Skip to content

Company Profile


McDemus & Co., CPA is a minority owned Certified Public Accounting and Management Consulting firm. The firm is registered as a domestic Virginia limited liability corporation. The firm is a full service certified public accounting firm specializing in accounting, auditing, taxation, risk assurance and compliance, management consulting, budgeting, and internal control assessment. The firm is SBA 8(a) and DBE certified.


  • Internal Control Review and Assessments (including A-123 audits)
  • Construction Audits
  • Closeout Audits
  • Tax Preparation/Planning
  • System Setup (including chart of accounts)
  • Financial and Performance Audits
  • Accounts Reconciliation
  • Account Closings, Review and Reconciliations
  • A-133 Audits (Yellow Book)
  • Recapture Audit (duplicate payments)
  • Audit Readiness

The Partners have over 65 years of combined experience in all aspects of Accounting, Auditing, and Tax services. The Managing Partner; Ume Onwuka has served in various auditing, accounting, and consulting capacities in industry, government, and public accounting. He served as District Audit Manager to the Northern Virginia District of the Virginia Department of Transportation. Mr. Onwuka served with the Governor’s Best Practice Team reviewing agency processes to identify opportunities for improvement under the direction of the Chief of Staff. In public accounting, he led several audits of government clients such as the Federal Communications Commission, the Metropolitan Washington Airports Authority, the City of Richmond, and other government entities.


We provide service in various aspects of accounting, auditing, grant reviews, budgeting and budgetary reviews, taxation, financial consulting services, cost benefit analysis, management advisory, payroll audit, risk assessment and assurance services, compliance reviews, quality control evaluation, construction and construction closeout audits, information system access reviews, review of systems and internal controls, employee development, and project management.

Click here to download full company profile PDF


Ask a Question

Find comfort in knowing an Expert in accounting is only an email or phone-call away.

(703) 270-1006

We Are Here to Help

We will happily offer you a free consultation to determine how we can best serve you.

Contact Us

Send us a File

Use our convenient SecureSend page to securely deliver a file directly to a member of our firm.

Secure Send


Subscribe to our newsletter to receive news, updates, and valuable tips.