Adam Weissenberg

Board Member

Adam has had a distinguished career spanning more than four decades at Deloitte, where he served as Vice Chair of the U.S. Audit & Assurance business and as Asia Pacific Leader in the U.S. Global Office. A CPA and qualified financial expert in both U.S. GAAP and IFRS, he advised Fortune 500 companies in the travel, hospitality, and real estate sectors, leading complex mergers and acquisitions, full-cycle initial public offerings, and multinational public company audits as Lead Client Service Partner. He also built and scaled Deloitte’s Travel, Hospitality and Services practice from approximately $100 million to roughly $2 billion in revenue.

In his global leadership roles, Adam aligned strategy across more than nine geographies and helped guide the firm through the COVID-19 pandemic and its largest enterprise transformation. He brings deep experience navigating high-stakes situations, including restructurings and bankruptcies, and is known for clarifying trade-offs and improving alignment between boards and management.

Adam previously served as a Board Member and Chair of the Finance & Audit Committee of Deloitte US, as a Board Observer for Deloitte Asia Pacific, and as a member of Deloitte Global’s CEO Nominating Committee. He served for more than a decade as a Board Member and Audit Committee Chair of UJA-Federation of New York, and has also served on the boards of Japan Society and Cancer Hope Network, where he was previously Chair and CEO. Throughout his career, he has brought extensive experience in governance, financial reporting, and risk and technology oversight.

Adam earned his MBA in accounting and finance from Columbia University and his BS in hotel and restaurant administration from Cornell University. Based in the New York area, he brings to HFLS both a grounding in financial oversight and a long record of service to New York’s Jewish communal institutions, and remains committed to organizations that strengthen the economic well-being and resilience of local communities.