Executive Team

Diane E. Wittenberg, CPA

Audit Partner

“Growing and developing our team is an integral part of our operating values and culture. By making the investment in our team, we are able to lead through exceptional client service and innovative new ways of delivering results.”

With Haskell & White since: 2002

Diane E. Wittenberg is an Audit Partner in the Firm’s Audit and Business Advisory Services Group and has been with the Firm since 2002. Prior to joining Haskell & White LLP, she spent 17 years with Arthur Andersen. Diane leads her teams to provide a variety of audit and business advisory services for public and private companies, as well as nonprofit organizations. Providing value beyond meeting compliance requirements is a key focus for her.

Diane has experience in multiple industries, working with companies that range from small start-ups to large, multi-national corporations. Her experience also includes special projects, including mergers and acquisitions, initial public offerings, secondary offerings and SOX compliance consulting projects. Diane’s practice also extends to the non-profit sector where she works with a wide variety of organizations ranging from community based non-profits to universities and foundations that require specialized auditing requirements to receive their government funding.

Industries & Areas of Specialty:
  • Life Science/ Bio-Pharma
  • Manufacturing, Distribution & Technology
  • Non-Profit
  • Real Estate
  • Public & Private Companies
  • Mergers & Acquisitions
    Initial Public Offerings
  • Compliance
 Industry and Professional Affiliations:
  • American Institute of Certified Public Accountants (AICPA)
  • Association for Corporate Growth – Board of Directors and Chair of Women in Leadership Committee
  • California Society of Certified Public Accountants (CalCPA)
  • University of California, Santa Barbara
  • Graduated with High Honors
  • Scored in the top 10 scores on the May 1985 CPA exam
Community Involvement:
  • Mariposa Women and Family Center – Executive Committee of the Board of Directors, Chair of the Finance Committee and Treasurer
  • Discovery Cube OC – Audit Committee Chairman

Big firm experience. Local firm attention.
Contact us and we’ll prove it.

We specialize in uncovering challenges and maximizing opportunities for middle-market companies at every stage of development. Our team of big firm-trained professionals deliver deep expertise and sophisticated accounting solutions within a fee structure that makes sense for middle-market organizations. Contact us today to discuss how we can strengthen your business with our “value of experience.”