2Suppliers
29Customers
2Debt Items
14Related Chains

Source-Backed Evidence Depth

Tetra Tech, Inc. (TTEK) is shown with relationship data already present in ChainSifter's database. Counts below come from stored supply-chain records and filing/source URLs where available; missing source URLs are not filled in or estimated.

34Total relationships
3Distinct source URLs
25High confidence
0.824Average confidence
2026-09-13Latest database update
ChainSifter does not infer unreported suppliers, customers, ownership, acquisitions, debt exposure, revenue dependency, or future supply-chain events on this public page.

Tetra Tech, Inc. Suppliers

TickerNameConfidenceEvidence
FPH Five Point Holdings, LLC 72% Reciprocal relationship from FPH graph: million square feet of commercial space. The actual commercial square footage and number of homesites are subject to change based on ultimate use and land plan…
VGZ Vista Gold Corp. 72% Reciprocal relationship from VGZ graph: ate of 0.69. 29 Table of Contents (2) Total Cash Costs is a non-U.S. GAAP financial measure; see Item 7. Management’s Discussion and Analysis of Financial Cond…

Tetra Tech, Inc. Customers

TickerNameConfidenceEvidence
USAID-COMMERCIAL-INTERNATIONAL-GROUP USAID-COMMERCIAL-INTERNATIONAL-GROUP 95% eimbursable revenue with USAID. Commercial/International Group Three Months Ended Six Months Ended March 29, 2026 March 30, 2025 Change March 29, 2026 March 30, 2025 Change $ % $ % ($ in thousands) R…
USGOV-AGENCY-FOR-INTERNATIONAL-DEVELOPMENT USGOV-AGENCY-FOR-INTERNATIONAL-DEVELOPMENT 95% USAspending awards from Agency for International Development: $165,280,172 across 2 awards. AID306C1600010 IGF::OT::IGF USAID OVERSEAS CONTRACT; 7200AA18M00014 THE PURPOSE OF GISR MENA IS TO SUSTAINA…
USGOV-DEPARTMENT-OF-DEFENSE USGOV-DEPARTMENT-OF-DEFENSE 95% USAspending awards from Department of Defense: $129,987,157 across 3 awards. FA872322F9009 SHARED EARLY WARNING SYSTEMS 3 (SEWS 3); W912EK23F0089 LAGRANGE DAM - 1200' LOCK 35-100% DESIGN.; W9128F25FA…
USGOV-DEPARTMENT-OF-STATE USGOV-DEPARTMENT-OF-STATE 95% USAspending awards from Department of State: $401,061,116 across 3 awards. 19AQMM22F3911 OFFICE OF WEAPONS REMOVAL AND ABATEMENT HAS A HUMANITARIAN DEMINING REQUEST FOR INTERNATIONAL ASSISTANCE TO UK…
USGOV-ENVIRONMENTAL-PROTECTION-AGENCY USGOV-ENVIRONMENTAL-PROTECTION-AGENCY 95% USAspending awards from Environmental Protection Agency: $108,758,470 across 2 awards. 68HE0520F0032 SUPERFUND TECHNICAL ASSESSMENT&RESPONSE TEAM (START), REGION 5, TASK ORDER FOR BULK REMOVAL ACTIVI…
DEPARTMENT-OF-DEFENSE DEPARTMENT-OF-DEFENSE 92% The Department of Defense ("DoD") accounted for 8.5%, 8.9% and 9.7% of our revenue in fiscal 2024, 2023 and 2022, respectively.
U-S-AGENCY-FOR-INTERNATIONAL-DEVELOPMENT U-S-AGENCY-FOR-INTERNATIONAL-DEVELOPMENT 92% The U.S. Agency for International Development accounted for 13.0%, 12.2% and 11.0% of our revenue in fiscal 2024, 2023 and 2022, respectively.
INTERNATIONAL-CLIENTS INTERNATIONAL-CLIENTS 90% We provide services to a diverse base of U.S. federal government, U.S. state and local government, U.S. commercial and international clients.
U-S-COMMERCIAL U-S-COMMERCIAL 90% We provide services to a diverse base of U.S. federal government, U.S. state and local government, U.S. commercial and international clients.
U-S-FEDERAL-GOVERNMENT U-S-FEDERAL-GOVERNMENT 90% We provide services to a diverse base of U.S. federal government, U.S. state and local government, U.S. commercial and international clients.
U-S-GOVERNMENT-CLIENTS U-S-GOVERNMENT-CLIENTS 90% GSG provides high-end consulting and engineering services primarily to U.S. government clients (federal, state and local).
U-S-STATE-AND-LOCAL-GOVERNMENT U-S-STATE-AND-LOCAL-GOVERNMENT 90% We provide services to a diverse base of U.S. federal government, U.S. state and local government, U.S. commercial and international clients.
AEROSPACE-INDUSTRY AEROSPACE-INDUSTRY 85% Our U.S. commercial clients include companies in the chemical, energy, pharmaceutical, retail, aerospace and automotive industries.
AUSTRALIA AUSTRALIA 85% Includes revenue generated from non-U.S. clients, primarily in Australia, Canada and the United Kingdom.
AUTOMOTIVE-INDUSTRY AUTOMOTIVE-INDUSTRY 85% Our U.S. commercial clients include companies in the chemical, energy, pharmaceutical, retail, aerospace and automotive industries.
CANADA CANADA 85% Includes revenue generated from non-U.S. clients, primarily in Australia, Canada and the United Kingdom.
CHEMICAL-INDUSTRY CHEMICAL-INDUSTRY 85% Our U.S. commercial clients include companies in the chemical, energy, pharmaceutical, retail, aerospace and automotive industries.
ENERGY-INDUSTRY ENERGY-INDUSTRY 85% Our U.S. commercial clients include companies in the chemical, energy, pharmaceutical, retail, aerospace and automotive industries.
PHARMACEUTICAL-INDUSTRY PHARMACEUTICAL-INDUSTRY 85% Our U.S. commercial clients include companies in the chemical, energy, pharmaceutical, retail, aerospace and automotive industries.
RETAIL-INDUSTRY RETAIL-INDUSTRY 85% Our U.S. commercial clients include companies in the chemical, energy, pharmaceutical, retail, aerospace and automotive industries.
UNITED-KINGDOM UNITED-KINGDOM 85% Includes revenue generated from non-U.S. clients, primarily in Australia, Canada and the United Kingdom.
U-S-GOVERNMENT-DEFENSE-AND-CIVILIAN-AGENCIES U-S-GOVERNMENT-DEFENSE-AND-CIVILIAN-AGENCIES 80% GSG supports U.S. government defense and civilian agencies with services in w
BLUEWATER-FEDERAL-SOLUTIONS-INC BLUEWATER-FEDERAL-SOLUTIONS-INC 62% flect the extensive technical knowledge of the acquired workforces, the anticipated synergies in data analytics, cybersecurity and digital transformation services, and collective reputations of these…
COMMERCIAL-INTERNATIONAL-GROUP COMMERCIAL-INTERNATIONAL-GROUP 62% 91) (347) (4.1) (15,966) (15,709) (257) (1.6) Other non-operating income 4,651 — 4,651 NM 12,361 — 12,361 NM Income before income tax expense 127,336 31,112 96,224 309.3 268,912 46,420 222,492 479.3 …
GENERAL-OVERVIEW-TETRA-TECH-INC GENERAL-OVERVIEW-TETRA-TECH-INC 62% Item 1A. Risk Factors,” and elsewhere herein. Therefore, actual results may differ materially and adversely from those expressed in any forward-looking statements. We undertake no obligation to revis…
PROVIDENCE-CONSULTING-GROUP-PTY-LTD PROVIDENCE-CONSULTING-GROUP-PTY-LTD 62% ven that our previous or future acquisitions will be successful or will not have a material adverse effect on our financial position, results of operations or cash flows. All acquisitions require the…
RPS-GROUP RPS-GROUP 62% rimarily related to the foreign currency translation adjustments which resulted from our foreign subsidiaries with functional currencies that are different than our reporting currency. We per form ou…
SAGE-GROUP-HOLDINGS SAGE-GROUP-HOLDINGS 62% ue of contingent earn-out obligations, with a total maximum of $ 97 million based on the achievement of specified operating income targets in each of the three years following the acquisition date. T…
TETRA-TECH-EC-INC TETRA-TECH-EC-INC 62% ) ( 1,045,272 ) ( 1,789,568 ) ( 1,039,983 ) ( 951,219 ) ( 1,991,202 ) Segment operating income 146,270 150,971 297,241 171,696 138,137 309,833 Reconciliation of profit (segment operating income): Oth…

Tetra Tech, Inc. Debt Obligations

InstrumentDescriptionConfidenceEvidence
TTEK-DEBT Debt stack $1.1B 90% Market cache reports total debt of $1.1B.
TTEK-DEBT-13136 Xbrl Convertible 90% xbrl convertible detail from xbrl 2025-09-28.

Tetra Tech, Inc. Acquisitions

No acquisitions on recordNo completed or pending acquisitions found in our database for Tetra Tech, Inc..

Tetra Tech, Inc. Ownership

HolderNameConfidenceEvidence
TTEK-OWNER-BLACKROCK-INC BlackRock, Inc. 90% 13F overlay lists BlackRock, Inc. as top holder; 595 tracked holders.

Tetra Tech, Inc. Extended Supply Chain Network

TickerNameChain IndexHopsRelationship Types
FPH Five Point Holdings, LLC 100.00 1 ['supplier']
VGZ Vista Gold Corp. 100.00 1 ['supplier']
CANADA CANADA 54.19 1 ['receiving']
EGY VAALCO Energy, Inc. 50.00 2
BGS B&G Foods, Inc. 50.00 2
SPRS Surge Components, Inc. 50.00 2
UPS United Parcel Service, Inc. 50.00 2
CV CapsoVision, Inc. 50.00 2
GLGI Greystone Logistics, Inc. 50.00 2
OBDC Blue Owl Capital Corporation 50.00 2
OWL Blue Owl Capital Inc. 50.00 2
PPTA Perpetua Resources Corp. 50.00 2
WPM Wheaton Precious Metals Corp. 50.00 2
AGCC Agencia Comercial Spirits Ltd 50.00 2
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TTEK
Unlock TTEK Supply Chain Data
Verified relationships include:
FPHFive Point Holdings, LLCSupplier72%
VGZVista Gold Corp.Supplier72%
USAID-COMMERCIAL-INTERNATIONAL-GROUPUSAID-COMMERCIAL-INTERNAT…Customer95%
USGOV-AGENCY-FOR-INTERNATIONAL-DEVELOPMENTUSGOV-AGENCY-FOR-INTERNAT…Customer95%
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