Tetra Tech Inc
tetratech.comTetra Tech Inc (NASDAQ: TTEK) is an engineering and consulting services company that provides water, environment, and sustainable infrastructure services to government and institutional clients. Revenue comes from fee-based professional services billed on an hourly-fee basis or percentage-of-completion basis under contracts, purchase orders, and retainer letters, covering projects from early studies through operations and maintenance. The company operates through two reportable segments: Government Services Group (GSG), which serves U.S. federal, state, and local government clients as well as international development agencies, focusing on water resources, environmental monitoring, data analytics, disaster management, and civil infrastructure; and a second segment supporting commercial and international clients. Tetra Tech also develops subscription software offerings under its Tetra Tech Delta technology platform. The company grows through acquisitions of privately and publicly held firms to expand geographies, technologies, and client bases. The 10-K covers the fiscal year ended September 28, 2025, filed November 20, 2025.
Products & Services
Consulting and engineering services spanning water resources analysis, water management, environmental monitoring, data analytics, government consulting, waste management, civil infrastructure master planning, flood protection, solid waste engineering, disaster management, information technology services, and resilient engineering design for facilities and transportation. Tetra Tech Delta subscription software is a distinct product line.
Revenue Model
Fee-based professional services billed on an hourly-fee basis or percentage-of-completion basis as projects progress, under written contracts, purchase orders, or retainer letters. Subscription software offerings represent an additional revenue stream through the Tetra Tech Delta platform.
Customers & Markets
Primary customers include U.S. federal civilian and defense agencies, state and local governments, municipal clients, and international development agencies. End markets include water infrastructure, environmental remediation, flood protection, sustainable infrastructure, solid waste, disaster management, and information technology for government clients.
Geographic Exposure
Primary operations serve U.S. government clients domestically, with international presence through work for international development agencies and foreign operations. Specific revenue percentages by geography are not detailed in the provided filing excerpts.
Financial Snapshot
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