Mark Attanasio Wife
Meet Deborah Attanasio formerly known as Deborah Kaplan, the wife of Mark Attanasio, the owner of the Milwaukee Brewers!
Born in the Bronx, New York, to Italian immigrant parents, Mark Attanasio has built a successful career in business and sports. He is also the brother of Paul Attanasio, an accomplished screenwriter and producer, and the father of actress Anabelle Attanasio.
In addition to owning the Milwaukee Brewers, Attanasio is the majority owner of Norwich City FC, the English soccer club that competes in the EFL Championship.
Deborah Attanasio
Mark Attanasio is best known as the chairman and principal owner of the Milwaukee Brewers, but away from the baseball diamond, the successful businessman shares his life with his wife, Deborah Kaplan, and their two sons, Dan and Mike.
While Attanasio has built a prominent career in investment management and professional sports, Deborah has established her own identity through charitable work and community involvement. The couple has also supported several organizations focused on education, health and the arts.
Here is everything to know about Deborah Kaplan, her family with Mark Attanasio, and the business success behind the Brewers owner’s estimated billion-dollar fortune.
Who Is Mark Attanasio’s Wife, Deborah Attanasio?
Deborah Kaplan, also known as Debbie Attanasio, is the wife of Milwaukee Brewers owner Mark Attanasio. Although she generally maintains a private life, her charitable activities and involvement in the Jewish community have offered glimpses into her interests outside her husband’s high-profile career.
According to a profile published by the Wisconsin Jewish Chronicle in August 2011, Debbie grew up in a Conservative Jewish household. Deborah Attanasio, née Kaplan, is the daughter of Barbara and Martin Kaplan. Born on July 1, 1953, in Long Island, New York.
Debbie and Mark Attanasio first met as teenagers. They grew up in the same neighborhood and attended the same schools, but eventually went their separate ways when Debbie left to attend Harvard University. She later studied at New York University School of Law.
Debbie and Mark tied the knot in 1986 in Manhattan, New York. Together, they have two sons: Daniel, born in 1987, and Michael, born in 1991.
Beyond her family life, Debbie Attanasio has been actively involved in charitable work. She has supported SOVA, the Community Food and Resource Program operated by Jewish Family Service of Los Angeles, as well as the Susan S. Pritzker Series of the Women’s Division of the Jewish Federation of Greater Los Angeles.
In 2007, Debbie received the Philanthropist of the Year Award from the Professional Sports Wives Association. A decade later, in 2017, she hosted the Milwaukee Jewish Federation Women’s Division Lion of Judah/Pomegranate event, further demonstrating her commitment to community service.
She became actively involved in the Jewish community in Los Angeles, where Mark’s investment management business was based.
Her community work included supporting the Susan S. Pritzker Series of the Women’s Division of the Jewish Federation of Greater Los Angeles. She also worked with SOVA, a food and resource assistance program operated by Jewish Family Service of Los Angeles.
As the Attanasios strengthened their ties to Milwaukee, Deborah Attanasio expressed an interest in becoming more involved in the city’s Jewish community. The couple’s philanthropic efforts have extended beyond their religious community, reflecting a broader commitment to charitable causes.
In 2006, Mark and Debbie received the Courage to Care Award from Children’s Hospital Los Angeles. Three years later, COA Youth & Family Centers in Milwaukee recognized them with its Parents of the Year Award. Debbie also received the Professional Sports Wives Association’s Philanthropist of the Year Award in 2007.
These honors highlight a side of the Attanasio family that extends beyond baseball and business, with community service remaining an important part of their public story.
Mark and Deborah Attanasio’s Children
Mark and Debbie Attanasio have two sons, Dan and Mike, and the family has gradually developed closer ties to the Milwaukee Brewers through Mark’s ownership of the franchise.
Dan Attanasio
Dan is the elder of the couple’s two sons. Although he has largely stayed out of the public spotlight, an earlier report noted his involvement in music. His band, Pan Am, performed at Summerfest in Milwaukee in 2008.
Dan has also become part of the next generation of the Attanasio family, which has developed a lasting connection to the Brewers organization. Dan married his longtime girlfriend Elizabeth Metzger; the couple welcomed a son in 2017.
Mike Attanasio
Mike is Mark and Debbie’s younger son. He was a teenager when his father purchased the Milwaukee Brewers, giving him a firsthand look at how the family’s life changed after entering professional sports ownership.
Mike Attanasio, the younger son of Milwaukee Brewers owner Mark Attanasio and his wife, Deborah, followed an academic path at the Massachusetts Institute of Technology (MIT), where he studied from 2010 to 2014. During his time at MIT, he participated in the men’s basketball team, the MIT Entrepreneurship Center, and Lambda Chi Alpha.
Mike went on to build a career with the Milwaukee Brewers, working in business strategy and fan engagement. His professional experience has included identifying opportunities to incorporate new technologies into baseball operations and improving the fan experience both at the ballpark and through digital platforms.
In an October 2026 report, MLB recalled Mike’s memories of learning about his father’s purchase of the franchise. He also spoke about growing up around the team and witnessing its development over the years.
Both Dan and Mike have families of their own, making Mark and Debbie grandparents. Mike married Arielle in January 2022; Ari Attanasio graduated from Southern Methodist University in Dallas, TX. is nowadays a realtor with Sotheby’s.
Who Is Mark Attanasio?
Mark Attanasio is an American businessman, investment manager and sports executive who serves as chairman and principal owner of the Milwaukee Brewers.
Born in the Bronx, New York, on September 29, 1957, Attanasio developed a career that combined corporate law, investment banking and credit investing before he entered Major League Baseball ownership.
He graduated from Brown University before earning his law degree from Columbia University School of Law. Rather than pursuing a traditional legal career indefinitely, Attanasio moved into investment banking during the 1980s, gaining experience in the financial markets that would later play a central role in his success.
Today, he is also a managing partner and co-founder of Crescent Capital Group, a Los Angeles-based investment management firm. Beyond baseball, he is the majority shareholder of Norwich City FC, the English soccer club that competes in the EFL Championship.
How Did Mark Attanasio Make His Fortune?
Attanasio built his fortune primarily through investment management before expanding into professional sports.
After working as an attorney, he joined Drexel Burnham Lambert, an investment bank known for its work in high-yield bonds. The experience gave him a foundation in credit markets and corporate finance.
In 1991, Attanasio co-founded Crescent Capital Group, which focused on credit and alternative investments. The firm subsequently expanded its investment strategies and became a significant player in the alternative asset management industry.
Crescent’s growth helped establish Attanasio as a successful investment executive. The firm has reported tens of billions of dollars in assets under management, although those assets belong to its funds and clients rather than to Attanasio personally.
His next major move came in professional sports. In 2004, Attanasio led an investment group that agreed to purchase the Milwaukee Brewers from the Selig family. Major League Baseball approved the transaction in January 2005, and Attanasio became the franchise’s principal owner.
The Brewers subsequently became one of the most competitive teams in the National League over the course of his tenure, making multiple postseason appearances and reaching the World Series in 2026.
Attanasio later expanded his sports portfolio to include Norwich City FC in England. He has also invested in the Milwaukee Admirals hockey team and is associated with Strategic Sports Group, an investment group that committed capital to the PGA Tour.
His financial success, therefore, stems from a combination of investment management, business ownership and sports-related investments rather than from baseball alone.
Mark Attanasio’s Net Worth in 2026
Mark Attanasio’s estimated net worth is $2 billion, according to Forbes’ real-time billionaire profile as of October 23, 2026.
His wealth is primarily attributed to his career in finance, his interests in Crescent Capital and his ownership of professional sports franchises.
Forbes has valued the Milwaukee Brewers at approximately $1.9 billion, reflecting the substantial appreciation in the franchise’s value since Attanasio’s investment group acquired the team in the mid-2000s.
However, a team’s valuation should not be confused with its owner’s personal net worth. Attanasio owns an interest in the franchise rather than receiving its entire valuation as personal wealth. Similarly, Crescent Capital’s assets under management are not equivalent to the money he personally owns.
Nevertheless, his investments in finance and sports have made him one of the wealthier owners in professional baseball.
Mark and Deborah Attanasio’s Philanthropic Work
Beyond their business interests, Mark and Debbie have supported charitable and cultural organizations in both Los Angeles and Milwaukee.
Their recognition from Children’s Hospital Los Angeles and COA Youth & Family Centers reflects their involvement in community initiatives. Mark has also supported the Milwaukee Brewers’ charitable activities through the Brewers Community Foundation, which raises money for organizations focused on health, education, recreation and basic needs.
The couple’s involvement in these causes illustrates how their public lives extend beyond the sports and financial industries.
A Family Connected by Business, Sports and Community
From Deborah Kaplan’s charitable activities to Mark Attanasio’s success in investment management and baseball ownership, the Attanasio family has established a presence in both business and community life.
While Mark remains a prominent figure in professional sports, Debbie has maintained her own philanthropic interests, and their sons, Dan and Mike, represent the next generation of a family closely connected to the Milwaukee Brewers.
Together, their story offers a look at the family behind one of Major League Baseball’s prominent ownership groups.
