George Siedel completed graduate studies at the University of Michigan and Cambridge University. Following graduation, he worked as an attorney in a professional corporation. Professor Siedel has been admitted to practice before the United States Supreme Court and in Michigan, Ohio, and Florida. He has also served on several boards of directors and as Associate Dean of the Ross School of Business at the University of Michigan.

Professor Siedel served as a Visiting Professor at Stanford University and Harvard University, a Visiting Scholar at Berkeley, and a Parsons Fellow at the University of Sydney. He has been elected a Visiting Fellow at Cambridge University's Wolfson College and a Life Fellow of the Michigan State Bar Foundation. As a Fulbright Scholar, he held a Distinguished Chair in the Humanities and Social Sciences.

The author of numerous books and articles, Professor Siedel is the recipient of research awards from the University of Michigan (the Faculty Recognition Award) and the Academy of Legal Studies in Business (the Hoeber Award, the Ralph Bunche Award and the Maurer Award). The Center for International Business Education and Research selected a case written by Professor Siedel for its annual International Case Writing Award.