Mccarthy Dennis
Vienna, VA
- UEI
- YJN8YSBHR8W8
- CAGE
- 6ZJR0
- SAM.gov registration
- Active through
Company facts
- FY2025 rankings
- Self-certified in SAM.gov
- Entity structure
- Sole Proprietorship
- SAM.gov registration date
- Physical address
- 2432 Riviera Dr, Vienna, VA 22181, USA
- Website
- referencesystems.info
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $0 |
| FY2026 | $51,300 |
| FY2025 | $51,300 |
| FY2024 | $51,300 |
| FY2023 | $51,300 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Navy | $51,300 |
Contract awards
Latest 5 listed here. See the rest on GovTribe.
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About the company
Mccarthy Dennis, a sole proprietorship based in Vienna, Virginia, provides Earth Orientation Parameters (EOP) technical consulting and subject matter expertise services to the Naval Observatory as a prime contractor under sole-source purchase orders, with no set-aside designations and no subcontract footprint.
The vendor's customer concentration is absolute: all thirteen awards in the source data come from a single customer, the Department of the Navy Naval Observatory, representing $712 thousand in combined potential value. This extreme concentration reflects the vendor's specialized role — the source describes Mccarthy Dennis as performing work that requires "specialized expertise in Earth Orientation Parameters analysis and IERS-related work," with the Naval Observatory developing and maintaining EOP standards for the Department of Defense components. Recent representative work includes a $134,160 firm-fixed-price purchase order awarded July 10, 2026, for continued EOP services with performance extending through July 9, 2030; a $71,040 purchase order awarded May 15, 2024, for maintenance and updating of the IERS 2010 Conventions under simplified acquisition procedures, with ultimate completion May 14, 2028; and a $134,160 purchase order awarded July 10, 2022, for Enterprise EOP subject matter expertise and system improvements, completed July 9, 2026.
Activity is sparse and episodic rather than continuous: the source shows two awards in 2017, two in 2019, one in 2022, one in 2024, and one in 2026, with no awards in the intervening years. One award ($71 thousand combined potential value) faces ultimate completion within the next twenty-four months and therefore represents recompete exposure. Work is classified primarily under Other Scientific and Technical Consulting Services (NAICS 541690) and Special Studies/Analysis — Scientific Data (PSC R703), reflecting the specialized nature of EOP technical support. All work occurs in Washington, DC and Vienna, Virginia, under firm-fixed-price structures with no subcontractors noted.
Quick answers
Is Mccarthy Dennis registered in SAM.gov?
Yes. Mccarthy Dennis's SAM.gov registration is active through January 8, 2027.
How much has Mccarthy Dennis received in federal contracts?
Federal contracts obligated $51,300 to Mccarthy Dennis in fiscal year 2025 and $205,200 in fiscal years 2023 through 2027.
How does Mccarthy Dennis rank among federal contractors?
Mccarthy Dennis ranked #28 in NAICS 511199 and #84 in NAICS 5111 in FY2025.
What is Mccarthy Dennis's most recent federal award?
Mccarthy Dennis's most recent federal contract award is This instant requirement is to procure earth orientation parameters (EOP) services performed by DR. Dennis mccarthy… (N0018926PL153), from Naval Supply Systems Command (Navy), on July 10, 2026.
On GovTribe
See Mccarthy Dennis's full federal record
- Federal contract awards
- Funding analysis by agency, NAICS and set-aside
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