OUM & Co, LLP, was formed in 1976 and is a leading accounting & business advisory firm in California, with offices in San Francisco and San Diego (Carlsbad). Our firm is listed as a Top 25 Bay Area firm, is recognized as one of the Top 200 firms in the U.S. by INSIDE Public Accounting and has over seventy professionals, many of whom are experienced partners/managers (formerly with Big 4 firms). We offer solutions to our clients & stress active partner involvement, timely communication, and continuity of experienced professional staff.

We provide high quality assurance, tax and advisory services. We are committed to building lifelong relationships with our clients, employees and the communities we serve, guided daily by our core values: Respect and Recognition, Trust, Quality, Community & Success,. When you work with us, you will see how our values are embedded in everything we do - and how they enhance your experience and our engagement performance.

We are an independent member of the BDO Seidman Alliance. BDO is a member firm of BDO International, the fifth largest accounting/consulting network in the world, with offices in 110 countries. Our affiliation affords us access to national and international offices; technical expertise; specialized resources; quality assurance; high-caliber training; and the latest technical and reporting developments. We are registered with the PCAOB & have successfully completed several on-going peer reviews.

Specialties: Audit, tax, & advisory services-public/private companies-life sciences, technology, real estate, private equity/investment funds, consumer products and manufacturing industries among others. We serve start-up's, provide consulting (IT risk assessment, due diligence, continuity plans) & tax planning for high net worth individuals & family-owned businesses.

We also serve: employee benefit plans, professional service firms, government/not-for-profit entities & provide litigation/forensic services.