GovChime
UEI: MFB8MBN4FX54 • CAGE: 65XN1

TERRAPHASE ENGINEERING INC (CA)

Registration and award facts

SAM.gov registration as of

Net obligations since FY2018
$621.96K
$621,958under this UEI
FY2026 obligations
-$44.95K
-$44,952Provisional
Awards and orders
10
with positive net obligations5 IDV vehicles held
Latest action
Oct 7, 2026
SAM.gov registration
Active
Registration expiration date May 26, 2027

Registration

Entity structure
Corporate Entity (Not Tax Exempt)
Business start date
Sep 30, 2010 (16 years)
Location
Oakland, CA
State of incorporation
California
Purpose of registration
All Awards
Website
terraphase.com

† FY2026 obligations (provisional; DoD awards signed after Jul 25, 2026 are not yet public).

All federal contractors in CaliforniaHow these figures are built

Source: SAM.gov entity registration and FPDS contract actions recorded under UEI MFB8MBN4FX54. GovChime does not check exclusions.

Performance

Net obligations recorded under this UEI since FY2018. Top lists show the largest five by share of this vendor's net obligations; the shares do not sum to 100%.

Net obligations by fiscal year of action

  • FY2026: -$44,952 (de-obligation) (provisional)
  • FY2025: $132,342
  • FY2024: $186,644
  • FY2023: -$35,199 (de-obligation)
  • FY2022: $118,627
  • FY2021: $97,779
  • FY2020: $103,116
  • FY2019: $58,600
Show all 9 years
  • FY2018: $5,000

Total across 9 fiscal years: $621,958

Net de-obligation in that fiscal year (obligations withdrawn).

Top awarding agencies

Top awarding sub-agencies

Top NAICS by obligations

Top product and service codes by obligations

  • F103Environmental systems protection- water quality support$288,519, 46.4%
  • F107Environmental systems protection- toxic and hazardous substance analysis$96,321, 15.5%
  • B510Special studies/analysis- environmental assessments$79,334, 12.8%
  • C215Architect and engineering- general: production engineering$69,602, 11.2%
  • R425Support- professional: engineering/technical$56,600, 9.1%

Capabilities

SBA certifications

No certification in the SBA profile data.

Capabilities & Services

Environmental geotechnical engineering consulting

Contracts

Latest awards and orders

  1. 47QRAA22D006XFederal supply schedule (FSS)VehicleGeneral Services AdministrationFederal Acquisition ServiceLatest action
  2. 6991PE21P000011Purchase orderDepartment of TransportationMaritime AdministrationLatest action
  3. 75H70124F80002Delivery orderunder a federal supply schedule (FSS)Department of Health and Human ServicesIndian Health ServiceLatest action
  4. 1240BE24A0015Blanket purchase agreement (BPA)VehicleDepartment of AgricultureForest ServiceLatest action
  5. 1240BH25D0024Indefinite delivery contract (IDC)VehicleDepartment of AgricultureForest ServiceLatest action
  6. 1240BF25F0044BPA callunder a blanket purchase agreement (BPA)Department of AgricultureForest ServiceLatest action
  7. 1240BD24F0080BPA callunder a blanket purchase agreement (BPA)Department of AgricultureForest ServiceLatest action
  8. 15JC1V22P00000338Purchase orderDepartment of JusticeOffices, Boards and DivisionsLatest action
  9. 1240BD22F0010Delivery orderunder an indefinite delivery contract (IDC)Department of AgricultureForest ServiceLatest action
  10. 12046W18D0008Indefinite delivery contract (IDC)VehicleDepartment of AgricultureForest ServiceLatest action

Contact Info

As of . Source: SAM.gov Points of Contact.

SAM.gov registration for TERRAPHASE ENGINEERING INC lists a physical address and a separate mailing address, along with 6 verified points of contact. Past Performance contacts are the recommended outreach channel for due-diligence references; Government Business contacts handle procurement-facing correspondence.

Source: SAM.gov entity registration. Contacts displaying numeric or placeholder names have been filtered (defense-in-depth).

Physical Address

1300 CLAY ST

STE 1000

OAKLAND, CA, 94612

USA

Mailing Address

1300 Clay St Ste 1000

Oakland, CA, 94612

USA

Government Business Contact

William Carson

1300 Clay STREET

SUITE 1000

OAKLAND, CA, 94612

USA

Electronic Business Contact

JEFF RAINES

Vice President

1300 Clay STREET

SUITE 1000

OAKLAND, CA, 94612

USA

Past Performance Contact

John Kelleher

CFO

1300 Clay Street

Suite 1000

Oakland, CA, 94612

USA

Government Business Alternate Contact

CHRISTINE SCHUMANN

100 Canal Pointe Blvd.

SUITE 110

PRINCETON, NJ, 08540

USA

Electronic Business Alternate Contact

WILLIAM CARSON

1300 Clay STREET

SUITE 1000

OAKLAND, CA, 94612

USA

Past Performance Alternate Contact

Jeffery Raines

Secretary

1300 Clay Street

Suite 1000

Oakland, CA, 94612

USA

Additional Details

As of . Source: SAM.gov Entity Registration.

TERRAPHASE ENGINEERING INC has no active federal suspension or debarment on record in SAM.gov. Current SAM.gov registration expires May 26, 2027.

Source: SAM.gov entity registration (FAR responses, registration status). Always verify active exclusions against the authoritative record on SAM.gov before contract award.

Compliance & Risk Assessment

Source: SAM.gov FAR responses

Suspension/Debarment Status

SAM.gov registration reports no active exclusion

Public Display

Entity information is publicly displayed

Disaster Relief Registry

Registered for disaster relief contracting

Bonding Information

No bonding information provided

EDI

Not declared in SAM.gov

Business Structure

Source: SAM.gov
Profit Structure:For Profit Organization
Organization:Subchapter S Corporation

Registration Details

Source: SAM.gov

Initial Registration

Oct 18, 2010

Last Update

May 28, 2026

Registration Activation

Active — May 28, 2026

Fiscal Year End

12/31

Country of Incorporation

USA

Congressional District

12

Other contractors in California with primary NAICS 541620