Diane Wittenberg

Diane Wittenberg

August 20 - Diane Wittenberg headshot (430x450)A partner in the firm’s Audit and Business Advisory Services Group, Diane Wittenberg has close to 30 years of experience in public accounting. Prior to joining Haskell & White, one of the largest independently owned accounting, auditing and tax consulting firms in Southern California, she spent 17 years with Arthur Andersen.

Diane has experience in multiple industries, working with both public and private companies that range from small startups to large, multinational 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 nonprofit sector, serving universities and foundations that require specialized auditing requirements to receive government funding.

Graduating from University of California, Santa Barbara with high honors, she also scored within the top 10 scores on the May 1985 CPA exam for the State of California.

She is the Audit Committee Chairman of the Discovery Science Center as well as a member of the American Institute of Certified Public Accountants (AICPA) and the California Society of Certified Public Accountants (CalCPA). She serves on the Executive Committee of the Board of Directors, is chair of the Finance Committee and serves as Treasurer for Mariposa Women and Family Center.  She is also on the Board of the Association for Corporate Growth (ACG) Orange County chapter, and is Chair of their Women in Leadership Committee.

Diane can be reached at dwittenberg@hwcpa.com or 949-450-6334.