Tetra Tech, Inc.

General Tetra Tech, Inc. is a global provider of high-end consulting and engineering services focused on water, environment, and sustainable infrastructure. The company offers innovative solutions to public and private clients, typically starting projects by identifying technical solutions and developing execution plans. Tetra Tech provides sustainable and resilient solutions for complex client needs. Engineering News-Record (ENR) has ranked Tetra Tech #1 in Water Treatment and Desalination for 12 consecutive years. In 2025, the company was also ranked #1 in consulting studies, environmental management, environmental science, wind power, hydro plants, site assessment and compliance, and green government offices. ENR also placed Tetra Tech in the Top 10 for categories such as dams and reservoirs, marine and port facilities, power, solar power, solid waste, chemical and soil remediation, and hazardous waste. The company's growth over 50 years has been supported by its reputation for high-end consulting and engineering services and its ability to develop water and environmental management solutions. Its market-leading climate mitigation and adaptation services address challenges related to coastal flooding, water security, energy transition, and biodiversity protection. In fiscal 2025, Tetra Tech worked on over 100,000 projects in more than 100 countries on all seven continents, with more than 25,000 associates. The company utilizes domain experts across multiple disciplines, supported by advanced analytics, artificial intelligence (AI), machine learning, and digital technology solutions.