Jessica-Roster_Web

Jessica R. Roster

CPA Partner

Get to Know Me

With over two decades of experience, Jessica works with defined benefit, defined contribution, 401(k), health and welfare, vacation, scholarship and apprentice training funds and assists charitable, membership and labor organizations with audits, reviews, compilations and return preparation.

Industry Expertise

Service Expertise

Learn More About My Story

Learn more about my professional experience and how I spend my time outside the firm.

Education:

  • BS, University of California, Santa Cruz

Professional Affiliations:

  • Member, American Institute of Certified Public Accountants (AICPA)
  • Member, California Society of Certified Public Accountants (CalCPAs)
  • Member, International Foundation of Employee Benefit Plans
  • Top 50 Accountant, San Francisco Business Times and CalCPA – 2026

Jessica is a dedicated advocate for advancing women in the accounting profession, having served leadership roles as Chair, Co-Chair and committee member of the CalCPA Women’s Leadership Forum. She has also contributed as a speaker at the CalCPA Employee Benefits Plan Conference, sharing insights with peers and industry professionals.

Authored Insights

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CalCPA Names Withum Leaders to 2026 NorCal Top 50 Accountants

Top 50 Accountant Honorees at Withum Brandon Yip Brandon Yip is a partner who leads Withum’s Technology and Emerging Growth Services Team in the San Francisco Bay Area. He focuses on advising public and private companies on audit, regulatory and transactional matters while helping innovation-driven organizations scale. Deeply connected to Northern California, he supports the region’s technology and life sciences ecosystem…