Headquartered in Ventura and serving clients across California and the U.S., Sierra Managed Accounting Services delivers full-service back office support tailored to your business. Whether you’re a startup, nonprofit, or established enterprise, our experienced team—Senior Staff Accountants, Accounting Leads, Bookkeepers, and Payroll Pros—becomes your extended accounting department.

From bookkeeping and payroll to compliance and financial strategy, we provide accurate, timely solutions that fit your unique needs. No cookie-cutter approaches here. We build around you—so you can stay focused on growing your business while we handle the numbers.