Geoffrey W. Mangum

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Geoffrey W.Mangum
Phone: 801.532.1234
Direct: 801.536.6940

Prior to joining Parsons, Mr. Mangum was an executive with American Stores Company, a Fortune 400 company, where he was primarily responsible for its mergers and acquisitions activities, including transactions with values in the hundreds of millions of dollars.  As legal counsel to the Company's treasury department, Mr. Mangum was also involved in negotiating and documenting complex financing arrangements.

Mr. Mangum has enjoyed a varied practice, He led the successful conclusion of 13 years of litigation on behalf of his client, against the Islamic Republic of Iran, arising out of Iran's seizure of the client’s Iranian subsidiary following the Ayatollah Khomeini's rise to power.  He also achieved a highly favorable outcome for a corporate director charged with murder in connection with the death of an employee in a work place setting, due to allegedly unsafe working conditions.  The case was featured on CBS News’ Sixty Minutes. Mr. Mangum also obtained a very favorable result for a senior executive of a major international company in connection with a Foreign Corrupt Practices Act investigation by the Department of Justice and the Securities Exchange Commission.

Mr. Mangum is recognized in Best Lawyers in America and maintains a top ranking in Chambers & Partners Client Guide.

Practice Areas



Georgetown University Law Center, J.D., 1979

University of Utah, B.A., 1976

Magna Cum Laude


Listed as a "Top Lawyer Named by Their Peers" and in Mountain States Super Lawyers

Recognized by Utah Business magazine as one of Utah's "Legal Elite"

Ranked as one of the Best Lawyers in America, published by Woodward/White Inc.

Maintains a top ranking by Chambers & Partners Client Guide

Maintains Martindale-Hubbell's highest rating, an AV® Preeminent™



American Bar Association

Utah Bar Association


Kingsbury Hall Presents Board of Trustees
Member and Chair
(2011 - 2017)

University of Utah World Leaders Forum Advisory Cabinet
Past Member

Utah Council for Citizen Diplomacy Board of Trustees
Past Member




Georgetown University Law Center