About John Dionisio
Born 1948. John Dionisio is an American business executive.
John M. Dionisio led AECOM (NYSE: ACM), an $8-billion global provider of professional technical and management support services, as chief executive officer from 2005 to 2011. He was chairman from 2011 to 2014, becoming executive chairman in 2014. He earned a master of science degree in civil engineering from New York University Tandon School of Engineering (then Polytechnic Institute of New York).
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Important facts
People in John Dionisio's life
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Contemporaries
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Frequently asked questions
Who is John Dionisio?
American businessman
When was John Dionisio born?
John Dionisio was born in 1948.
What is John Dionisio's occupation?
John Dionisio is a business executive.
What nationality is John Dionisio?
John Dionisio is American.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). John Dionisio. https://biography.guide/john-dionisio/
MLA: "John Dionisio." Biography.guide, https://biography.guide/john-dionisio/.
Chicago: "John Dionisio." Biography.guide. https://biography.guide/john-dionisio/.
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