Endries Otto, LLC is a Wisconsin licensed public accounting firm serving clients from offices in Neenah and Brillion. The firm works with business owners, executives, independent professionals, individuals, and small business owners, with services spanning tax, accounting, payroll, and business support.

Its tax work includes tax preparation, tax planning, tax problems, income tax compliance, and small business income tax returns. Business services include small business accounting, payroll, part-time CFO services, forecasting and budgeting support, and assistance with accounting systems and software packages.

The firm also lists QuickBooks setup and training, estate planning, compilation and review engagements, and business valuation reports among its available capabilities. Staff profiles reference CPA, CMA, CVA, and EA credentials, with team members working across individual, small business, and consulting needs.