Industry-leading expertise and a passion for our work

Tetra Tech is a leading, global provider of consulting and engineering services. We are differentiated by Leading with Science® to provide innovative technical solutions to our clients. We support global commercial and government clients focused on water, environment, sustainable infrastructure, renewable energy, and international development. With 30,000 associates worldwide, Tetra Tech provides clear solutions to complex problems.

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Inclusion & Opportunity
Tetra Tech Recognizes International Women in Engineering Day 2020
Tetra Tech is supporting International Women in Engineering Day (INWED) 2020 on June 23rd to inspire girls and celebrate women in engineering careers. We are highlighting our female engineers from across our global operations and sharing how they #ShapeTheWorld.
Environment
#TtInspires: Shaun McKay, Environmental Scientist
Shaun has a bachelor’s degree in Environmental Science from the University of Newcastle and is excited about the opportunity Coffey, a Tetra Tech Company, gave him to develop professionally after a hiatus from consulting. We talked with Shaun as part of our #TtInspires campaign celebrating the passion of Tetra Tech employees. Follow #TtInspires on social media for more stories.
AI & Technology
Tetra Tech’s Jason J. Cook Discusses the Importance of Industrial Control System Cybersecurity
Jason Cook is a senior project manager with Tetra Tech and is a Professional Engineer and Uptime Institute Accredited Tier Designer for critical infrastructure supporting data centers and critical missions. He has nearly 25 combined years of experience as an active duty Air Force Civil Engineer Officer, Air Force Civil Servant, and project manager for Tetra Tech. His expertise is in highly available critical infrastructure systems after eight years serving as the engineer responsible for the survivability, endurability, and availability of the infrastructure in Cheyenne Mountain Air Force Station’s (CMAFS) underground complex.

Environment
Tetra Tech’s Dr. Sarah Richards Discusses Solutions to PFAS Chemical Contamination Problems
Dr. Sarah Richards a preeminent leader in per-and poly-fluoroalkyl substances (PFAS) chemical contamination, helping Australian Department of Defence (Defence) clients find solutions to address their contamination problems.
AI & Technology
Tetra Tech’s Vincent Holloway Discusses Advanced IT Solutions for the U.S. Department of Defense
Vincent Holloway is Vice President, Defense Information Technology (IT) Services in Tetra Tech’s Arlington, Virginia, office. He has more than 30 years of experience working with the U.S. Department of Defense (DoD) in various technical, management, and leadership positions.
Philanthropy
Rod Rose, Bushfire Management Expert
Rod Rose is Senior Principal, Bushfire Management with Eco Logical Australia, A Tetra Tech Company, based in Huskisson, New South Wales, Australia. He has more than 45 years of experience in wildfire planning and management and is a recognized leader in Australia in this, as well as related fields.
AI & Technology
Tetra Tech’s Craig Gianoli Discusses Designing Secure Mission Critical Facilities
Craig is the Sydney-based market sector lead for mission-critical services at Norman Disney & Young, A Tetra Tech Company (NDY), part of the Tetra Tech High Performance Buildings Group. He supports the business with his technical expertise in high-voltage networks, and fault-tolerant and renewable energy systems and microgrids.
AI & Technology
Tetra Tech’s Terrence Blair Applies Information Technology Strategies to Solve Business Problems for Federal Clients
Terrence Blair is the Chief Technology Officer for the federal information technology (IT) programs in Tetra Tech’s Arlington, Virginia, office. Terrence has 30 years of experience working in the IT field in various technical, management, and strategic roles and has been with Tetra Tech for more than 10 years.
AI & Technology
Tetra Tech’s Brian Thorne Discusses Planning and Designing Military Infrastructure
Brian Thorne, an expert in military planning, design, and construction oversight, has nearly 25 years of experience leading infrastructure projects. A retired Army Major with 22 years of service with the Army National Guard, Brian now provides exceptional leadership and project management skills to his Department of Defense (DoD) clients.
Environment
Tetra Tech GIS Analyst and Team Complete Tidal Flooding Awareness Project
Kellie Burdick, a Tetra Tech GIS analyst and Old Dominion University (ODU) masters student, led a group of fellow students, staff, and researchers to complete the Blue Line Project in Norfolk, Virginia, on October 27, 2019.

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