Andersen Group Inc. (NYSE:ANDG), a provider of independent tax, valuation, and financial advisory services to individuals and family offices, businesses, and funds in the United States, today announced the appointment of Sue Decker to its Board of Directors.

Decker brings more than four decades of experience across financial services and technology, as well as extensive public company board leadership to Andersen at a time of accelerating growth and strategic expansion. Her background reflects a combination of operating experience, capital markets insight, and governance across a range of industries, including media, technology, and consumer businesses.

"Sue's appointment reflects our ongoing focus on maintaining a highly capable and engaged Board as Andersen continues to grow," said Mark Vorsatz, Chairman of the Board, and Global Chairman and CEO of Andersen. "Her perspective across capital markets and technology, together with her depth of board experience, will be a valuable complement to the Board. We look forward to working with her as we continue to build the firm over the long term."

"I'm pleased to join the Board of Andersen Group Inc.," said Decker. "Andersen has established a strong reputation for client service and a clear strategic direction. I look forward to working with the Board and management team to support the firm's continued development."

Decker began her career in 1986 at Donaldson, Lufkin & Jenrette, where she spent nearly fourteen years covering technology and advertising equities. In 2000, she joined Yahoo as Chief Financial Officer and later served as Executive Vice President of the Advertiser and Publisher Group and as President.

Following her time at Yahoo, Decker served as an Entrepreneur in Residence at Harvard Business School, where she worked with students and early-stage companies through the Rock Center for Entrepreneurship. In 2021, she founded Raftr, a platform focused on building community across college campuses and other organizations.

She currently serves on the boards of Berkshire Hathaway, Chime, Costco Wholesale, Vail Resorts, and a number of privately-held companies.

Decker holds an MBA from Harvard Business School and a Bachelor of Science in Computer Science from Tufts University.

Her appointment underscores Andersen's commitment to strengthening its governance with proven leaders who bring strategic insight and a forward-looking perspective on technology-enabled growth.

About Andersen

Andersen is a leading provider of independent tax, valuation and financial advisory services to individuals, family offices, businesses and alternative investment funds in the United States. Andersen's differentiated approach to client service is rooted in core values that emphasize stewardship, transparency and the seamless delivery of independent, high-quality service. Worldwide, Andersen's presence spans more than 180 countries through its global platform of member and collaborating firms delivering tax, legal, valuation and consulting services across more than 1,000 locations with over 3,000 partners and 50,000 professionals.

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Gregory Vistica, Managing Director, Investor Relations

greg.vistica@andersen.com

Andersen Appoints Susan (Sue) Decker to Board of Directors