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Accounting Firm

Castro & Company LLC

Alexandria, Virginia CPA firm providing audit, advisory and accounting services to US federal agencies

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About Castro & Company LLC

Castro & Company LLC is a certified public accounting firm in Alexandria, Virginia, whose work centres on the US federal government. It audits federal agencies under Government Auditing Standards, known as the Yellow Book, and offers advisory and accounting help shaped to each agency's requirements.

Products and services

  • Federal audits: financial audits carried out under Government Auditing Standards.
  • Advisory services: work fitted to the specific goals and requirements of each agency.
  • Accounting services: support grounded in federal accounting requirements.
  • Quality control: an internal quality control system built to AICPA requirements, with ongoing staff training.

Who it serves

Most of its clients are federal government agencies. It says it pairs the personal attention of a small firm with the resources expected of a larger one, and it was among six companies awarded NASA contracts.

Key facts

  • Based in: Alexandria, Virginia
  • Focus: federal government audit and accounting
  • Standards: Yellow Book audits; AICPA quality control

Profile written by TrustList from the business's own published information, Sep 2026.

Rankings

As of 2026-10-10. Organic ranks only; sponsored placements are never ranks.

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