Past CTBUH Chairmen

Steve Watts
2017 – 2023

Steve Watts

Partner, Turner & Townsend alinea

London, United Kingdom

David Malott
2014 – 2017

David Malott

Co-Founder/Executive Director, AI PlanetWorks

New York City, United States

Timothy Johnson
2011 – 2014

Timothy Johnson

Partner, NBBJ

New York City, United States

Sang-Dae Kim
2009 – 2011

Sang-Dae Kim

Emeritus Professor, Korea University

Seoul, South Korea

David Scott
2006 – 2009

David Scott

Engineering Director, Laing O'Rourke

London, United Kingdom

Ron Klemencic
2001 – 2006

Ron Klemencic

Chairman & CEO, Magnusson Klemencic Associates

Seattle, United States

Shankar Nair
1997 – 2001

Shankar Nair

Chicago, United States

Gilberto do Valle
1993 – 1996

Gilberto do Valle

Rio de Janeiro, Brazil

Ignacio Martin
1990 – 1993

Ignacio Martin

San Juan, Puerto Rico

Leslie E. Robertson
1985 – 1990

Leslie E. Robertson

Director; Founder, See Robertson Structural Engineers, LLC

San Francisco, United States

John Rankine
1982 – 1985

John Rankine

Sydney, Australia

Fazlur Khan
1979 – 1982

Fazlur Khan

Chicago, United States

Duiliu Sfintesco
1976 – 1979

Duiliu Sfintesco

Paris, France

Lynn Beedle
1969 – 1976

Lynn Beedle

Bethlehem, United States