TETRA TECH, INC. (CA)
Registration and award facts
SAM.gov registration as of
- Net obligations since FY2008
- $1.70B
- $1,698,843,706under this UEI
- FY2026 obligations
- $92.82M†
- $92,819,813Provisional
- Awards and orders
- 1,162
- with positive net obligations91 IDV vehicles held
- Latest action
- Nov 2, 2026
- SAM.gov registration
- Active
- Registration expiration date Aug 11, 2027
Registration
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Business start date
- Feb 1, 1988 (38 years)
- Location
- Pasadena, CA
- State of incorporation
- Delaware
- Purpose of registration
- All Awards
- Website
- tetratech.com
† FY2026 obligations (provisional; DoD awards signed after Aug 7, 2026 are not yet public).
Contract actions that the Department of Defense both funds and awards are withheld at the source for 90 days, so DoD awards signed after Aug 7, 2026 are not yet public.
Source: SAM.gov entity registration and FPDS contract actions recorded under UEI LMRMKLLL3LG5. GovChime does not check exclusions.
Performance
Net obligations recorded under this UEI since FY2008. 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: $92,819,813 (provisional)
- FY2025: $202,372,659
- FY2024: $167,525,961
- FY2023: $232,986,461
- FY2022: $186,245,989
- FY2021: $109,674,851
- FY2020: $146,990,287
- FY2019: $94,501,461
Show all 19 yearsEarlier years (FY2008–FY2018)
- FY2018: $51,078,364
- FY2017: $25,238,471
- FY2016: $106,801,402
- FY2015: $7,649,580
- FY2014: $11,426,386
- FY2013: $24,066,112
- FY2012: $46,386,019
- FY2011: $46,293,328
- FY2010: $40,390,124
- FY2009: $60,976,207
- FY2008: $45,420,232
Total across 19 fiscal years: $1,698,843,706
Top awarding agencies
- Department of State$605,118,435, 35.6%
- Department of Defense$496,246,369, 29.2%
- Agency for International Development$448,825,979, 26.4%
- Environmental Protection Agency$56,917,703, 3.4%
- Department of Homeland Security$26,039,497, 1.5%
Top awarding sub-agencies
- Department of State$605,118,435, 35.6%
- Agency for International Development$448,825,979, 26.4%
- Department of the Air Force$278,331,389, 16.4%
- Department of the Army$174,090,359, 10.2%
- Environmental Protection Agency$56,917,703, 3.4%
Top NAICS by obligations
- 541330Engineering services$764,729,264, 45.0%
- 562910Remediation services$701,744,749, 41.3%
- 541620Environmental consulting services$166,018,968, 9.8%
- 541990All other professional, scientific, and technical services$29,913,517, 1.8%
- 237990Other heavy and civil engineering construction$14,173,981, 0.8%
Top product and service codes by obligations
- R408Support- professional: program management/support$404,678,540, 23.8%
- R499Support- professional: other$264,759,105, 15.6%
- R425Support- professional: engineering/technical$160,972,711, 9.5%
- 7010Information technology equipment system configuration$147,171,007, 8.7%
- F999Other envir svc/stud/sup$142,095,269, 8.4%
Capabilities
NAICS codes
- 541330Military and Aerospace Equipment and Military Weapons(primary)
- 541519Information Technology Value Added Resellers
- 541511Custom Computer Programming Services
- 541380Testing Laboratories and Services
- 541620Environmental Consulting Services
- 562112Hazardous Waste Collection
Show all 23 NAICS codes17 more NAICS codes
- 541611Administrative Management and General Management Consulting Services
- 541820Public Relations Agencies
- 541715Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
- 541420Industrial Design Services
- 541990All Other Professional, Scientific, and Technical Services
- 712120Historical Sites
- 611430Professional and Management Development Training
- 562910Remediation Services
- 518210Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services
- 334511Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
- 541618Other Management Consulting Services
- 541512Computer Systems Design Services
- 541513Computer Facilities Management Services
- 541320Landscape Architectural Services
- 541310Architectural Services
- 541690Other Scientific and Technical Consulting Services
- 237990Other Heavy and Civil Engineering Construction
SBA certifications
No certification in the SBA profile data.
Contracts
Latest awards and orders
- 19AQMM24F0007Delivery orderunder an indefinite delivery contract (IDC)Department of StateLatest action
- 89233126FNA000218BPA callunder a blanket purchase agreement (BPA)Department of EnergyLatest action
- 80KSC025F0008BPA callunder a blanket purchase agreement (BPA)National Aeronautics and Space AdministrationLatest action
- HHSN316201200029WGovernment-wide acquisition contract (GWAC)VehicleDepartment of Health and Human ServicesNational Institutes of HealthLatest action
- 70Z04525FKODI0002Delivery orderunder a federal supply schedule (FSS)Department of Homeland SecurityU.S. Coast GuardLatest action
- 47QRCA25DU329Indefinite delivery contract (IDC)VehicleGeneral Services AdministrationFederal Acquisition ServiceLatest action
- GS00F168CAFederal supply schedule (FSS)VehicleGeneral Services AdministrationFederal Acquisition ServiceLatest action
- 68HERL26F0012BPA callunder a blanket purchase agreement (BPA)Environmental Protection AgencyLatest action
- 80NSSC27A0007Blanket purchase agreement (BPA)VehicleNational Aeronautics and Space AdministrationLatest action
- 47PB0125A0002Blanket purchase agreement (BPA)VehicleGeneral Services AdministrationPublic Buildings ServiceLatest action
Contact Info
As of . Source: SAM.gov Points of Contact.
SAM.gov registration for TETRA TECH, 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 without a real name are not shown.
Physical Address
3475 E FOOTHILL BLVD
PASADENA, CA, 91107
USA
Mailing Address
3475 EAST FOOTHILL BOULEVARD
PASADENA, CA, 91107
USA
Government Business Contact
BARBARA PETERSEN
DIRECTOR
3475 EAST FOOTHILL BOULEVARD
Pasadena, CA, 91107
USA
Electronic Business Contact
AMANDA WESTON
Associate Director
5383 HOLLISTER AVE.
STE. 130
Santa Barbara, CA, 93111
USA
Past Performance Contact
BARBARA PETERSEN
Director
3475 EAST FOOTHILL BOULEVARD
Pasadena, CA, 91107
USA
Government Business Alternate Contact
DOINA A ATWATER
14151 NEWBROOK DRIVE
STE. 400, 450
Chantilly, VA, 20151
USA
Electronic Business Alternate Contact
BARBARA A PETERSEN
Director
3475 EAST FOOTHILL BOULEVARD
Pasadena, CA, 91107
USA
Past Performance Alternate Contact
HA LY
Finance Manager
301 E. VANDERBILT WAY
STE. 450
San Bernardino, CA, 92408
USA
Additional Details
As of . Source: SAM.gov Entity Registration.
TETRA TECH, INC. has no active federal suspension or debarment on record in SAM.gov. Current SAM.gov registration expires August 11, 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 responsesSuspension/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.govRegistration Details
Source: SAM.govInitial Registration
Last Update
Registration Activation
Fiscal Year End
Country of Incorporation
Congressional District
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