Seiler LLP Auditor Profile

Seiler LLP is a certified public accounting and advisory firm headquartered in Redwood City, California, with additional Bay Area offices in San Francisco, San Jose, and Walnut Creek. Founded in 1957, the firm grew to more than 300 professionals serving ultra-high-net-worth individuals, family offices, closely held enterprises, and nonprofits across Silicon Valley and nationally. Seiler has since been acquired by Baker Tilly US, and its practice now operates as part of the Baker Tilly platform.

Seiler's assurance work includes SOC 1 and SOC 2 examinations and IT risk services for service organizations, alongside traditional audit, tax, and advisory offerings.

Prospective clients should note the Baker Tilly acquisition when evaluating engagement terms, as service delivery and branding are transitioning to the combined firm. The practice remains oriented toward Bay Area technology, financial services, and real estate organizations.