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Accounting: 541219
Auditing: 541211
Advisory: 541611

Other Management Advisory Services : 541618
Office Administrative Services: 561110
Other Computer Related Services : 541519

DUNS Number: 619053411

We provide Easy Solutions for Your Contracting Needs

GSA Multiple Award Schedule (MAS)

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

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.