MCDEMUS & CO LLC (VA)
Registration and award facts
SAM.gov registration as of
Net obligations recorded since FY2017 under this UEI: $514,094 across 1 award or order with positive net obligations.
- SAM.gov registration status
- Active (registration expiration date Sep 8, 2027)
- UEI
- JXT4E7UEXX11
- CAGE code
- 5VS48
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Business start date
- Nov 30, 2006
- Location
- MANASSAS, VA
- Website
- mcdemuscpa.com
NAICS codes
- 541211 Offices of Certified Public Accountants (primary)
- 541611 Administrative Management and General Management Consulting Services
- 541219 Other Accounting Services
- 541990 All Other Professional, Scientific and Technical Services
- 512110 Motion Picture and Video Production
- 561110 Office Administrative Services
- 541213 Tax Preparation Services
- 541930 Translation and Interpretation Services
Product and service codes (PSC)
- Q601 MEDICAL CODING AND AUDITING
- B547 SPECIAL STUDIES/ANALYSIS- ACCOUNTING/FINANCIAL MANAGEMENT
- R703 SUPPORT- MANAGEMENT: ACCOUNTING
- V226 TRANSPORTATION/TRAVEL/RELOCATION- TRAVEL/LODGING/RECRUITMENT: TAXICAB
- R702 SUPPORT- MANAGEMENT: DATA COLLECTION
- R704 SUPPORT- MANAGEMENT: AUDITING
- R610 SUPPORT- ADMINISTRATIVE:- PERSONAL PROPERTY MANAGEMENT
- R410 SUPPORT- PROFESSIONAL: PROGRAM EVALUATION/REVIEW/DEVELOPMENT
- R799 SUPPORT- MANAGEMENT: OTHER
- R408 SUPPORT- PROFESSIONAL: PROGRAM MANAGEMENT/SUPPORT
SBA certifications
No certification in the SBA profile data.
Business types self-reported in SAM.gov registration: Minority-Owned Business; Black American Owned; Self Certified Small Disadvantaged Business.
Federal contract obligations
- Net obligations recorded since FY2017
- $514,094
- Awards and orders with positive net obligations
- 1
- IDV vehicles held
- 1
- FY2026 obligations (provisional; DoD awards signed after Jul 17, 2026 are not yet public)
- -$37,031
- Latest action
- Oct 11, 2026
Top awarding agencies: Department of the Interior
Latest awards and orders
- GS00F142GA FSS · Federal Acquisition Service · latest action Oct 11, 2026
- 140D0423F1237 DELIVERY ORDER · Departmental Offices · latest action Mar 6, 2026
Other contractors in Virginia with primary NAICS 541211
- KPMG LLP MCLEAN, VA
- KEARNEY & COMPANY, P.C. ALEXANDRIA, VA
- Sikich CPA LLC ALEXANDRIA, VA
- CASTRO & COMPANY, LLC ALEXANDRIA, VA
- RMA ASSOCIATES LLC ARLINGTON, VA
- Reed & Associates, CPAs, Inc. MANASSAS, VA
Source: SAM.gov entity registration and FPDS contract actions recorded under UEI JXT4E7UEXX11. GovChime does not check exclusions.
Key Performance Statistics
View obligations by year, agencies and performance history
Capabilities
NAICS Codes
See all industry codes with contract counts
Product/Service Codes
As of . Source: SAM.gov Goods & Services.
Showing 10 of 16 codes
Certifications
Self-Certifications
Business Types
Federal Capability Statement
McDemus & Co. is a full service CPA firm. Our core service include, but is not limited to management consulting, tax services, auditing, accounting, bookkeeping, risk assurance, internal control assessment and documentation, and employee training and development. We also provide Audit Support Services, Audit Readiness, A-123 support and implementation, A-133 audits, Financial Statement preparation and support, Due Diligent review and examinations, Financial and Construction Audits, Contract Closeout Audits, Grants & Financial award audits, Accounts Reconciliation & Budgeting and Recapture audits and Duplicate Payment audits.
Capabilities & Services
Contracts
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Contact Info
As of . Source: SAM.gov Points of Contact.
SAM.gov registration for MCDEMUS & CO LLC lists a physical address and a separate mailing address, along with 6 verified points of contact. Past Performance contacts are the recommended outreach channel for due-diligence references; Government Business contacts handle procurement-facing correspondence.
Source: SAM.gov entity registration. Contacts displaying numeric or placeholder names have been filtered (defense-in-depth).
Physical Address
8711 PLANTATION LN
STE 302
MANASSAS, VA, 20110
USA
Mailing Address
8711 PLANTATION LN
STE 302
MANASSAS, VA, 20110
USA
Government Business Contact
Ume N Onwuka
MANAGING PARTNER
8711 Plantation Lane
Suite 302
Manassas, VA, 20110
USA
Electronic Business Contact
Ume N Onwuka
MANAGING PARTNER
8711 Plantation Lane
Suite 302
Manassas, VA, 20110
USA
Past Performance Contact
UME N ONWUKA
MANAGING PARTNER
8711 Plantation Lane
Suite 302
Manassas, VA, 20110
USA
Government Business Alternate Contact
Ume N Onwuka
12217 RAINY DAY WAY
Gainesville, VA, 20155
USA
Electronic Business Alternate Contact
UME N Onwuka
12217 RAINY DAY WAY
Gainesville, VA, 20155
USA
Past Performance Alternate Contact
UME N ONWUKA
MANAGING PARTNER
8711 Plantation Lane
Suite 302
Manassas, VA, 20110
USA
Additional Details
As of . Source: SAM.gov Entity Registration.
MCDEMUS & CO LLC has no active federal suspension or debarment on record in SAM.gov. Current SAM.gov registration expires September 8, 2027.
Source: SAM.gov entity registration (FAR responses, registration status). Always verify active exclusions against the authoritative record on SAM.gov before contract award.
Compliance & Risk Assessment
Source: SAM.gov FAR responsesSuspension/Debarment Status
No active suspension or debarment
Public Display
Entity information is publicly displayed
Disaster Relief Registry
Registered for disaster relief contracting
Bonding Information
No bonding information provided
EDI
Not declared in SAM.gov
Business Structure
Source: SAM.govRegistration Details
Source: SAM.govDate Founded
Initial Registration
Last Update
Registration Activation
Registration Expiration
Fiscal Year End
State of Incorporation
Country of Incorporation
Congressional District
Entity Website