When you pick up a carton of milk, a ready-to-drink coffee, or a plant-based beverage, you probably don’t think much about ...

Pasadena-based engineering and consulting firm Tetra Tech Inc. took a major hit in the first quarter with the shutdown of its largest client, the U.S.

About Tetra Tech Tetra Tech is the leader in water, environment and sustainable infrastructure, providing high-end consulting and engineering services for projects worldwide.

About Tetra Tech Tetra Tech is the leader in water, environment and sustainable infrastructure, providing high-end consulting and engineering services for projects worldwide.

About Tetra Tech Tetra Tech is the leader in water, environment and sustainable infrastructure, providing high-end consulting and engineering services for projects worldwide.

Tetra Tech, the Pasadena-based consulting and engineering services company, has seen a sharp drop in its stock price this year after the Trump administration slashed foreign aid contracts. As of ...

Tetra Tech’s resilient revenue base drives double-digit growth. Read why TTEK stock’s strong fundamentals make it a solid pick with a 30% margin of safety.

Pasadena-based Tetra Tech adds a subscription software package that details risk maps based on climate change-enhanced disasters.

US Navy cleanup of the former Hunters Point Naval Shipyard continues, but former environmental consultant agrees to settle work related whistleblower suit to avoid protracted litigation.

Tetra Tech reports fiscal 2024 and Q4 results, with net revenue up 8% and EPS beating estimates.

Tetra Tech, Inc., a leading provider of high-end consulting and engineering services in water, environment, and sustainable infrastructure, announced today that the Defense Logistics Agency ...