News July 1, 2026 2 min read

Withum Names Eighteen New Partners

Withum 2026 New Partner Class

Eighteen team members have been promoted to partner across Withum offices nationwide, joining the Firm’s corporate leadership and contributing to its continued growth and success.

Meet Our New Partners

“We are proud to welcome this exceptional group into the Firm’s partnership. These leaders bring an expansive range of disciplines spanning services and industries, strengthening the depth and breadth of our Firm. They embody our core values, leading with a commitment to quality and integrity, and they will play a critical role in driving our continued growth and success in a rapidly evolving business environment.”

Pat Walsh

Managing Partner and Chief Executive Officer

Introducing Our 18 New Partners

Jennifer Boysen specializes in audit quality control across a range of industries, with a focus on Technology and Emerging Growth Services.

Anna Cyrier advises clients in the Life Sciences industry, from early-stage development companies to public entities.

Vincent Greenberg focuses on tax services for clients in the financial services sector.
Tim Hallenbeck specializes in the design and management of payroll audit programs for multiemployer benefit plans.
Alex Holderbaum is a Team Leader within the Theatre and Entertainment Services practice, delivering audit and accounting services.
Brian Koon focuses on serving high-net-worth individuals and co-leads the Firm’s Asian and Pacific Islander Team Members and Allies (ASPIRE) team member resource group.
Ryan Levin leads the Fitness and Wellness Services Team, with a concentration in assurance and accounting services.
Matt Magliano serves clients in the financial services industry and sits on the Rutgers University Tax Advisory Board.
Rebecca Makely leads the OASyS Services Team within the Real Estate practice and is an active member of the Firm’s Women of Withum (WoW) initiative.
Nicholas Murakami focuses on serving clients within the Industrial and Consumer Products Services practice.
Alex Rockoff leads the SportsTech practice, advising technology and emerging growth companies.
Benjamin Rodriguez is a Lead for Financial Reporting Valuation and provides corporate valuation consulting and proficiency in complex financial instruments.
Karin Salmeri specializes in tax services for cannabis companies within the Industrial and Consumer Products Services Team.
Robert Schneider serves on the Financial Services Team, focusing on venture capital and private equity funds, broker-dealers, registered investment advisors and SPACs.
Ruth Seip advises individuals on tax planning and compliance across a variety of industries.
John Smith provides tax consulting and compliance services to healthcare and tax-exempt organizations.
Kelsey Thomas is a leader within the Transaction Advisory Services Team, consulting on buying, selling, and growing companies.
James Trubenbach-Byrne is a joint leader of the Health and Hospital Systems Services practice, with a specialization in audit and accounting.

Leadership Transitions

A dynamic group of leaders will assume key roles across industry and service teams, regional offices and operational departments, effective July 1, 2026.

Learn More

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