Tetra Tech, Inc. provides consulting and engineering services that focuses on water, environment, and sustainable infrastructure. in the United States and internationally. The company operates through two segments, Government Services Group (GSG) and Commercial/International Services Group (CIG). The GSG segment offers early data collection and monitoring, data analysis and information management, science and engineering applied research, engineering design, project management, and operations and maintenance services; and climate change and energy management consulting, as well as greenhouse gas inventory assessment, certification, reduction, and management services. This segment serves federal, state, and local governments; and development agencies in water resources analysis and water management, environmental monitoring, data analytics, government consulting, waste management, and a range of civil infrastructure master planning and engineering design markets. The CIG segment provides early data collection and monitoring, data analysis and information management, feasibility studies and assessments, science and engineering applied research, engineering design, project management, and operations and maintenance services; and environmental remediation and reconstruction services, industrial water treatment, and water reuse services; and engineering services for a wide range of clients with specialized needs, such as data centers, advanced manufacturing, security systems, training and audiovisual facilities, clean rooms, laboratories, medical facilities, and disaster preparedness facilities. This segment serves natural resources, energy, and utilities markets, as well as sustainable infrastructure master planning and engineering design for facilities, transportation, and local development projects. Tetra Tech, Inc. was founded in 1966 and is headquartered in Pasadena, California.

Period	TotalRevenue
2016-09-30	$1.93B
2017-09-30	$2.03B
2018-09-30	$2.96B
2019-09-30	$3.11B
2020-09-30	$2.99B
2021-09-30	$3.21B
2022-09-30	$3.50B
2023-09-30	$4.52B
2024-09-30	$5.20B
2025-09-30	$5.44B

	A	B	C	D
1	Symbol	Price	Change	Volume
2	TTEK	$30.85	-0.29%	3.39M
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