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New York Knicks superstar Jalen Brunson, along with his family, announced on Tuesday the launch of Thirty Third Management Group, a family-owned brand advisory firm that will manage his off-court business as well as represent clients across pro sports, business and philanthropy.
It’s been quite the year for Brunson, as he was the leader of a Knicks team that broke a 53-year NBA title drought, and he won NBA Finals MVP in the process. The “King of New York” moniker has followed him ever since, with the Knicks faithful forever indebted to him and his teammates for the pure joy they brought the city.
But if Brunson wasn’t a star already on the hardwood, winning the NBA title in New York vaulted him into a different stratosphere, and business opportunities and more were sure to follow.
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Now, with his own firm and his family’s back, Brunson is not only helping himself but looking forward to doing the same for others with their business development, charitable work and more.
“My family has been with me every step of the way, and everything we do is rooted in trust,” he said in a statement. “Thirty Third gives us the chance to take ownership of my off-court business, to build something that reflects who we are, and to do it together.”
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The firm’s name comes from the beginning of Brunson’s career, where the Dallas Mavericks selected him 33rd overall out of Villanova in the 2018 NBA Draft. He has since built a reputation defined as much by his character and leadership as by what he has accomplished on the court.
Sandra Brunson, Jalen’s mother who has been managing his off-court business for eight years, will serve as Thirty Third Management Group president. Erica Brunson, his sister, will serve as director of client services, while Connor Cashaw, a friend and former high school teammate at Stevenson High School in Illinois, will be the director of business development. Both Erica and Connor have been a part of Jalen’s team since 2024 and 2025, respectively.”
This firm was born from a belief that the most powerful brands are built on trust, purpose, and genuine human connection,” Erica Brunson said in a statement. “As a family, we’ve had the privilege of supporting Jalen’s growth beyond basketball, and that experience inspired us to create an advisory platform that helps others do the same.
“We are committed to helping our clients maximize opportunities, whether in professional sports, business, or philanthropy, and want to be a strategic partner that champions both success and significance.”
So, while Brunson will serve as the firm’s foundational client, Thirty Third Management Group was built with the wider goal of advising athletes, NIL talent, executives, entrepreneurs and charitable foundations on brand development, partnership strategy, business development and more.
Also, a priority of the firm from the outset will be in women’s sports, a category the firm’s leadership views as “historically underserved,” with Erica leading that effort.
Meister Seelig & Schuster PLLC, led by Mitch Schuster and Jed Ferdinand, will serve as legal counsel for the firm, while Focus Financial Partners serves as financial advisors for Brunson, his family, and Thirty Third Management Group.
