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Multiple Award Schedule (MAS)

This Schedule provides Federal agencies with direct access to professionals who can thoroughly address the needs of the Federal financial community.

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GSA Schedule

GSA Multiple Award Schedule (MAS)

Castro & Company is a GSA Multiple Award Schedule contract holder. Our Contract Number is GS-23F-0038U.

Our GSA Schedule Special Items Numbers (SINs) include:

  • 541211 - Auditing Services
  • 541219 - Budget and Financial Management Services
  • 541611 - Management and Financial Consulting, Acquisition and Grants Management Support, Management Advisory Services

OASIS

Castro & Company is a contract holder of OASIS Small Business Pool 1 and OASIS Small Business Pool 2. OASIS and OASIS Small Business (SB) GSA’s OASIS Tier 3, Best-in-Class solutions make procuring professional services efficient by streamlining acquisition processes. The core disciplines of these contracts include financial services, program management, management consulting, and logistics services. Please contact us for further details: [email protected]
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One Acquisition Solution for Integrated Services

OASIS and OASIS Small Business (SB) GSA’s OASIS Tier 3, Best-in-Class (BIC) solutions make procuring complex professional services expedient by maximizing streamlined acquisition processes.

Key Personnel POC Information

Thomas Castro

Thomas Castro

Managing Partner
Castro’s Corporate OASIS Program Manager (COPM)

(703) 229-4440
[email protected]
Gabriel Fry

Gabriel Fry

Proposal & Contracts Manager
Castro’s Corporate OASIS Contract Manager (COCM)

(703) 229-4440
[email protected]

General Contracting Information

NAICS Codes

  • 541211 - Office of Certified Public Accountants
  • 541219 - Other Accounting Services
  • 541611 - Administrative and General Management Advisory Services
  • 541618 - Other Management Advisory Services
  • 561110 - Office Administrative Services
  • 541519 - Other Computer Related Services

Small Business Set-Asides

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Castro & Company can receive sole-source contracts up to the Simplified Acquisition Threshold in accordance with FAR Subpart 19.5-Set-Asides for Small Business.