Wittenberg CPA, PS is a CPA accounting and financial consulting firm based in Shelton, WA, serving clients across the South Puget Sound region. The firm works with small businesses, individuals, families, nonprofits, hospitality clients, and other organizations on practical accounting, tax, and financial needs.

Its services include tax planning and tax preparation, accounting and bookkeeping, payroll, IRS notice and audit help, and support for business finance topics such as cash flow management, internal controls, business advisory, and new business formation. The firm also provides QuickBooks services, including setup, training, answers to questions, and tune-ups for clients who use the platform.