Governance & Leadership
SIAM’s Board of Trustees, Council, and other volunteer member leaders work together with our professional staff to advance SIAM’s mission.
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Charting Our Course
SIAM Board of Trustees
The SIAM Board of Trustees is responsible for the management and financial oversight of SIAM, taking into account the professional and scientific policies and objectives of SIAM. The Board has full legal and fiduciary responsibility for SIAM.
Board of Trustees
Beatrice M. Riviere, Chair
Rice University
Liliana Borcea
Columbia University
Raymond Chan
Lingnan University
Alina Chertock
North Carolina State University
Ricardo Cortez
Tulane University
Thomas A. Grandine
Boeing Company
Samuel Gubins
Annual Reviews
Jan Hesthaven
Karlsruhe Institute of Technology
Cynthia Phillips
Sandia National Laboratories
Bonita V. Saunders
National Institute of Standards & Technology
Chi-Wang Shu
Brown University
Carol Woodward
Lawrence Livermore National Laboratory
Ulrike Meier Yang
Lawrence Livermore National Laboratory
Directing Our Organization
SIAM Chief Executive Officer
The Chief Executive Officer is responsible for the administration of the affairs of SIAM, and providing leadership, management, and strategy to the organization. The CEO leads SIAM’s professional staff.
Chief Executive Officer
Suzanne L. Weekes
Society for Industrial and Applied Mathematics
Leading the Way
SIAM Officers
SIAM officers hold key leadership roles and are responsible for overseeing various aspects of SIAM's operations, goals, and objectives.
Officers
Carol Woodward, President
Lawrence Livermore National Laboratory
Sven Leyffer, Past President
Argonne National Laboratory
Xiaoye Sherry Li, Vice President-at-Large
Lawrence Berkeley National Laboratory
Karen Devine, Secretary
Sandia National Laboratories, Retired
Samuel Gubins, Treasurer
Annual Reviews
Eleanor Jenkins, Vice President for Education
Clemson University
Luis Melara, Vice President for Equity, Diversity, and Inclusion
Shippensburg University
Nessy Tania, Vice President for Industry
Pfizer Incorporated
James G. Nagy, Vice President for Programs
Emory University
Howard Elman, Vice President for Publications
University of Maryland
Alejandro Aceves, Vice President for Science Policy
Southern Methodist University
Shaping Our Policy
SIAM Council
The SIAM Council formulates the scientific policies of the organization, monitors its technical activities, proposes new activities, and recommends action to the Board of Trustees as appropriate. The Council is chaired by the SIAM President.
Council
Alejandro Aceves
Southern Methodist University
Inga Berre
University of Bergen
Elizabeth Cherry
Georgia Institute of Technology
Henry Cohn
Microsoft Corporation
Hans De Sterck
University of Waterloo
Karen Devine
Sandia National Laboratories, Retired
Alicia Dickenstein
Universidad de Buenos Aires
Howard Elman
University of Maryland
Heike Fassbender
TU Braunschweig
Samuel Gubins
Annual Reviews
Johnny Guzmán
Brown University
Judith Hill
Lawrence Livermore National Laboratory
Eleanor Jenkins
Clemson University
Sven Leyffer
Argonne National Laboratory
Xiaoye Sherry Li
Lawrence Berkeley National Laboratory
Luis Melara
Shippensburg University
James Nagy
Emory University
Evelyn Sander
George Mason University
Carola-Bibiane Schoenlieb
University of Cambridge
Valeria Simoncini
University of Bologna
Nessy Tania
Pfizer Incorporated
Andrea Walther
Humboldt-Universität zu Berlin
Carol Woodward
Lawrence Livermore National Laboratory
Building Our History
SIAM Executive Leadership
Executive Leadership
James M. Crowley
1994 - 2020
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I. Edward Block
1976 - 1994
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Dedicated to Our Mission
SIAM Presidents
The SIAM President broadly manages the professional and scientific affairs of SIAM, overseeing the SIAM Council and making appointments to committees.
Presidents
Carol Woodward
2025-2026
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Sven Leyffer
2023-2024
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Susanne C. Brenner
2021-2022
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Lisa Fauci
2019-2020
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Nicholas J. Higham
2017-2018
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Pamela Cook
2015-2016
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Irene Fonseca
2013-2014
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L. N. Trefethen
2011-2012
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Doug Arnold
2009-2010
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Cleve Moler
2007-2008
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Martin Golubitsky
2005-2006
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James (Mac) Hyman
2003-2004
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Thomas A. Manteuffel
2001-2002
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Gilbert Strang
1999-2000
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John Guckenheimer
1997-1998
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Margaret H. Wright
1995-1996
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Avner Friedman
1993-1994
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Robert E. O’Malley, Jr.
1991-1992
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Ivar Stakgold
1989-1990
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C. William Gear
1987-1988
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Gene H. Golub
1985-1986
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Hirsh Cohen
1983-1984
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Seymour Parter
1981-1982
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Richard C. DiPrima
1979-1980
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Werner Rheinboldt
1976-1978
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Herbert Keller
1974-1976
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C. C. Lin
1972-1974
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Burton Colvin
1970-1972
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J. Wallace Givens
1968-1970
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Garrett Birkhoff
1966-1968
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J. Barkley Rosser
1964-1966
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Alston Householder
1963-1964
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Joseph LaSalle
1962-1963
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Robert Rinehart
1961-1962
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F. Joachim Weyl
1960-1961
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Brockway McMillan
1959-1960
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Donald Thomsen, Jr.
1958-1959
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Thomas Southard
1956-1958
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John Mauchly
1955-1956
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Harold Kuhn
1954-1955
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Donald Houghton
1953-1954
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William Bradley
1952-1953
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Guiding Our Board
SIAM Board Chair
Board Chairs
Beatrice M. Riviere
1/1/2025 - Present
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Alison Ramage
1/1/2023 - 12/31/2024
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Margot Gerritsen
1/1/2020 - 12/31/2022
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C. Tim Kelley
1/1/2012- 12/31/2019
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Iain Duff
1/1/2006 - 12/31/2011
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Michael Overton
1/1/2004 - 12/31/2005
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Max Gunzburger
1/1/2003 - 12/31/2003
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H. Thomas Banks
1/1/1999 - 12/31/2002
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Joyce McLaughlin
1/1/1996 - 12/31/1998
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John Hopcroft
1/1/1992 - 12/31/1995
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James McKenna
1/1/1990 - 12/31/1991
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Werner C. Rheinboldt
1/1/1985 - 12/31/1989
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Ivar Stakgold
1/1/1980 - 12/31/1985
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Maxine L. Rockoff
1/1/1978 - 12/31/1979
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Brockway McMillan
1/1/1976 - 12/31/1977
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Board Chairs from 1957-1975
I. Ed Block
Past Board Chair
Donald L. Thomsen
Past Board Chair
Herbert Gurk
Past Board Chair
R.F. Rinehart
Past Board Chair
Donald B. Houghton
Past Board Chair
Joseph LaSalle
Past Board Chair
John Sterrett
Past Board Chair
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