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Siggi B. Wilzig’s Astonishing Journey from Auschwitz Survivor and Penniless Immigrant to Wall Street Legend

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Siggi’s Incredible Journey

Watch Siggi tell his story in his own words in this award-winning 16-minute documentary.

Reviews & Praise of Siggi B. Wilzig and Unstoppable

This book details the incredible story of Siggi Wilzig, a man who defied the odds and survived the hell of Nazi death camps and built a legacy in America. It teaches us hope and provides inspiration in times of trouble.

Dani Dayan

Consul General of Israel

Siggi was someone who would look at the Himalayan mountains and say, ‘I can climb that.’

Rodgin Cohen

Senior Chairman, Sullivan & Cromwell

Siggi understood a truth that often escapes experts in the world of finance: human nature is the greatest determinant of market trends. For someone with so little education, and no formal business background, his achievements after liberation are as breathtaking as his survival itself. A fascinating read, deeply moving and illuminating.

Nouriel Roubini

professor of economics, New York University’s Stern School of Business

This book is a wake-up call to the threat of Holocaust denial and a gripping, powerful account of one of the most successful entrepreneurs and philanthropists in America—an extraordinary life.

Harley Lippman

former chair, board of trustees, the American Jewish Congress, founder/CEO, Genesis 10

Unquestionably the most articulate and dynamic survivor I’ve ever met.

Barry Farber

legendary radio talk show host

He taught all of us that you don’t have to be a victim of circumstances. May we one day inhabit a world where more people live by his example.

Congressman Donald M. Payne

A man of courage and faith.

Elie Wiesel

Nobel Laureate

Just when we most need it, Unstoppable arrives to remind us of the resilient human spirit and its capacity to overcome the most daunting foes—a remarkable narrative, from a chapter of human history that never stops grabbing us by the throat. A timely and gripping tale for us all.

Kati Marton

ABC News

A tower of strength, a strong warrior who believed in helping people. Humanity needs men like Siggi B. Wilzig in order to stay human.

Congressman Frank J. Guarini

Siggi had the heart of a boxing champion. He took on all comers, dodged lethal blows, came back again and again, and refused to quit. You’ve got to read this story. It’s a knockout.

Yuri Foreman

World Boxing Association super welterweight titleholder (2009-10)

Unstoppable grippingly dives into the world of an Auschwitz survivor who had the strength and character to survive Auschwitz and the chutzpah to take on Texas oilmen and Wall Street bankers. Joshua Greene gives us a phenomenal read.
Stephen Robert Stein

author of The Oath

Given his lack of any formal education, Siggi’s business acumen was incredible, and his life was a testament to human endurance—heroic and unparalleled.

Marc Bell

managing partner, Marc Bell Capital

Hard work, intuition, and faith helped guide Siggi through the horrors of Auschwitz to the upper echelons of the business world. Though he never escaped the trauma of his memories, his experiences will now educate and inspire others.

Marc Leder

Co-CEO, Sun Capital

A story of struggle and triumph … his legacy will be forever remembered.

Senior Senator Robert Menendez

A powerful and moving narrative … Siggi was a towering Jew, a role model for the ages … a staggering success story and an amazing American.

Rabbi Abraham Cooper

associate dean, global director, Ed Snider Social Action Institute, Simon Wiesenthal Center

Siggi’s life story is a David and Goliath saga that reminds us what one individual can do—a unique, mesmerizing biography.

Michael Berenbaum

former president, Survivors of the Shoah Visual History Foundation, former chair, US Holocaust Memorial Museum

After his liberation from Nazi death camp Mauthausen, Siggi Wilzig worked for the US Army Counter Intelligence Corps and collected evidence, which I used to bring war criminals to justice. As a liberator of various concentration camps, and a US prosecutor at the Nuremberg Trials, I can confirm the authenticity of the horrors Siggi described. His survival and success after coming to America will be an inspiration to all readers.

Benjamin B. Ferencz

chief prosecutor, Nuremberg, Einsatzgruppen Trial

About Siggi B. Wilzig

Siggi B. Wilzig, born Siegbert Wilzig, was a survivor of the Holocaust. In 1947, Siegbert came to the U.S. at which time he legally changed his name to Siggi Bert Wilzig — “Siggi B. Wilzig.” He arrived in New York at 21, with only $240 and no education beyond grade school. Over the following fifty years, he became one of the most successful businessmen in postwar America. Siggi rose to the heights of the predominantly Protestant industries of oil and banking. The engine that drove him forward was a determination to preserve Holocaust memory.

He was a two-time Presidential appointee to the U.S. Holocaust Memorial Museum in Washington, D.C. Siggi’s life story reveals the tensions and consequences of Holocaust memory and provides a window into the psychology of those who came out of “history’s darkest hour.”

Siggi Wilzig

Meet the Author, Joshua M. Greene

Joshua M. Greene - Author

JOSHUA M. GREENE (Justice at Dachau: The Trials of an American Prosecutor) is a renowned Holocaust scholar and filmmaker whose biographies have sold more than a half-million copies worldwide. Greene is a popular lecturer who has spoken at the Pentagon and before the Judge Advocate General’s College, and his documentaries on Holocaust history have aired on PBS and Discovery. He has appeared on national media outlets from NPR’s Fresh Air with Terry Gross to FOX News, CNN, and more.

Foreword by Deborah Lipstadt

DEBORAH LIPSTADT is an American historian, best known as the author of the books Denying the Holocaust, History on Trial: My Day in Court with a Holocaust Denier, The Eichmann Trial, and Antisemitism: Here and Now. Since 1993 she has been the Dorot Professor of Modern Jewish History and Holocaust Studies at Emory University in Atlanta, Georgia, United States. Lipstadt was a consultant to the United States Holocaust Memorial Museum. In May 2022, she was named US Special Envoy to Monitor and Combat Antisemitism, in the rank of ambassador.

Deborah E. Lips


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Experience Siggi's Unbelievable True Story

From Auschwitz Survivor and Penniless Immigrant to Wall Street Legend