Active
Overview
- Legal name
- SIMPSON GUMPERTZ & HEGER INC.
- Registered location
- WALTHAM, MA, USA
- Website
- Company website ↗
- Primary NAICS
- 541330 — Engineering Services
- Latest award activity
- Sep 3, 2026
Read company summary
SIMPSON GUMPERTZ & HEGER INC. is associated with UEI FL6ACVUJMGN9 and CAGE 4D653 in public federal records. AcornBids currently links 6 prime awards totaling $1.4M in obligations to this entity. Its largest recorded federal customer by obligations is United States Trade and Development Agency. Its recorded federal awards include work classified as Other Scientific and Technical Consulting Services; All Other Legal Services; Engineering 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 WALTHAM, MA, USA.
At a glance
Lifetime prime obligations$1.4M
Prime awards6
Awards with future end dates4
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 27, 2026. Refresh pending; these totals may be out of date.
Business information
Public SAM.gov registration details.
- Legal name
- SIMPSON GUMPERTZ & HEGER INC.
- UEI
- FL6ACVUJMGN9
- CAGE
- 4D653
- Registered address
- 480 TOTTEN POND RD, WALTHAM, MA, 02451, USA
- Registration status
- Active
- Primary NAICS
- 541330 — Engineering Services
- SAM activation
- Sep 17, 2025
- Initial registration
- Feb 25, 2002
- Entity start
- Feb 20, 1958
- SAM updated
- Sep 17, 2025
- Registration expires
- Sep 15, 2026
- Fiscal year end
- Dec 31
- Place of incorporation
- MA, 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 |
|---|---|---|---|---|
| 89603025A0005GEOTECHNICAL AND STRUCTURAL DOCUMENT REVIEW FOR LNG FACILITIES - FRONT END ENGINEERING DESIGN INFORMATION FOR PROPOSED LNG FACILITIES AND TO REVIEW FINAL DESIGN ENGINEERING… | Department of Energy | $1.8M | Sep 30, 2025 | Not available |
| 11316026P0010OASSERVICES | Executive Office of the President | $349.9K | Jun 2, 2026 | Dec 1, 2026 |
| 89603026F0030GEOTECHNICAL AND STRUCTURAL DOCUMENT REVIEW FOR LNG FACILITIES - FRONT END ENGINEERING DESIGN INFORMATION FOR PROPOSED LNG FACILITIES AND TO REVIEW FINAL DESIGN ENGINEERING… | Department of Energy | $99.8K | Jun 3, 2026 | Dec 2, 2026 |
| 15JENR23P00000281EXPERT WITNESS | Department of Justice | $421.3K | Aug 9, 2023 | Feb 1, 2028 |
| 140FHR26P0001TRUSS INVESTIGATION DESIGN SERVICES | Department of the Interior | $33.0K | Nov 13, 2025 | Jan 31, 2026 |
| 1131PL25CDS21133REGIONAL MENA-EE: NATURAL GAS AND REFINING TECHNOLOGIES DESK STUDY | United States Trade and Development Agency | $451.6K | Sep 29, 2025 | Sep 28, 2027 |
Upcoming positioning windows
Modeled recompete windows are estimates, not announced solicitations or guarantees.
Registration, certifications & contacts
| Registration evidence | Date |
|---|---|
| SAM updated | Sep 17, 2025 |
| Source loaded | Sep 26, 2026 |
| Initial registration | Feb 25, 2002 |
| Entity start | Feb 20, 1958 |
| Industry | Reported size status |
|---|---|
| 236220 — Commercial and Institutional Building Construction | Not reported |
| 541310 — Architectural Services | Not reported |
| 541330 — Engineering Services | Not reported |
| 541340 — Drafting Services | Not reported |
| 541380 — Testing Laboratories and 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 |
| 611430 — Professional and Management Development Training | Not reported |
| Contact | Role | Published contact methods | Evidence | Source date |
|---|---|---|---|---|
| NICOLE SPARKS | Government business | Contact method not published | SAM registration | Not available |
| LISA SPINAZOLA | Alternate government business | Contact method not published | SAM registration | Not available |
| LISA SPINAZOLA | Electronic business | Contact method not published | SAM registration | Not available |
| DONNA DONAHUE | Alternate electronic business | Contact method not published | SAM registration | Not available |
Registered industries
- 236220 — Commercial and Institutional Building Construction
- 541310 — Architectural Services
- 541330 — Engineering 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
Registration classifications and published certificates do not by themselves establish eligibility for a particular solicitation. View SAM source
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About SIMPSON GUMPERTZ & HEGER INC.
What products and services appear in its federal awards?
Recorded award industries: 541690 — Other Scientific and Technical Consulting Services; 541199 — All Other Legal Services; 541330 — Engineering Services.
Recorded products and services: R499 — Other Professional Services; R424 — Expert Witness; R425 — Engineering and Technical Services.
Examples from recent award records:
- GEOTECHNICAL AND STRUCTURAL DOCUMENT REVIEW FOR LNG FACILITIES - FRONT END ENGINEERING DESIGN INFORMATION FOR PROPOSED LNG FACILITIES AND TO REVIEW FINAL DESIGN ENGINEERING…
- SERVICES
These records describe federal award work, not every company capability. Review the award evidence.
Where is the company registered?
480 TOTTEN POND RD, WALTHAM, Massachusetts 02451, 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?
United States Trade and Development Agency; Department of Justice; Executive Office of the President.
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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