Costanzo & Pepper, Certified Public Accountants is a public accounting firm located in Pasadena, CA. The firm provides tax, accounting, and business advisory services for business owners, executives, independent professionals, and a range of industries, including attorneys, medical practitioners, distributors, contractors, real estate developers, investors, and entertainers.

The practice focuses on tax preparation, tax planning, projections, and tax authority matters, along with accounting, bookkeeping, payroll, business planning, estate planning, retirement planning, and support for tax problems. Costanzo & Pepper also offers QuickBooks online and desktop services, including setup, training, and day-to-day issue resolution.