Josh Kushner is an American billionaire investor and entrepreneur whose family history stretches back to Jewish communities in Eastern Europe. Best known as the founder and managing partner of Thrive Capital and as a co-founder of Oscar Health, Kushner has built a prominent career in American business.
Alongside his professional achievements, his family background has attracted attention because of its deep Jewish heritage. Kushner is of Ashkenazi Jewish ancestry, with family roots connected to Belarus and Poland. His parents, Charles Kushner and Seryl Stadtmauer, were raised in Orthodox Jewish households, and Josh grew up in a Jewish community in Livingston, New Jersey.
His family’s story also includes survival during one of the darkest periods of European history.
Jewish Heritage
Josh Kushner’s ethnic background is Ashkenazi Jewish.
Ashkenazi Jews historically trace their ancestry to Jewish communities that developed across Central and Eastern Europe, particularly in areas that today include Poland, Belarus, Ukraine, Germany and surrounding regions.
Kushner’s family history reflects that broader migration story. His grandparents were Jewish survivors of the Holocaust who eventually made their way to the United States after World War II.
Their journey from Europe to America became part of the foundation of the family that later established itself in the United States.
Eastern European Roots
The Kushner family’s ancestry is connected to Belarus and Poland.
Before and during World War II, Jewish communities throughout Eastern Europe faced persecution, displacement and mass murder under Nazi Germany and its collaborators. Millions of European Jews were killed during the Holocaust.
Kushner’s grandparents survived that period and eventually immigrated to the United States.
Their experience represents the story of many Jewish families whose lives were permanently changed by the Holocaust and the subsequent movement of survivors to countries including the United States.
Holocaust Survivors
The Holocaust is an important part of Kushner’s family history.
His maternal and paternal grandparents have been described as Holocaust survivors. Their survival allowed subsequent generations of the family to be born and raised in America.
After the war, they left Europe and established new lives in the United States.
For families with this history, immigration was often about more than seeking economic opportunity. It was also about rebuilding after the destruction of homes, communities and family networks.
The Kushner family’s later success in America therefore followed a dramatically different chapter in their European history.
His Parents
Josh Kushner is the son of real estate developer Charles Kushner and Seryl Stadtmauer.
Both parents came from Orthodox Jewish backgrounds.
Charles Kushner eventually became a major figure in American real estate, building a substantial business and raising his family in New Jersey.
Seryl Stadtmauer also came from a Jewish family with Eastern European roots.
Their backgrounds helped establish the religious and cultural environment in which Josh and his siblings were raised.
Livingston Upbringing
Josh Kushner grew up in Livingston, New Jersey, alongside his siblings, including his older brother Jared Kushner.
The family maintained ties to a conservative and observant Jewish community.
Growing up in this environment meant that Jewish traditions and family heritage were an important part of the household.
The Kushner children were raised with an awareness of their family’s religious background and the experiences of earlier generations.
That upbringing became one element of Josh Kushner’s broader personal identity, even though his adult career has largely focused on technology, investing and entrepreneurship.
The Kushner Siblings
Josh is particularly well known because of his relationship to his older brother Jared Kushner.
Jared became a real estate executive and later gained international attention through his political career and role as a senior adviser in the Trump administration.
Josh followed a different route.
Rather than entering government, he established himself in venture capital and technology. He founded Thrive Capital and became involved in the creation of Oscar Health.
Despite their different professional paths, both brothers share the same family heritage and upbringing.
American Identity
Although Kushner’s ancestry is rooted in Eastern Europe, his nationality is American.
He was born in Livingston, New Jersey, and built his career in the United States.
This combination of American identity and Eastern European Jewish ancestry reflects the experience of many families whose ancestors immigrated to America during the 20th century.
For the Kushner family, the United States became the place where later generations established their education, careers and businesses.
From Heritage to Business
Kushner’s ethnic background is separate from his professional achievements, but understanding his family history provides additional context to his biography.
He went on to study at Harvard University before entering the world of entrepreneurship and investment.
Through Thrive Capital, he became an important investor in technology companies, while Oscar Health gave him a direct role in the American healthcare industry.
His career has consequently been shaped by modern American business rather than by the occupations of earlier generations.
A Family Story of Survival
The history behind Kushner’s Ashkenazi Jewish heritage extends beyond genealogy.
His grandparents’ survival of the Holocaust and their decision to rebuild their lives in America form a significant part of the family’s story.
Their descendants grew up in a country far removed from the Europe their grandparents had known.
Josh Kushner’s career and financial success represent a later chapter in that multigenerational journey, although his achievements should be understood separately from the hardships experienced by previous generations.
Josh Kushner’s ethnicity is Ashkenazi Jewish, while his nationality is American.
His family history connects him to Jewish communities in Belarus and Poland, and his grandparents’ survival of the Holocaust preceded their immigration to the United States. His parents were raised in Orthodox Jewish households, and Josh grew up within an observant Jewish environment in New Jersey.
Today, Kushner is primarily known for his work in venture capital, technology and healthcare. Yet behind that modern business profile is a family history shaped by migration, religious tradition and survival.
