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Zsia Rosmarin

Partner at Withum, Women in Tech Team Leader

Zsia Rosmarin is a Partner and Team Leader at WithumSmith+Brown (Withum), with over 20 years of professional experience in accounting and taxation.1 She specializes in the Technology and Emerging Growth Services tax practice, focusing on corporate clients with ASC 740 Tax Provisions and Tax Compliance.1

Key aspects of Zsia Rosmarin's career and achievements include:

  1. Leadership roles:

    • Partner-in-charge of Withum's Whippany office2
    • Leader of the Tax Tech and Emerging Growth Industry Group1
    • Founder and leader of Withum's Women in Technology Group1
    • Co-Leader of "Women of Withum's" empowerment program1
  2. Areas of expertise:

    • Strategic tax planning and consultation
    • Tax provisions and compliance
    • Tax credits and incentives
    • State and local income tax
    • International taxes
    • M&A due diligence
  3. Recognition and awards:

    • Named one of New Jersey's 2019 Best 50 Women in Business by NJBIZ14
    • Selected as a "Woman Worth Watching in STEM" by Profiles in Diversity Journal in 20225
    • Named a "Women in Business Influencer" by ROI-NJ in 20223
    • Honored as "Woman of the Year" by the American Woman's Society of Certified Public Accountants of New Jersey in 20101
  4. Education:

    • Master of Science in Taxation from the State University of New York, Albany
    • Bachelor of Science in Accounting from the State University of New York, Albany2

Zsia is known for her passion for mentoring women founders and executives, and she actively organizes networking events, seminars, and programs to foster a strong community for women in technology and business.3

Highlights

Jan 20 · withum.com
Withum's 2025 State of the Firm Echoes Power in Connection
Oct 15 · withum.com
Zsia Rosmarin - Withum
Zsia Rosmarin - Withum
Jun 24 · withum.com
Withum Announces Firmwide Leadership Transitions
Jun 12 · njbiz.com
FEATURED MOVER: Zsia Rosmarin | Withum - NJBIZ
FEATURED MOVER: Zsia Rosmarin | Withum - NJBIZ
Zsia Rosmarin, CPA – Women Worth Watching®
Zsia Rosmarin, CPA – Women Worth Watching®

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Zsia Rosmarin
Zsia Rosmarin, photo 1
Zsia Rosmarin, photo 2
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Location

New York City Metropolitan Area