TETRA TECH INC

CIG primarily provides high-end consulting and engineering services to U.S. commercial clients, and international clients inclusive of the commercial and government sectors. CIG supports commercial clients worldwide in renewable energy, industrial, high-performance buildings and aerospace markets. CIG also provides sustainable infrastructure and related environmental, engineering, and project management services to commercial and local government clients across Canada, in Asia Pacific (primarily Australia and New Zealand), Europe, the United Kingdom, and South America (primarily Brazil).

CIG provides consulting and engineering services worldwide for a broad range of water, environment and sustainable infrastructure-related needs in both developed and emerging economies. The primary markets for CIG's services include natural resources, energy and utilities, as well as sustainable infrastructure master planning and engineering design for facilities, transportation and local development projects. CIG's services span from early data collection and monitoring to data analysis and information management, to feasibility studies and assessments, to science and engineering applied research, to engineering design, to project management and operations and maintenance. CIG advances the application and development of Tetra Tech Delta technologies and integrates our high-end AI-enabled software solutions for a wide range of applications including condition assessments, digital twins, integration of satellite and drone imagery and advanced rapid scanning techniques.

CIG's environmental services include cleanup and beneficial reuse of sites contaminated with hazardous materials, toxic chemicals and oil and petroleum products, which cover all phases of the remedial planning process, starting with disaster response and initial site assessment through removal actions, remedial design and implementation oversight; and supporting both commercial and government clients in planning and implementing remedial activities at numerous sites around the world, and providing a broad range of environmental analysis and planning services.

CIG also supports commercial clients by providing design services to renovate, upgrade and modernize industrial water supplies, and address industrial water treatment and water reuse needs; and provides plant engineering, project execution and program management services for industrial water treatment projects throughout the world.

CIG provides planning, architectural and high-performance building engineering services for commercial and government facilities. We provide high-end design of sustainable energy, water and GHG decarbonization solutions including civil, electrical, mechanical, structural and hydraulic engineering for buildings, campuses and surrounding developments. We provide high-end services in addressing indoor health and associated assessment, consulting and retrofits of buildings to address indoor air quality and safety. We also provide 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.

CIG's international services, especially in Canada, Europe, the United Kingdom, and Asia Pacific, include high-end analytical, engineering, architecture, geotechnical, project management and advisory services for infrastructure projects, including early project planning, rail and roadway monitoring and asset management services, collection of condition data, optimization of upgrades and long-term planning for expansion; multi-modal design services for commuter railway stations, airport expansions, bridges and major highways and ports and harbors; and designing resilient solutions to repair, replace and upgrade older transportation infrastructure.

CIG provides infrastructure design services in extreme and remote areas by using specialized techniques that are adapted to local resources, while minimizing environmental impacts, and considering potential climate change impacts. These include providing consulting, geotechnical and design services to owners of transportation, natural resources, energy and community infrastructure in areas of permafrost or extreme climate regions.

CIG's energy services include support for electric power utilities and independent power producers worldwide, ranging from macro-level planning and management advisory services to project-specific environmental, engineering, project management and operational services, and advising on energy security and the design and implementation of smart grids, both domestically and internationally, including increasing utility automation, information and operational technologies and critical infrastructure security. For utilities and governmental regulatory agencies, our services include policy and regulatory development, utility management, performance improvement and asset management and evaluation. For developers and owners of renewable energy resources such as solar grid and off-grid, on-shore and off-shore wind, biogas and biomass, tidal, hydropower, conventional power generation facilities, micro-grid and battery or alternative storage facilities, as well as transmission and distribution assets, our services include environmental, electrical, mechanical and civil engineering, procurement, operations and maintenance and regulatory support for all project phases.

CIG supports industrial clients globally. Our services include environmental permitting support, siting studies, strategic planning and analyses; design of site civil works; water management; biological and cultural assessments, and site investigations; and hazardous waste site remediation.

CIG also provides environmental remediation and reconstruction services to evaluate and restore lands to beneficial use, remediating, and restoring contaminated facilities in the U.S. and around the world; managing large, complex sediment remediation programs that help restore rivers and coastal waters to beneficial use; and supporting utilities in the U.S. in implementing restoration and environmental management programs.