MAFFEI STRUCTURAL ENGINEERING is associated with UEI N9XUXMJNZMX9 and CAGE 7A2P2 in public federal records. AcornBids currently links 1 prime award totaling $26.7K in obligations to this entity. Its largest recorded federal customer by obligations is Department of the Interior. Its recorded federal awards include work classified as 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 SAN FRANCISCO, CA, USA.
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 Refresh pending; these totals may be out of date.
Public SAM.gov registration details.
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.
Prime contract awards. Select an award to review its history and source evidence.
| Award / description | Awarding agency | Obligations | Start date | End date |
|---|---|---|---|---|
| 140FGA25F0036TO#5 FOR HOTCHKISS NFH OFFICE AND HATCHERY BUILDING, TIER 1 EVAL | Department of the Interior | $26.7K | Sep 11, 2025 | Apr 8, 2026 |
| Registration evidence | Date |
|---|---|
| SAM updated | May 11, 2026 |
| Source loaded | Sep 26, 2026 |
| Initial registration | Dec 10, 2014 |
| Entity start | Jan 1, 2014 |
Registration classifications: Self Certified Small Disadvantaged Business. These are separate from the reported certificates above.
| Industry | Reported size status |
|---|---|
| 541330 — Engineering Services | Not reported |
| Contact | Role | Published contact methods | Evidence | Source date |
|---|---|---|---|---|
| NOELLE YUEN | Government business | Contact method not published | SAM registration | Not available |
| JOSEPH MAFFEI | Electronic business | Contact method not published | SAM registration | Not available |
| NOELLE YUEN | Alternate electronic business | Contact method not published | SAM registration | Not available |
Registration classifications and published certificates do not by themselves establish eligibility for a particular solicitation. View SAM source
Explore the customer, work and award-size evidence behind each match.
Recorded award industries: 541330 — Engineering Services.
Recorded products and services: C211 — Architect - Engineer Services (including landscaping, interior layout, and designing).
Examples from recent award records:
These records describe federal award work, not every company capability. Review the award evidence.
98 BATTERY ST STE 300, SAN FRANCISCO, California 94111, United States
Registered location from SAM.gov; award performance locations may differ.
541330 — Engineering Services.
Primary SAM.gov NAICS classification.
Department of the Interior.
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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