TERRAPHASE ENGINEERING INC is associated with UEI MFB8MBN4FX54 and CAGE 65XN1 in public federal records. AcornBids currently links 7 prime awards totaling $424.5K in obligations to this entity. Its largest recorded federal customer by obligations is Department of Transportation. Its recorded federal awards include work classified as Environmental Consulting Services; Remediation Services; Engineering Services. These categories describe the loaded award records, not a complete list of company capabilities. Its primary SAM.gov NAICS is 541620 (Environmental Consulting Services). Its public SAM.gov registration lists OAKLAND, 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 28, 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 Refresh pending; these totals may be out of date.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 |
|---|---|---|---|---|
| 6991PE21P000011ENVIRONMENTAL CONSULTING SERVICES | Department of Transportation | $288.5K | Jun 2, 2021 | Dec 5, 2026 |
| 75H70124F80002SULWHANON WELL HYDROGEOLOGICAL CONSULTING SERVICES | Department of Health and Human Services | $23.1K | Aug 29, 2024 | Dec 15, 2026 |
| 1240BE24A0015R6/R10 HAZMAT BPA SETUP | Department of Agriculture | $7.5M | Jun 10, 2024 | Not available |
| 47QRAA22D006XFEDERAL SUPPLY SCHEDULE CONTRACT | General Services Administration | $1.5M | Mar 17, 2022 | Not available |
| 1240BH25D0024PPS NWZ ARCHITECTURE AND ENGINEERING (AE) IDIQ | Department of Agriculture | $1.0K | Sep 22, 2025 | Not available |
| 1240BF25F0044ESA SERVICES FOR 20 MILE AND 18 MILE LOCATIONS ON THE CHUGACH NATIONAL FOREST | Department of Agriculture | $15.5K | Aug 18, 2025 | Oct 31, 2025 |
| 1240BD24F0080R-6 (PACIFIC NORTHWEST), ENGINEERING, CERCLA ACTIVITY UPPER GRANITE CREEK WATERSHED MINES, INTEGRATED EECA AP # 675872 | Department of Agriculture | $96.3K | Jul 19, 2024 | Aug 1, 2025 |
Modeled recompete windows are estimates, not announced solicitations or guarantees.
| Registration evidence | Date |
|---|---|
| SAM updated | May 28, 2026 |
| Source loaded | Sep 26, 2026 |
| Initial registration | Oct 18, 2010 |
| Entity start | Sep 30, 2010 |
| Industry | Reported size status |
|---|---|
| 541330 — Engineering Services | Not reported |
| 541370 — Surveying and Mapping (except Geophysical) Services | Not reported |
| 541620 — Environmental Consulting Services | Not reported |
| 562910 — Remediation Services | Not reported |
| Contact | Role | Published contact methods | Evidence | Source date |
|---|---|---|---|---|
| WILLIAM CARSON | Government business | Contact method not published | SAM registration | Not available |
| CHRISTINE SCHUMANN | Alternate government business | Contact method not published | SAM registration | Not available |
| JEFF RAINES | Electronic business | Contact method not published | SAM registration | Not available |
| WILLIAM CARSON | 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: 541620 — Environmental Consulting Services; 562910 — Remediation Services; 541330 — Engineering Services.
Recorded products and services: F103 — Water Quality Support Services; F107 — Hazardous Substance Analysis; B533 — Water Quality Studies.
Examples from recent award records:
These records describe federal award work, not every company capability. Review the award evidence.
1300 CLAY ST, OAKLAND, California 94612, United States
Registered location from SAM.gov; award performance locations may differ.
541620 — Environmental Consulting Services.
Primary SAM.gov NAICS classification.
Department of Transportation; Department of Agriculture; Department of Health and Human Services.
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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