal of the Australian Mathematical Society.
Nov 2015 - Editorial Board, SIAM J. Optimization.
2016- Editorial Board, Pure and Applied Functional Analysis, see http://www.ybook.co.jp/pafa/FLASH/index.html.