Tdg, Inc.
Alexandria, VA Doing business as The Diallo Group
- UEI
- MMQ3DH41J2G9
- CAGE
- 9Z001
- Primary NAICS
- 541320 Landscape Architectural Services
- SAM.gov registration
- Active through
Company facts
- SBA certifications
-
Veteran-Owned Small Business– · CurrentService Disabled Veteran-Owned Small Business– · Current
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Other NAICS codes in SAM.gov
-
- 541310 Architectural Services
- 541330 Engineering Services
- 541350 Building Inspection Services
- 541370 Surveying and Mapping (except Geophysical) Services
- 541410 Interior Design Services
- 541511 Custom Computer Programming Services
- 541512 Computer Systems Design Services
- 541513 Computer Facilities Management Services
- SAM.gov registration date
- Physical address
- 100 N Pitt St #402, Alexandria, VA 22314, USA
- Website
- onyxgroup.com
- Founded
- 1982
- Employees
- 11-50
- Estimated annual revenue
- $1M-$10M
- Industry
-
- Industrials
- Commercial & Professional Services
- Professional Services
- Architecture
- SIC code
- 87 Engineering & Management Services
- Profiles
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 | $0 |
| FY2025 | $0 |
| FY2024 | $190,502 |
| FY2023 | $207,264 |
Contract vehicles
Expired vehicles (2)
Contract awards
Latest 5 listed here. See the rest on GovTribe.
Contract subawards
| Prime contractor | Prime award | Amount | Awarded |
|---|---|---|---|
| Marstel-Day, LLC | N4008024F5012 | $154,257 | |
| Marstel-Day, LLC | N4008024F4735 | $205,141 | |
| HDR Environmental, Operations And Construction, Inc. | W9127822F0418 | $558,018 | |
| Aecom-Baker-Cardno Navfac Atlantic Planning JV | N4008523F6836 | $266,393 | |
| Aecom-Baker-Cardno Navfac Atlantic Planning JV | N6945023F0876 | $631,831 |
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About the company
Onyx Of Alexandria, Inc., doing business as The Diallo Group, is a woman-owned, small business headquartered in Alexandria, Virginia, with a robust presence in the federal government contracting landscape. Registered in SAM.gov since 2001 and certified across multiple business categories including woman-owned, veteran-owned, and Black American-owned, the company specializes in providing comprehensive architectural, engineering, construction, and master planning services to federal agencies. The firm has established itself as a versatile and experienced prime contractor capable of delivering sophisticated facility design, renovation, and planning solutions across various government sectors.
The company's federal contract portfolio demonstrates a concentrated focus on architectural and engineering services, primarily for federal judicial facilities, military installations, and homeland security buildings. Recent contract awards include a $180,587 project for the Air Force's Mission Planning Center in Trenton, New Jersey, a $308,917 renovation of office space in the William S. Moorhead Federal Building for U.S. Customs and Border Protection, and multiple projects for the Administrative Office of the U.S. Courts involving courthouse chamber and office space design in Pittsburgh, Pennsylvania. Onyx Of Alexandria has also performed master planning services for Air Force bases, including work at Barksdale and Luke Air Force Base, with contract values ranging from $106,514 to $474,817. The firm consistently receives non-set-aside contracts, indicating competitive capability, and has worked with agencies such as the Department of Justice, Department of Homeland Security, Air Force, and General Services Administration. Additionally, the company has engaged in subcontract work with firms like Marstel-Day LLC and HDR Environmental, supporting transportation management plans and area development projects.
SBA capabilities narrative
Established in 1982, Onyx is a Small Business and is headquartered in Alexandria, Virginia with branch offices in Honolulu, HI and San Diego, CA. Onyx provides land, facilities and infrastructure planning, design, and geospatial information management worldwide. Personal attention, involvement of principals, and high quality deliverables reflect the commitment and responsiveness to our client's needs which has been the hallmark of our practice. Onyx has a long history of providing planning, design and information management services to the Department of Defense, classified Agencies, and other Federal Agencies. Our multidisciplinary approach allows us to proactively respond to the clients increasingly comprehensive, complex and mission-oriented requirements. Our objective is to provide the right team, the right people, and the right experience along with the right mix of freshness, objectivity and innovation.
Quick answers
Is Tdg, Inc. registered in SAM.gov?
Yes. Tdg, Inc.'s SAM.gov registration is active through December 2, 2026.
What is Tdg, Inc.'s CAGE code?
Tdg, Inc.'s CAGE code is 9Z001, and its Unique Entity ID (UEI) is MMQ3DH41J2G9.
Which SBA certifications does Tdg, Inc. hold?
Tdg, Inc. holds Veteran-Owned Small Business and Service Disabled Veteran-Owned Small Business certifications from the SBA.
Which contract vehicles does Tdg, Inc. hold?
Tdg, Inc. holds a place on 4 federal contract vehicles, including MAS and PSS.
How much has Tdg, Inc. received in federal contracts?
Federal contracts obligated $397,766 to Tdg, Inc. in fiscal years 2023 through 2027.
What is Tdg, Inc.'s most recent federal award?
Tdg, Inc.'s most recent federal contract award is Architect and engineering- B1730E repair east wing for MPC (FA448424C0009), from Air Mobility Command (USAF), on July 1, 2024.
On GovTribe
See Tdg, Inc.'s full federal record
- Federal contract awards
- IDV awards
- Contract vehicles
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
- Similar vendors