Tetra Tech’s One Water approach centers on developing resilient, sustainable water systems that can withstand the pressures of climate change, population growth, and environmental degradation. Their work spans the entire water cycle—from the moment water interacts with the natural environment to the point it reaches communities and ecosystems. They design living shorelines that protect coasts, build intelligent water management systems that mitigate flooding and pollution, and create innovative groundwater and treatment technologies that reduce dependency on imported water supplies. Each project brings together scientific rigor, advanced engineering, and deep local knowledge to produce solutions that strengthen long‑term water resilience.

Beyond individual projects, Tetra Tech’s One Water practice integrates digital tools, predictive analytics, and emerging treatment technologies to address increasingly complex water challenges such as PFAS contamination, wastewater resiliency, microplastic risks, and stormwater impacts. Their solutions extend across drinking water, wastewater, stormwater, water reuse, and resource management, emphasizing systems that are efficient, adaptive, and environmentally responsible. Whether supporting coastal regions, urban communities, or large‑scale utilities, the One Water approach ensures that water is captured, treated, distributed, and reused in ways that protect ecosystems while meeting human and industrial needs.

Tetra Tech’s data center solutions focus on accelerating the delivery of high‑performance, energy‑efficient, and sustainable digital infrastructure. Their approach blends engineering expertise, regulatory fluency, and advanced modeling to help clients build or convert facilities with optimal power and water usage. By prioritizing speed‑to‑market, they reduce delays associated with permitting, design, and utility coordination, while improving power usage effectiveness (PUE) and water usage effectiveness (WUE). From early feasibility assessments through full lifecycle design and delivery, Tetra Tech supports organizations as they plan, justify, and execute complex data center programs in fast‑evolving digital environments.

Their solutions also apply cutting‑edge digital technologies—including AI, machine learning, and digital twins—to simulate scenarios, refine performance, and reduce both capital and operating expenditures. They complement these tools with rigorous energy modeling, lifecycle cost analysis, and control system engineering. Tetra Tech additionally designs robust power systems using both conventional and renewable approaches, ensuring uninterrupted uptime and improved sustainability at scale. Their multidisciplinary teams bring together program management, industrial controls, safety‑in‑design, and advanced instrumentation to help clients develop next‑generation data centers that meet demanding performance, resilience, and environmental benchmarks.

Tetra Tech serves a broad spectrum of defense‑related clients whose missions demand robust engineering, environmental stewardship, and resilient infrastructure. We partner with the U.S. Department of Defense, the Australian Defence Force, the UK Ministry of Defence, and numerous global defense and security agencies to support land, air, naval, and space operations. Our work ranges from rebuilding aging American infrastructure to supporting military readiness worldwide with master planning, environmental compliance, resource protection, and secure technology integration.

With more than 150 contracts active across 150+ countries, our teams deliver solutions in remote, austere, and high‑security environments where mission assurance is paramount. Whether designing expeditionary airfields, supporting cyber‑secure IT environments, or conducting environmental remediation tied to defense activities, we help defense organizations maintain operational capability while meeting sustainability, resilience, and regulatory expectations. Our worldwide presence ensures defense partners receive context‑appropriate, locally informed expertise rooted in global technical leadership.

Tetra Tech’s Digital Systems services support organizations that depend on complex, high‑value infrastructure across multiple industries. We help utilities, manufacturing companies, energy providers, and public‑sector clients modernize their operations by connecting enterprise technologies with field‑level systems and engineering assets. Our digital frameworks enhance system reliability, reduce operational risk, and ensure that critical infrastructure—whether in water, energy, transportation, manufacturing, or municipal operations—continues to function at peak performance. With deep domain expertise across these sectors, we design solutions that adapt to the regulatory, environmental, and operational challenges unique to each market.

Across global water systems, industrial networks, municipal infrastructure, and energy delivery systems, we provide the digital backbone needed to sustain long‑term resilience. Our clients rely on us to optimize control systems, secure operational technology environments, and turn complex data streams into actionable intelligence. By integrating automation, cybersecurity, and enterprise analytics, we empower industries to operate more efficiently, respond faster to system threats or failures, and plan confidently for the future. This cross‑sector impact positions Tetra Tech as a trusted partner for digital modernization in environments where reliability, sustainability, and public safety are mission‑critical.

Tetra Tech delivers disaster and emergency management services to communities, government agencies, and organizations across the public and private sectors. Our clients rely on us to help them prepare for natural and human‑caused events, strengthen resilience, and accelerate recovery in the aftermath of hurricanes, floods, wildfires, pandemics, and other high‑impact disruptions. We support state and local governments, federal agencies, hospitals, universities, and critical infrastructure operators—helping them protect people, facilities, and essential services. Our work spans communities of every size and geography, from coastal regions facing climate‑driven hazards to inland municipalities requiring long‑term rebuilding and hazard mitigation planning.

Because disasters impact nearly every aspect of civic life, we partner closely with public institutions to restore essential systems—public safety, infrastructure, transportation, and environmental resources. We guide government entities through the complex landscape of FEMA, HUD, and hazard‑mitigation funding, ensuring they recover efficiently while building resilience into future operations. Our data‑driven frameworks and science‑based methodologies allow us to deliver outcomes that support public welfare, ensuring communities are not only restored but strengthened to withstand future challenges.

Tetra Tech serves a broad range of industries that depend on resilient, compliant, and sustainable environmental practices. Our work supports utilities, water companies, industrial operators, infrastructure developers, government agencies, and private‑sector organizations seeking to protect natural resources and meet evolving regulatory standards. From improving river health with nature‑based solutions to advising multinational companies on climate‑related risks and ESG disclosures, we help organizations navigate the complexities of environmental stewardship. Our multidisciplinary teams ensure that environmental responsibilities are met efficiently, sustainably, and with long‑term community benefits in mind.

We also partner with clients involved in energy development, coastal and marine infrastructure, contaminated site cleanup, conservation, biodiversity management, and environmental planning. Whether supporting permitting efforts for renewable energy projects, restoring ecosystems, mitigating hazardous waste liabilities, or developing climate adaptation strategies, our services enable industries to drive growth while safeguarding natural systems. Through our global presence and technical depth, we empower clients across sectors to achieve regulatory compliance, environmental resilience, and sustainable operational excellence.

Tetra Tech’s Federal IT practice serves U.S. federal agencies, military departments, intelligence organizations, and command structures that rely on secure, resilient, and mission‑critical technology environments. Our work supports agencies across aviation, defense, homeland security, health, transportation, energy, and civilian oversight—delivering digital solutions that strengthen national missions. By integrating modern cloud services, cybersecurity protections, enterprise data management, and resilient IT architectures, we help federal organizations improve service delivery, safeguard national assets, and modernize legacy systems while meeting evolving regulatory and operational requirements.

Our services also support specialized mission domains such as air traffic infrastructure, defense IT modernization, federal cybersecurity posture, enterprise service delivery, data transparency, and digital citizen services. With more than 55 departments and commands served—including DoD, DHS, FAA, GSA, DOE, HHS, VA, Treasury, and the U.S. House of Representatives—we provide tailored solutions built around each agency’s unique mission needs. Our teams understand the operational tempo, security requirements, and interagency coordination required in the federal space, enabling us to deliver technology solutions that directly support national interests and public‑sector outcomes

Tetra Tech’s High Performance Buildings practice serves a diverse portfolio of industries that rely on sustainable, resilient, and high‑performing built environments. We partner with clients across defense, healthcare, education, transportation, commercial offices, residential, sports and entertainment, science, and advanced manufacturing to design buildings that enhance user experience while minimizing environmental impact. Our work helps organizations adapt to changing workplace demands, decarbonize facilities, reduce operational costs, and meet evolving compliance standards.

Across every industry sector we support, our focus remains on delivering high‑value, human‑centric spaces that are efficient, comfortable, and future‑ready. Whether reimagining workplaces for hybrid models, creating cutting‑edge research environments, designing next‑generation data centers, or developing low‑carbon civic and cultural spaces, we ensure our buildings align with our clients’ long‑term missions. Our integrated approach allows us to address the unique challenges of each industry while providing solutions that elevate performance and drive meaningful sustainability outcomes.

We partner primarily with public‑sector institutions and development finance and donor organizations—national ministries, local governments, and sector agencies—to improve service delivery, strengthen policy and regulatory frameworks, and scale inclusive economic opportunities. Our projects also collaborate with civil society, local private sector actors, and market enablers to catalyze growth, enhance accountability, and expand essential services in communities worldwide.

Because development challenges are inherently cross‑sectoral, our work frequently spans environment and natural resources, water and sanitation, energy for development, health, education, and land and resource governance—all delivered through public systems and community institutions. This breadth allows us to align investments with national strategies while building local capacity for sustained, high‑quality service delivery.

At Tetra Tech, we apply more than six decades of scientific, engineering, and environmental expertise to help mining and metals processing clients develop responsible, efficient, and future‑ready operations. Our specialists support every phase of the mining life cycle—from early geological assessment and metallurgical design through construction, production, and long‑term monitoring. We combine geotechnical, water management, process engineering, and environmental science to create solutions that improve performance, enhance safety, and minimize environmental footprint. Whether designing extraction systems for critical minerals, developing mine plans that meet today’s stringent sustainability expectations, or implementing innovative waste‑to‑value approaches, our team prioritizes both operational excellence and social responsibility.

As global demand for minerals intensifies—especially those essential to the clean‑energy transition—we help clients navigate shifting regulatory landscapes, expand supply‑chain resilience, and deploy advanced extraction and treatment technologies. Our worldwide footprint allows us to support projects in diverse geologic settings, offering local insight backed by global technical depth. With teams trained in more than 80 relevant disciplines, we deliver integrated engineering, environmental stewardship, and site‑closure guidance. From critical mineral recovery to full mine reclamation, we ensure that mining and metals processing operations meet the highest standards for sustainability, community impact, and long‑term viability.

Tetra Tech’s PFAS management services support a wide range of industries that face increasing pressure to identify, mitigate, and manage emerging contaminants. We work extensively with federal, state, and municipal agencies that must comply with evolving PFAS regulations and implement complex site investigations under CERCLA, NPL, and related regulatory programs. Our teams also partner with defense organizations, supporting installations and bases where PFAS contamination from legacy materials such as AFFF requires advanced assessment and remediation. Across these public‑sector environments, we help clients protect communities, maintain compliance, and respond effectively to environmental and public‑health obligations. 

In the private sector, we support industrial, commercial, and solid‑waste operators seeking to address PFAS in manufacturing processes, wastewater streams, landfill leachate, and adjacent environmental media. Our specialized capabilities help critical infrastructure operators, water providers, and manufacturing facilities reduce liability exposure, ensure regulatory compliance, and implement safe, cost‑effective treatment strategies. With PFAS found across water, soil, sediment, air, and supply chains, we deliver integrated solutions that enable industries to operate responsibly while safeguarding environmental and human health.

At Tetra Tech, we help our clients meet the world’s growing demand for reliable, resilient, and sustainable energy. Our teams bring deep expertise across power generation, transmission, storage, and delivery—designing systems that operate efficiently, integrate clean energy technologies, and adapt to evolving regulatory and environmental expectations. From utility‑scale solar and onshore/offshore wind to hydropower, hydrogen, bioenergy, and battery storage, we support the entire project lifecycle. We plan, permit, engineer, and optimize energy assets using advanced analytics, geospatial tools, and field‑tested methodologies that improve performance and reduce development risk. Our work includes more than 2,000 solar projects, 1,800 wind projects, and 10,000 miles of transmission infrastructure worldwide—reflecting our long‑standing commitment to Leading with Science®.

Across every market—from oil and gas to next‑generation clean energy systems—we provide integrated environmental and engineering solutions that accelerate project delivery and support long‑term economic and grid resilience. Whether we are designing high‑voltage networks, modernizing power delivery for data centers, enabling natural‑gas‑powered growth, or supporting decarbonization initiatives, our interdisciplinary teams ensure each project meets the highest standards for safety, sustainability, and operational efficiency. With broad global reach and strong local presence, we help clients bring complex energy projects to market safely, efficiently, and economically, while ensuring communities benefit from dependable, future‑ready power.

At Tetra Tech, we help communities build modern, resilient, and environmentally responsible solid waste systems that meet today’s operational, regulatory, and sustainability demands. Our integrated teams deliver solutions across the entire waste‑management lifecycle—from landfill engineering, biogas and landfill gas optimization, and PFAS/leachate treatment to transfer stations, organics diversion, and alternative waste‑to‑resource technologies. With more than 40 years of industry leadership and over 1,700 active solid waste projects, we bring deep technical expertise, innovative thinking, and global perspective to help clients manage waste streams more efficiently while reducing environmental impacts and generating long‑term value. Our work also incorporates emerging practices such as drone‑based landfill assessments, renewable‑energy generation from closed landfills, and technologies that convert waste into electricity, vehicle fuel, and soil amendments.

We partner closely with municipalities, regional authorities, and private waste operators to deliver solutions tailored to evolving community needs. From planning and permitting to construction and long‑term operations, we support clients with services that increase diversion, enhance landfill performance, reduce greenhouse gas emissions, and prepare for future regulatory requirements. Whether implementing innovative organics programs, developing zero‑waste strategies, expanding landfill capacity, or deploying renewable natural gas projects, our focus is on creating integrated, sustainable waste systems that protect environmental health while supporting economic resilience. Our engineers and scientists apply Leading with Science® to ensure each project is cost‑effective, compliant, and built to adapt to new technologies and policies over time.

At Tetra Tech, we deliver transportation solutions that strengthen global connectivity, enhance mobility, and improve quality of life for the communities we serve. Our teams support projects across every mode—roads, bridges, tunnels, ports, airports, and multimodal systems—bringing decades of experience to help clients plan, design, construct, and manage resilient infrastructure. Whether engineering all‑season Arctic roads, deconstructing major bridges, or leading transformative metropolitan mobility projects, we integrate technical excellence with advanced tools such as 3D visualization, digital twins, UAVs, and AI‑enabled asset modeling to ensure every project is delivered with precision and efficiency. Our approach is grounded in Leading with Science®, enabling data‑driven solutions that balance safety, performance, sustainability, and long‑term value.

From early‑stage planning to long‑term asset management, we help clients navigate complex regulatory, environmental, and engineering challenges inherent to developing modern transportation networks. Our interdisciplinary planners, engineers, and project managers bring local insight backed by global capability, ensuring transportation assets are designed to endure extreme climates, accommodate future growth, and operate reliably across generations. Whether delivering alternative project delivery solutions, designing advanced interchanges, or supporting resilient winter road systems, we partner closely with public agencies and private clients to create infrastructure that moves people and goods safely and sustainably.

Tetra Tech’s One Water practice applies advanced analytics, digital monitoring, and integrated engineering to the full water cycle: securing sources, treating and reusing water, managing stormwater and wastewater, and protecting coasts and ecosystems. This includes intelligent water systems for flood and pollution control, innovative groundwater and treatment technologies that reduce reliance on imports, and programmatic solutions for PFAS and other emerging contaminants. The emphasis is on resilient design, systems integration, and data‑driven operations that improve environmental outcomes and community reliability.

They operationalize this through mission‑grade program management, rapid delivery of treatment assets, and continuous risk monitoring across networks. Digital water platforms and predictive analytics (including AI‑enabled insights) underpin detection, control, and optimization—while coastal resilience and living shorelines demonstrate integrated systems design tied to measurable environmental performance.

Tetra Tech’s data center solutions focus on accelerating the delivery of high‑performance, energy‑efficient, and sustainable digital infrastructure. Their approach blends engineering expertise, regulatory fluency, and advanced modeling to help clients build or convert facilities with optimal power and water usage. By prioritizing speed‑to‑market, they reduce delays associated with permitting, design, and utility coordination, while improving power usage effectiveness (PUE) and water usage effectiveness (WUE). From early feasibility assessments through full lifecycle design and delivery, Tetra Tech supports organizations as they plan, justify, and execute complex data center programs in fast‑evolving digital environments.

Their solutions also apply cutting‑edge digital technologies—including AI, machine learning, and digital twins—to simulate scenarios, refine performance, and reduce both capital and operating expenditures. They complement these tools with rigorous energy modeling, lifecycle cost analysis, and control system engineering. Tetra Tech additionally designs robust power systems using both conventional and renewable approaches, ensuring uninterrupted uptime and improved sustainability at scale. Their multidisciplinary teams bring together program management, industrial controls, safety‑in‑design, and advanced instrumentation to help clients develop next‑generation data centers that meet demanding performance, resilience, and environmental benchmarks.

For more than half a century, Tetra Tech has supported defense organizations worldwide by delivering science‑based, mission‑focused solutions that strengthen readiness, resilience, and operational continuity. Our teams integrate architecture, engineering, project management, environmental science, and advanced digital technologies to support the full life cycle of defense installations—from initial assessments through design, construction, optimization, and sustainment. This holistic approach enables us to modernize infrastructure, safeguard critical assets, and maintain compliance with the complex environmental, security, and regulatory frameworks that govern defense programs.

We combine deep expertise in information technology, cybersecurity, environmental management, master planning, and asset optimization to help defense clients protect their people and facilities while adapting to evolving mission demands. Our work spans C4I system support, remediation of environmental impacts, secure facility design, risk assessment, and program‑wide monitoring and evaluation. With more than 1,750 professionals holding current Five Eyes clearances and a proven record of delivering results across 150+ countries, we bring the tools, technologies, and governance required to meet the defense sector’s highest standards of security, accountability, and performance.

At Tetra Tech, our Digital Systems practice bridges the gap between enterprise strategy and operational technology to help clients modernize, secure, and optimize their critical infrastructure. We integrate global expertise in automation engineering, cybersecurity, systems integration, and digital modernization to deliver solutions that strengthen reliability and performance across complex environments. From master planning and technology road‑mapping to multi‑layered OT/IT integration and SCADA lifecycle support, we build digital ecosystems that give organizations complete visibility into their assets while enabling smarter, faster, and more informed decision‑making. Our teams leverage advanced analytics, AI‑powered insights, and high‑performance automation frameworks to streamline operations and reduce downtime for mission‑critical systems.

Our work is grounded in Leading with Science®, meaning we provide rigorously engineered, data‑driven solutions that improve how infrastructure is managed, monitored, and secured. With more than 900 automation engineers, 500 cybersecurity professionals, and 25,000 multidisciplinary experts, we deliver resilient architectures, advanced control systems, and future‑ready digital environments. Whether modernizing legacy systems, enhancing disaster recovery capabilities, or implementing enterprise data governance and analytics programs, we support clients through the full modernization lifecycle—from concept and planning through long‑term operations and optimization. Our goal is straightforward: build digital systems that are smarter, safer, more efficient, and capable of evolving with the needs of the industries we serve.

At Tetra Tech, our Disaster and Emergency Management practice brings together decades of technical expertise, field experience, and data‑driven methodologies to strengthen community resilience before, during, and after disaster events. We support the full disaster life cycle—from pre‑disaster planning and mitigation to emergency response, long‑term recovery, and reimbursement. Leveraging proven tools, advanced data platforms, and science‑based methodologies, our teams help communities anticipate hazards, improve response capacity, and manage operational complexities with confidence. Our work includes large‑scale debris monitoring, hazard mitigation, environmental compliance, incident management, and strategic preparedness programs that ensure continuity of operations when it matters most.

We combine innovative technologies such as real‑time data management systems, proprietary tracking platforms, and rigorous QA/QC protocols to streamline the recovery process and ensure federal compliance. Whether deploying rapid response teams within 24 hours, managing federally funded reconstruction programs, or guiding communities through evolving FEMA, HUD, and mitigation funding requirements, we deliver scalable, turnkey solutions that help clients navigate complexity and accelerate recovery. With more than 25 years of experience and thousands of completed projects across 44 states and territories, our focus is always on building future‑proof solutions that enable long‑term resilience and sustainable community recovery.

At Tetra Tech, we bring together leading scientists, engineers, planners, and technical specialists to solve complex environmental challenges with precision and innovation. Our approach is built on evidence‑based methodologies, advanced modeling, geospatial analysis, and decades of regulatory experience. We help clients address climate resilience, biodiversity protection, PFAS contamination, watershed health, coastal protection, hazardous waste management, permitting, and compliance. From the earliest phases of planning and permitting through construction oversight, monitoring, and long‑term site restoration, we deliver turnkey solutions that are scalable, cost‑effective, and protective of human health and the environment. Our teams integrate nature‑based engineering, environmental science, ESG strategy, and restoration practices to create durable, resilient outcomes for communities and ecosystems.

We also deploy state‑of‑the‑art digital tools, environmental modeling platforms, and proprietary technologies to enhance accuracy and accelerate project delivery. Whether supporting air and water quality programs, remediating contaminated sites, restoring marine and terrestrial habitats, or navigating the evolving landscape of global sustainability regulations, we provide the expertise needed to deliver measurable results. Through our centers of excellence, we offer clients the agility required for local projects and the capacity for large‑scale, multidisciplinary environmental programs worldwide. With a commitment to innovation and compliance, we help organizations plan responsibly, operate sustainably, and prepare for emerging environmental challenges.

At Tetra Tech, our Federal IT practice delivers mission‑driven technology solutions that strengthen federal agencies’ ability to operate securely, efficiently, and at scale. We combine advanced cybersecurity expertise, enterprise cloud capabilities, low‑code modernization, microservices engineering, and end‑to‑end IT lifecycle support to help our customers rapidly adapt to changing mission demands. Our teams support more than 550 active U.S. government IT projects, providing services that integrate security from the outset, optimize operational performance, and modernize legacy systems. Whether transforming national airspace systems, implementing cloud migrations, developing resilient IT architectures, or enabling agile enterprise modernization through our Innovation Lab, we focus on reducing risk, improving availability, and accelerating mission outcomes.

We deliver solutions that span cybersecurity operations, enterprise data management, systems engineering, and IT operations and maintenance for highly secure, mission‑critical environments—including environments requiring Top‑Secret and Sensitive Compartmented Information (SCI) protections. With more than 1,480 IT professionals and 870+ cleared experts, we integrate AI/ML prototypes, advanced analytics, and emerging technologies to modernize system performance, strengthen cyber posture, and support federal agencies’ operational missions. From command centers to cloud adoption, from risk‑managed modernization to full‑spectrum IT operations, we provide the depth, rigor, and technical excellence required to support federal missions across 55+ government departments and commands.

At Tetra Tech, our High Performance Buildings practice brings together world‑class engineers, scientists, and advisors to create smart, sustainable, and resilient spaces that elevate the built environment. Our teams apply advanced modeling, digital inspections, intelligent building technologies, and integrated design approaches to reduce energy use, cut embodied carbon, and enhance occupant comfort. From optimizing mechanical and electrical systems to leveraging data‑driven building insights, we engineer high‑performing spaces that meet the highest international standards for sustainability and long‑term resilience. With expertise spanning decarbonization, low‑carbon building design, climate‑driven retrofits, and advanced digital building intelligence, we deliver solutions that help clients meet their operational, environmental, and regulatory commitments.

We tailor our solutions across all project phases—from conceptual planning through commissioning and long‑term operations—ensuring buildings are not only high‑performing on day one but continue delivering value throughout their lifecycle. Our integrated technical excellence spans structural, civil, mechanical, electrical, fire engineering, sustainability, acoustics, lighting, vertical transportation, and digital systems, enabling us to deliver holistic building performance outcomes. By combining global knowledge with local insight, we help clients design buildings that embrace innovation, improve efficiency, and create healthier environments for the people who use them every day.

At Tetra Tech, our International Development team designs and delivers evidence‑based, sustainable development programs that advance security and prosperity worldwide. We pair decades of field experience with today’s leading technologies to co‑create practical solutions with local partners—improving water security, strengthening institutions, expanding clean energy access, and growing resilient economies in more than 100 countries. Our approach emphasizes measurable outcomes and locally led change, drawing on robust monitoring, evaluation, and learning (MEL) frameworks to inform decisions and continuously improve impact.

From market‑systems development and land governance to municipal service delivery and post‑conflict recovery, we integrate program management discipline with data‑driven analytics to manage complex, multi‑year portfolios at scale. Our teams work alongside government counterparts and civil society to build capacity, localize solutions, and strengthen public institutions—ensuring results endure long after projects close. With 40+ years of development experience and the reach of 500 offices and 25,000+ professionals, we mobilize the right expertise quickly and operate effectively across diverse geographies and operating environments.

At Tetra Tech, we are redefining the future of PFAS management by combining advanced science, breakthrough technologies, and global environmental expertise to help clients address one of the most challenging contaminant classes in the world. Our teams provide end‑to‑end lifecycle services—including source identification, forensic analysis, high‑resolution site characterization, predictive fate‑and‑transport modeling, and tailored remediation design. Leveraging AI‑enhanced analytics, 2D/3D modeling, and machine‑learning‑powered simulations, we accelerate investigations, reduce uncertainty, and generate deeper insight into exposure pathways and risk. This data‑driven approach allows us to pinpoint contamination more accurately, streamline decision‑making, and design smarter, more effective mitigation pathways.

We also lead the industry in developing and deploying innovative PFAS treatment and destruction technologies. Our capabilities range from scalable ion‑exchange and filtration systems to next‑generation destructive methods such as electron beam and supercritical water oxidation. These solutions support compliance with rapidly evolving regulatory frameworks while ensuring long‑term environmental protection. Whether working with government clients, industrial facilities, municipalities, or commercial operators, we deliver solutions that integrate advanced detection tools, robust analytics, cutting‑edge engineering, and sustainable treatment approaches—all designed to help clients stay ahead of regulatory change and build resilient, future‑ready PFAS programs

At Tetra Tech, we harness the power of strategic communications to help our clients engage communities, stakeholders, and the public with clarity, credibility, and measurable impact. Our approach begins with understanding the drivers behind a program—its goals, audiences, barriers, and behavioral dynamics. Using market‑based research tools, including data analytics and surveys, we uncover the insights that shape messages that resonate. We then apply our Leading with Science® philosophy to design outreach strategies that amplify those messages across tailored platforms. Whether we’re supporting small community initiatives or large‑scale environmental programs, our communication specialists create action‑oriented engagement frameworks that foster trust, transparency, and participation.

Our team integrates the expertise of scientists, engineers, researchers, designers, and digital specialists to build communications that are both technically accurate and highly accessible. We leverage innovative tools—such as our Volans 3D visualization system—to help audiences understand complex concepts and provide feedback that strengthens project outcomes. From stakeholder mapping and engagement plans to multilingual outreach materials and interactive public‑involvement campaigns, we create inclusive communication experiences that reach underrepresented groups and ensure decision‑making processes reflect the voices of the communities they affect. Our nationally recognized work, including contributions to the EPA’s “Getting in Step” series, demonstrates our commitment to excellence, equity, and meaningful public engagement.

myProjects is Tetra Tech’s secure, cloud‑based program and project portfolio platform that unifies every project, program, and portfolio into a single system—shifting teams from collecting data to deciding with it. Purpose‑built “by project managers for project managers,” it consolidates cost, schedule, scope, and performance data; automates manual workflows and approvals; and exposes real‑time dashboards so leaders gain continuous visibility and oversight across complex, multi‑stakeholder initiatives. Agencies have deployed the platform in weeks (not months), reporting up to 40% reductions in administrative effort and 70% faster report delivery, which accelerates delivery, improves accountability, and strengthens public trust.

Designed and refined by Tetra Tech’s global program management experts, myProjects is configurable to each client’s governance model—integrating with FMIS, GIS, and document systems to create a single source of truth for transportation and infrastructure portfolios (including MPOs managing more than $5B in active programs). With collaborative workspaces, stakeholder engagement tools, and analytics that track cost, schedule, and performance in real time, the platform streamlines delivery while institutionalizing data‑driven decisions. As part of the Tetra Tech Delta suite, myProjects exemplifies our Leading with Science® approach: combining domain program controls with advanced analytics and secure cloud architectures to modernize operations at scale.

FusionMap is an advanced AI‑powered geospatial intelligence platform designed to transform massive volumes of raw mapping data into actionable insights in real time. Built for teams that depend on precise, up‑to‑date spatial intelligence, the platform centralizes LiDAR, satellite imagery, 3D models, sensor inputs, and on‑the‑ground visuals into a unified, cloud‑based environment. By automating asset extraction, defect detection, and infrastructure assessment, FusionMap dramatically accelerates workflows—delivering results up to eight times faster than traditional geospatial processes and achieving industry‑leading detection accuracy. Its scalable modular design allows users to monitor infrastructure health, manage asset inventories, assess risks, and visualize complex environments at any resolution, from single‑site operations to nationwide networks.

The platform supports a broad set of mission‑critical use cases, from transportation and utilities to disaster response, defense, mining, and geohazard monitoring. FusionMap provides organizations with the real‑time intelligence they need to make faster, more confident decisions—whether they are inspecting a runway, managing a power grid, responding to emergencies, or evaluating slope stability in a mining corridor. With powerful tools like FusionLens visual dashboards, automatic object detection, video‑to‑3D conversion, and high‑resolution satellite Pro Layers, the platform enables seamless collaboration between field and office teams. FusionMap reimagines what spatial data can do, delivering clarity, speed, and operational insight across industries that rely on accurate geospatial intelligence.

OceansMap is a powerful, web‑based met‑ocean intelligence platform designed to turn vast and complex environmental datasets into real‑time insights that support mission‑critical decision‑making. By seamlessly integrating oceanographic, meteorological, and environmental data from global and regional sources, OceansMap gives users a unified operational picture of the conditions that matter most. The platform consolidates disparate datasets, standardizes formats, and applies advanced analytics and modeling tools—such as OILMAP and SARMAP—to enhance marine planning, emergency response, environmental assessment, and coastal resilience. Whether navigating uncertain marine environments, planning operations, or evaluating long‑term environmental risks, OceansMap simplifies complexity, making data not just accessible but actionable.

Designed for organizations operating in and around marine environments, OceansMap improves the way teams collaborate, plan, and respond. Its customizable dashboards, real‑time observations, and forecasting tools empower users to track changing conditions, model potential trajectories, and assess environmental impacts with precision. OceansMap supports everything from operational maritime logistics to environmental resource management and recreational safety, providing a robust decision‑support ecosystem for stakeholders who rely on accurate ocean intelligence. By delivering integrated data, visualization, and predictive modeling in one place, OceansMap helps users build resilience, protect ecosystems, and optimize operations in dynamic marine contexts.

RailAI® is Tetra Tech’s fully autonomous, track‑speed inspection system designed to transform how railroads assess, monitor, and maintain their infrastructure. Operating unmanned at speeds up to 70 mph, RailAI captures continuous, high‑precision measurements of rail components—including ties, ballast, rail profile, welds, joints, and track geometry—while eliminating the need for hi‑rail vehicles and reducing on‑track worker exposure. By combining AI‑powered onboard processing, 3D laser systems, high‑resolution imaging, and LiDAR, RailAI delivers real‑time defect notifications, enabling rail operators to respond to issues immediately and prevent costly disruptions. The system generates georeferenced, repeatable datasets that support accurate modeling of asset degradation, predictive maintenance, and data‑driven capital planning.

RailAI’s scalable architecture integrates multiple sensor systems into a single platform, producing significantly more—and higher‑value—data than traditional inspection methods at a fraction of the cost. Its advanced RailAI Control System manages the entire data ecosystem, synchronizing sensor inputs, performing automated defect detection, and transmitting prioritized alerts to client back‑office systems within seconds. With the ability to operate unattended for a month or more, RailAI supports continuous fleet‑wide monitoring, providing railroads and federal programs with the insights they need to optimize maintenance, reduce operational risk, and strengthen system‑wide safety. Over time, run‑over‑run comparisons enhance predictive modeling and asset planning, making RailAI a cornerstone of modern railroad asset management.

Volans is an advanced visualization platform designed to transform how organizations interpret and communicate complex environmental and operational data. By integrating multidimensional information—such as airspace activity, environmental impacts, and system‑level performance—Volans enables users to view their data in an intuitive 3D environment. This allows teams to see patterns, identify risk, and understand operational constraints with clarity that traditional charts and GIS tools cannot match. Volans supports transparent, data‑driven discussions by showing real‑world conditions and projected outcomes in an interactive visual context, improving both stakeholder understanding and decision‑making. 

The platform is particularly valuable for agencies and operators managing sensitive airspace or complex environmental permitting requirements. By visualizing flight paths, noise impacts, environmental constraints, and community considerations, Volans helps streamline regulatory reviews, strengthen community engagement, and reduce project uncertainty. Its ability to ingest multiple data layers into a single operational picture enhances situational awareness, promotes safety, and enables more accurate planning for future operations. The result is a powerful decision‑support environment that bridges the gap between technical analysis and public communication—positioning Volans as a critical tool for organizations working at the intersection of aviation, environment, and public infrastructure

Tetra Tech is advancing offshore environmental protection through Neptune, a patented, AI‑powered acoustic detection system designed specifically for the noisy, complex soundscapes found in offshore energy projects. Traditional marine mammal monitoring tools often struggle in these environments—many were built for quiet acoustic conditions or tuned to detect only a single species, leading to missed faint calls and false positives triggered by vessels or construction equipment. Neptune overcomes these limitations by leveraging machine learning trained on real offshore recordings, enabling it to identify low‑ and mid‑frequency vocalizations across multiple species groups with high accuracy, even in challenging underwater conditions. In fact, Neptune has demonstrated up to 96% detection accuracy for some of the most vulnerable whale species, far exceeding the typical performance of conventional AI acoustic tools.

Neptune’s ability to adapt in real time is essential for large offshore energy projects, where environmental conditions and operational noise change constantly. The system can be retrained to minimize false positives, updated to recognize evolving soundscapes, and configured to reduce the need for transmitting large volumes of data back to shore. This capability not only accelerates mitigation decision‑making but also lowers operational costs—one offshore project achieved a 70% reduction in monitoring costs thanks to Neptune-driven automation and a 40% reduction in data transmission needs. By providing real‑time acoustic intelligence, reducing the workload on protected-species observers, and improving accuracy in species detection, Neptune strengthens compliance, safeguards marine ecosystems, and enhances responsible offshore wind and marine construction activities

WaterNet is Tetra Tech’s industry‑leading spatial asset management and reporting platform built specifically for the water sector. Designed to bring together data scattered across telemetry systems, billing datasets, SCADA feeds, GIS platforms, and operational records, WaterNet transforms complex, multi‑source inputs into clear, actionable insights. The system gives utilities a single, unified view of network performance—supporting leakage management, consumption analysis, water resource planning, sewer flooding reporting, and regulatory compliance. With capabilities for real‑time alerting, pressure monitoring, metering oversight, and water balance analytics, WaterNet enables water companies to make faster, smarter, and more transparent decisions that improve operational resilience and customer service.

WaterNet is widely adopted across the UK water industry and has become central to major regulatory and performance‑driven initiatives. Severn Trent and United Utilities, for example, are deploying WaterNet as their new enterprise‑level reporting and leakage‑management platform to accelerate leakage reduction, streamline reporting, and meet ambitious AMP8 performance commitments. Utilities highlight WaterNet’s ability to cut report preparation time from days to hours, consolidate leakage and consumption data in one place, and provide a robust, auditable system that fully aligns with regulator expectations. By enabling water companies to manage assets more proactively, reduce network losses, and plan investments with greater precision, WaterNet strengthens the reliability and sustainability of critical public‑water infrastructure.