Simpson Gumpertz & Heger Inc.
Washington, DC DC Office
- UEI
- QMT3N6NES4L5
- CAGE
- 8U8C8
- Primary NAICS
- 541330 Engineering Services
- SAM.gov registration
- Active through
Company facts
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Other NAICS codes in SAM.gov
-
- 236220 Commercial and Institutional Building Construction
- 541310 Architectural Services
- 541340 Drafting Services
- 541380 Testing Laboratories and 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
- 611430 Professional and Management Development Training
- SAM.gov registration date
- Physical address
- 1828 L St NW #950, Washington, DC 20036, USA
- Website
- sgh.com
- Founded
- 1956
- Employees
- 251-1K
- Estimated annual revenue
- $100M-$250M
- Industry
-
- Industrials
- Capital Goods
- Construction & Engineering
- Civil Engineering
- SIC code
- 87 Engineering & Management Services
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Contract subawards
| Prime contractor | Prime award | Amount | Awarded |
|---|---|---|---|
| HDR Architecture, Inc. | HQ003425FE544 | $397,310 | |
| HDR Architecture, Inc. | HQ003425FE548 | $189,500 | |
| Asrc Prime Constructors, LLC | W911KB23C0033 | $606,841 | |
| Procon Consulting LLC | 47PJ0024F0330 | $33,400 | |
| Procon Consulting LLC | 47PJ0024F0347 | $66,000 |
Latest 5 listed here. See the rest on GovTribe.
Similar vendors
| Vendor | Location | Primary NAICS |
|---|---|---|
| The Fields Group, LLC | Greenbelt, MD | 236220 Commercial and Institutional Building Construction |
| Riddick Fiedler Stern, P.C. | — | 541310 Architectural Services |
| WJE Engineers & Architects | Northbrook, IL | 541330 Engineering Services |
| Lera Consulting Structural Engineers, Rllp | New York, NY | 541330 Engineering Services |
| Peck, Peck And Associates, Inc. | Woodbridge, VA | 541310 Architectural Services |
About the company
Simpson Gumpertz & Heger Inc. DC Office operates exclusively as a subcontractor (100% of recent awards) in federal architecture and structural engineering services, delivering specialized design, waterproofing, and seismic analysis work to prime contractors across General Services Administration, Department of Defense, Department of the Army, and Department of the Interior projects. The vendor is a self-certified small disadvantaged business and for-profit corporate entity based in Washington, DC, competing exclusively in full-and-open federal procurements rather than set-aside categories.
Simpson Gumpertz & Heger's federal portfolio consists of thirteen subcontract awards totaling $2.1 million in combined obligated dollars across a five-year window (2020–2026), with all work routed through prime contractors including Steven Kahle Architects, Inc., HDR Architecture, Inc., Asrc Prime Constructors LLC, Asrc Builders LLC, and Procon Consulting LLC. The vendor's concrete capability set centers on structural engineering, waterproofing design, seismic analysis and peer review, and building enclosure commissioning. Representative work includes structural and waterproofing services for the Remote Delivery Facility (subcontract to HDR Architecture), seismic design for a missile field expansion (subcontract to Asrc Prime Constructors under contract W911KB 23C0031), building enclosure commissioning and measurement-and-verification services on Inflation Reduction Act exterior modernization projects at the David Skaggs Research Center in Boulder, Colorado and Building 25 at the Denver Federal Center (both under Procon Consulting), and structural engineering on federal workplace projects including the Hubert H. Humphrey Building, Wilbur J. Cohen Building, Ronald Reagan Building and International Trade Center, and Interior Department space at 1849 C Street.
Customer concentration is split between General Services Administration and Department of Defense agencies. GSA Public Buildings Service National Capital Region leads by award count with six subcontracts, followed by GSA Public Buildings Service Region 8 (two awards) and Army Corps of Engineers Engineering District Alaska (two awards), together with DoD Washington Headquarters Service (two awards) and the Department of the Interior National Park Service (one award). The top five customer slots account for 100% of recent awards. Simpson Gumpertz & Heger places seven task orders under GSA Indefinite Delivery Contract 47PF0019D0057, two under the GSA Multiple Award Schedule, and two each under PBS Region 3 Construction Management and Related Services and DoD contract HQ003425DE004.
Activity has been uneven. The vendor recorded one award in 2023, two in 2022, six in 2024, and two in 2025, with the most recent subcontract awarded in January 2026. Service Contract Inventory data captures minimal federal services activity: SCI reports 0.2 FTEs in FY2022 and 0.3 FTEs in FY2024, all as named subcontractor labor on six SCI-reportable records. The vendor operates as a feeder specialist firm, exclusively subcontracting architectural and structural services to larger design and construction primes serving federal real-property modernization and infrastructure programs, with no prime contracting or independent vehicle positioning in the federal market.
Quick answers
Is Simpson Gumpertz & Heger Inc. registered in SAM.gov?
Yes. Simpson Gumpertz & Heger Inc.'s SAM.gov registration is active through September 23, 2027.
On GovTribe
See Simpson Gumpertz & Heger Inc.'s full federal record
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
- Similar vendors