Federal contractor profile
GREYSTONES CONSULTING GROUP, LLC
UEI X5UBMDXTTTQ7CAGE 31RQ4Company website ↗
Active
Woman Owned Small BusinessWoman Owned BusinessSmall Business
Overview
- Legal name
- GREYSTONES CONSULTING GROUP, LLC
- Also known as
- GREYSTONES GROUP
- Registered location
- WASHINGTON, DC, USA
- Website
- Company website ↗
- Primary NAICS
- 541330 — Engineering Services
- Latest award activity
- Aug 7, 2026
Read company summary
GREYSTONES CONSULTING GROUP, LLC is associated with UEI X5UBMDXTTTQ7 and CAGE 31RQ4 in public federal records. AcornBids currently links 10 prime awards totaling $26.6M in obligations to this entity. Its largest recorded federal customer by obligations is Department of Defense. Its recorded federal awards include work classified as Engineering Services; Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology); Custom Computer Programming Services. These categories describe the loaded award records, not a complete list of company capabilities. Its primary SAM.gov NAICS is 541330 (Engineering Services). Its public SAM.gov registration lists WASHINGTON, DC, USA.
At a glance
Lifetime prime obligations$26.6M
Prime awards10
Awards with future end dates3
Top-agency concentration
Not available
Why this customer concentration
Detailed agency totals are not available in this stored profile.
Largest positive coded-agency total ÷ all positive coded-agency totals × 100
Missing data is shown as unavailable.
Prime contract obligations across loaded award records. Obligations are not revenue or contract ceilings. Summary updated Sep 28, 2026. Refresh pending; these totals may be out of date.
Business information
Public SAM.gov registration details.
- Legal name
- GREYSTONES CONSULTING GROUP, LLC
- Doing business as
- GREYSTONES GROUP
- UEI
- X5UBMDXTTTQ7
- CAGE
- 31RQ4
- Registered address
- 300 M ST SE STE 325, WASHINGTON, DC, 20003, USA
- Registration status
- Active
- Primary NAICS
- 541330 — Engineering Services
- SAM activation
- Apr 6, 2026
- Initial registration
- Sep 21, 2004
- Entity start
- Sep 30, 1999
- SAM updated
- Apr 6, 2026
- Registration expires
- Apr 2, 2027
- Fiscal year end
- Dec 31
- Place of incorporation
- DC, USA
Federal award analysis
Net transaction obligations by federal fiscal period.
Transaction history is not available in the loaded data. Annual funding is not estimated from current award totals.
Recent federal awards
Prime contract awards. Select an award to review its history and source evidence.
| Award / description | Awarding agency | Obligations | Start date | End date |
|---|---|---|---|---|
| 47QTCA20D0076FEDERAL SUPPLY SCHEDULE CONTRACT | General Services Administration | $360.0K | Mar 12, 2020 | Not available |
| N6426726F3002TO PROVIDE PROFESSIONAL AND ENGINEERING SUPPORT SERVICES FOR NAVSEA06D | Department of Defense | $5.4M | Mar 31, 2026 | Mar 30, 2031 |
| N0017819D7736SEAPORT-NXG | Department of Defense | $10.0B | Jan 2, 2019 | Not available |
| N0018926PW004ADMIRAL GOODING CENTER TECHNICAL AND EVENT ADMINISTRATION SUPPORT SERVICES IN SUPPORT OF NAVAL SUPPORT ACTIVITY WASHINGTON (NSAW) | Department of Defense | $245.2K | Jan 30, 2026 | Apr 30, 2026 |
| N0017420F3004AWARD OF TASK ORDER | Department of Defense | $17.3M | Jul 28, 2020 | Apr 10, 2026 |
| HQ085926DF237THE CONTRACTOR SHALL PERFORM THE WORK SPECIFIED IN SECTION C OF THIS SCALABLE HOMELAND INNOVATIVE ENTERPRISE LAYERED DEFENSE (SHIELD) MULTIPLE AWARD INDEFINITE DELIVERY… | Department of Defense | $151.0B | Dec 29, 2025 | Not available |
| HQ085926FF597SCALABLE HOMELAND INNOVATIVE ENTERPRISE LAYERED DEFENSE (SHIELD) INITIAL ORDER. | Department of Defense | $500 | Dec 29, 2025 | Dec 28, 2035 |
| W519TC24F0437THE PURPOSE OF THIS ORDER IS TO SUPPORT CDAO'S ENTERPRISE PLATFORMS & SERVICES, ASSESSMENT & ASSURANCE DIVISION, SYSTEMS ENGINEERING AND TECHNICAL ASSISTANCE SUPPORT. THIS TASK… | Department of Defense | $572.3K | Sep 27, 2024 | Feb 26, 2027 |
| N0018920F3032EVENT AND INFORMATION TECHNOLOGY SUPPORT SERVICES | Department of Defense | $5.1M | Aug 1, 2020 | Feb 28, 2026 |
| FA861221D0144ADVANCED BATTLE MANAGEMENT SYSTEMS | Department of Defense | $950.0M | Jul 8, 2021 | Not available |
Upcoming positioning windows
Modeled recompete windows are estimates, not announced solicitations or guarantees.
Registration, certifications & contacts
| Registration evidence | Date |
|---|---|
| SAM updated | Apr 6, 2026 |
| Source loaded | Sep 26, 2026 |
| Initial registration | Sep 21, 2004 |
| Entity start | Sep 30, 1999 |
Registration classifications: Woman Owned Small Business, Woman Owned Business, Small Business. These are separate from the reported certificates above.
| Industry | Reported size status |
|---|---|
| 541330 — Engineering Services | Not reported |
| 541511 — Custom Computer Programming Services | Not reported |
| 541512 — Computer Systems Design Services | Not reported |
| 541513 — Computer Facilities Management Services | Not reported |
| 541519 — Other Computer Related Services | Not reported |
| 541611 — Administrative Management and General Management Consulting Services | Not reported |
| 541613 — Marketing Consulting Services | Not reported |
| 541614 — Process, Physical Distribution, and Logistics Consulting Services | Not reported |
| 541618 — Other Management Consulting Services | Not reported |
| 541690 — Other Scientific and Technical Consulting Services | Not reported |
| 541715 — Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) | Not reported |
| 541990 — All Other Professional, Scientific, and Technical Services | Not reported |
| 561210 — Facilities Support Services | Not reported |
| 561320 — Temporary Help Services | Not reported |
| 561499 — All Other Business Support Services | Not reported |
| 561990 — All Other Support Services | Not reported |
| 611420 — Computer Training | Not reported |
| 611430 — Professional and Management Development Training | Not reported |
| 611519 — Other Technical and Trade Schools | Not reported |
| Contact | Role | Published contact methods | Evidence | Source date |
|---|---|---|---|---|
| SHEILA DUFFY | Government business | Contact method not published | SAM registration | Not available |
| JOHN HOPKIN | Alternate government business | Contact method not published | SAM registration | Not available |
| JULIE LOFREDDO | Electronic business | Contact method not published | SAM registration | Not available |
| SHEILA DUFFY | Alternate electronic business | Contact method not published | SAM registration | Not available |
| Published business contact | Published business phone | 202-644-8998 | Source | Sep 9, 2026 |
Registered industries
- 541330 — Engineering Services
- 541511 — Custom Computer Programming Services
- 541512 — Computer Systems Design Services
- 541513 — Computer Facilities Management Services
- 541519 — Other Computer Related Services
- 541611 — Administrative Management and General Management Consulting Services
- 541613 — Marketing Consulting Services
- 541614 — Process, Physical Distribution, and Logistics Consulting Services
- 541618 — Other Management Consulting Services
- 541690 — Other Scientific and Technical Consulting Services
- 541715 — Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
- 541990 — All Other Professional, Scientific, and Technical Services
- 561210 — Facilities Support Services
- 561320 — Temporary Help Services
- 561499 — All Other Business Support Services
- 561990 — All Other Support Services
- 611420 — Computer Training
- 611430 — Professional and Management Development Training
- 611519 — Other Technical and Trade Schools
Registration classifications and published certificates do not by themselves establish eligibility for a particular solicitation. View SAM source
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About GREYSTONES CONSULTING GROUP, LLC
What products and services appear in its federal awards?
Recorded award industries: 541330 — Engineering Services; 541715 — Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology); 541511 — Custom Computer Programming Services.
Recorded products and services: R425 — Engineering and Technical Services; AC13 — NATIONAL DEFENSE R&D SERVICES; DEPARTMENT OF DEFENSE - MILITARY; EXPERIMENTAL DEVELOPMENT; R499 — Other Professional Services.
Examples from recent award records:
- FEDERAL SUPPLY SCHEDULE CONTRACT
- TO PROVIDE PROFESSIONAL AND ENGINEERING SUPPORT SERVICES FOR NAVSEA06D
These records describe federal award work, not every company capability. Review the award evidence.
Where is the company registered?
300 M ST SE STE 325, WASHINGTON, District of Columbia 20003, United States
Registered location from SAM.gov; award performance locations may differ.
What is its primary registered industry?
541330 — Engineering Services.
Primary SAM.gov NAICS classification.
Which federal agencies are represented in its awards?
Department of Defense; General Services Administration.
Data coverage and methodology
Sources: SAM.gov registration, USAspending awards and transactions, and linked supporting records. Prime contract obligations, IDV ceilings and assistance amounts are kept separate. Missing records are not zero activity. Company claims are labeled separately. Recompete signals are rule-based scores out of 100. Positioning windows are AcornBids estimates.
No official subaward rows are loaded, so Acorn does not claim known teaming relationships.
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