Tetra Tech Companies 

Tetra Tech and its subsidiaries work together as a full-service company to meet all of our clients' needs. We have the local presence and global resources you need for the life cycle of your project.

Ardaman & Associates, Inc.
BPR
Bryan A. Stirrat & Associates
Cosentini Associates, Inc.
EBA, A Tetra Tech Company
Fransen Engineering
Metalica Consultores
PRO-telligent, A Tetra Tech Company
Proteus EPCM Engineers
Tetra Tech Advent
Tetra Tech AMT
Tetra Tech Architects & Engineers
Tetra Tech ARD

Tetra Tech Construction
Tetra Tech CSI
Tetra Tech EC, Inc.
Tetra Tech EM Inc.
Tetra Tech EMC
Tetra Tech GEO
Tetra Tech HEI
Tetra Tech Tesoro, Inc.
Tetra Tech WEI Inc.
Western Utility Contractors, Inc.

Ardaman & Associates, Inc.
Ardaman & Associates provides engineering services to both the public and private sector, along the Gulf Coast, nationwide, and internationally. Services provided include subsurface investigation, foundation engineering, laboratory testing, construction materials testing and inspection, water resources, pre-acquisition site assessments, contamination remediation, phosphogypsum disposal, and earthen dams and facilities engineering. Its headquarters is located in Orlando, Florida, with 13 branch offices throughout Florida and Louisiana. (407) 855-3860.

BPR
Established almost 50 years ago, BPR is among the largest engineering firms in Quebec and Canada, providing a full range of engineering services and project management services to industrial and commercial businesses, major institutions, and municipalities. BPR has five major specialties: water, buildings, infrastructure, energy, and industrial services. BPR is headquartered in Quebec (Canada). (514) 257-2427.

Bryan A. Stirrat & Associates (BAS)
BAS, A Tetra Tech Company, is a solid waste, environmental, and civil infrastructure firm with more than 25 years of experience managing landfill and hazardous waste projects for municipal and commercial clients. BAS supports the full waste management project life cycle, from planning to engineering, construction, and operations and maintenance. BAS also provides specialized services including landfill gas management, geotechnical consulting, and public infrastructure support services. BAS is based in Diamond Bar, California. (909) 860-7777.

Cosentini Associates, Inc.
Since its founding in 1952, consulting engineering firm Cosentini Associates has worked closely with leading architects, developers, and government agencies in the design of many of the world's most innovative and celebrated buildings. These include such renowned projects as the Guggenheim Museum in Bilbao, Spain; the U.S. Holocaust Museum in Washington, District of Columbia; Time Warner Center in New York, New York; the Mortimer B. Zuckerman Research Center at Memorial Sloan Kettering Cancer Center in New York, New York; the world headquarters of Owens Corning in Toledo, Ohio; and many others. The firm provides mechanical, electrical, plumbing, and fire protection engineering; mission-critical design; specialty telecommunications, security, audiovisual, and lighting design; sustainable/LEED ^® design; commissioning; and construction services. Cosentini's clients include major cultural institutions, global corporations, premier healthcare providers and universities, financial services firms, residential developers, and hospitality corporations, etc. Cosentini is headquartered in New York, New York. (212) 615-3600.

EBA, A Tetra Tech Company

EBA, A Tetra Tech Company (EBA), provides a broad range of engineering and scientific consulting services to clients in Western and Northern Canada. EBA provides a full range of services including engineering, scientific, technical, planning, prime consulting, and project management for mining, energy, transportation, and local government clients. EBA is known for its science, engineering, and arctic engineering expertise. EBA has progressively expanded over the last 40 years and today has more than 600 engineers, scientists, technologists, and support staff in 10 offices. EBA is headquartered in Edmonton, AB (Canada). (780) 451-2121.

Fransen Engineering, A Tetra Tech Company

Fransen Engineering provides comprehensive multi-discipline design and engineering services to assist heavy industrial and utility clients in sustaining and upgrading their facilities. Fransen has a depth of experience working in the oil sands of Alberta and offers specialty expertise in tailings management for oil sands producers. Fransen is based in Richmond, BC (Canada). (604) 270-7728.  

Metalica Consultores

Since 1990, Metalica Consultores S.A. has provided strong front-end services to Latin America's mining and minerals sector. Metalica offers mine planning, mine design, pre-feasibility and feasibility studies, mine operations support, and industrial process engineering services. Its headquarters is in Santiago, Chile. +56 2 290 6910.  

PRO-telligent, A Tetra Tech Company

PRO-telligent, A Tetra Tech Company, is a multi-disciplinary strategic consulting company providing mission-focused services and solutions to its international customer base. PRO-telligent provides services in strategy, operations, security, training, and information technology, nationwide and globally, including austere and hostile environments. Its core capabilities include international development/security, peacekeeping capacity building/training, governance/rule of law, justice sector reform and global health operations and program management. PRO-telligent is headquartered in Arlington, Virginia, with several offices around the globe. (703) 414-5520.

Proteus EPCM Engineers

Proteus EPCM Engineers, a Tetra Tech Company, has served Australia's mining and minerals processing sector for more than 25 years. Proteus has experience in a wide range of commodities, particularly iron ore, precious and base metals, gold, mineral sands, and aluminum. Proteus undertakes studies, provides detailed design services, and delivers projects on an EPCM (engineering, procurement, and construction management) basis. Its headquarters are in Perth, Australia. +61 8 6313 3200.  

Tetra Tech Advent
Tetra Tech Advent (Advent) is a multi-disciplinary engineering, consulting, and licensing firm that provides services to the nuclear power industry. Advent provides award-winning services in the areas of information management, design process improvement, regulatory compliance, complex problem solving, engineering design and evaluations, and quality assurance. Advent's expertise includes environmental qualification, Appendix R fire protection, new plant COL support, existing plant design modification 50.59 evaluations, nuclear site security support, FSAR and regulatory compliance consulting, engineering analysis (TH, HELB, etc.), and emergency planning. Advent is headquartered in Ann Arbor, Michigan. (734) 930-7500.

Tetra Tech AMT
Tetra Tech AMT provides industry-leading information technology (IT) and aviation management services primarily to the U.S. federal government and to international and commercial sector customers. Tetra Tech believes its value is built on a culture of excellence that encourages innovation, fosters collaboration, and produces results. Tetra Tech prides itself in delivering a full range of IT and aviation management services from software development, identity management, financial management and systems support to performance based navigation, satellite navigation, NextGen services, and green aviation. Its headquarters is located in Arlington, Virginia. (703) 841-2684.

Tetra Tech Architects & Engineers
A leader in architecture and engineering for more than 40 years, Tetra Tech Architects & Engineers has designed and completed hundreds of the best facilities throughout the Northeast and Mid-Atlantic Regions. Tetra Tech Architects & Engineers offers a complete menu of professional in-house planning, design, and construction administration services to schools and universities, federal government, municipalities, and private clients including sports teams and commercial builders. With seven offices throughout New York, New Jersey, and Delaware, Tetra Tech Architects & Engineers provides architecture, engineering, landscape, interior design, security design, technology design, energy services, and construction administration. Its headquarters is located in Ithaca, New York. (607) 277-7100.

Tetra Tech ARD
Tetra Tech ARD plans, designs, implements, and evaluates projects, and conducts research in six service areas: water resources and infrastructure; agriculture and economic growth; environment and natural resources; land tenure and property rights; democracy and governance; and knowledge management.  ARD has established an excellent reputation for its ability to manage large, complex development projects, providing the right mix of logistic, program management, and technical assistance. Since its founding in 1977, ARD has conducted hundreds of domestic and international projects and comprehensive, crosscutting development programs. ARD's headquarters is located in Burlington, Vermont. (802) 658-3890.

Tetra Tech Construction
Tetra Tech Construction (formerly The Delaney Group) provides program management and construction services for energy, heavy civil, site development, and infrastructure projects, including wind energy, roads, bridges, grading, utilities, base realignment and closure (BRAC) services, and water/wastewater treatment and conveyance facilities. Its headquarters is located in Gloversville, New York. (518) 661-5304.

Tetra Tech CSI
Tetra Tech CSI provides telecommunication services and solutions to federal, state, and local governments and to the private sector. Tetra Tech CSI focuses on pre-construction planning and cost evaluations; engineering and program management; and full turnkey network construction including tower, underground, aerial, and premise wiring. Trusted partners include Utopia, Verizon FiOS, ports and harbors, international airports, and the U.S. Department of Transportation. Its headquarters is located outside Denver, Colorado. (720) 881-7111.

Tetra Tech EC, Inc.
Tetra Tech EC, Inc. offers a wide array of consulting, engineering, and construction services, including air services; assessment and investigation; ecological services; energy and environmental permitting; GIS; geoscience services; mitigation banking; port, harbor, and waterway services including navigational and levee controls; occupational safety and health; operations and maintenance; pipeline services; pollution prevention/waste minimization; public involvement services; regulatory compliance and permitting; remediation; remedial design; risk-based management; telecommunications; services for unexploded ordnance (UXO)/munitions of explosive concern; full-service energy solutions including design/build, facilities construction, and waste management; and infrastructure services, including grading and utilities, roads, bridges, and combined sewer overflow projects. Its headquarters is located in Morris Plains, New Jersey. (973) 630-8000.

Tetra Tech EM Inc.
With more than 30 offices nationwide, Tetra Tech EM Inc. offers environmental consulting and engineering services including site investigation and clean-up, emergency preparedness and response, disaster management, green services, energy management, hazardous waste/materials management, air and water quality, regulatory compliance, information management, and training to government agencies and private clients in the United States and internationally. Its headquarters is located in Chicago, Illinois. (312) 201-7700.

Tetra Tech EMC
Tetra Tech EMC provides technical and staff augmentation services to the commercial sector and government agencies. Areas of service include computer system design, analysis and integration; systems engineering, test and evaluation; and logistics support services; facilities operations and management services; environmental studies and analysis; human capital management services; earned value management services; technical writing; and modeling and simulation. Tetra Tech EMC's headquarters is located in Camarillo, California. (805) 484-9082.

Tetra Tech GEO 

Specializing in groundwater flow and transport modeling, Tetra Tech GEO has provided services to some of the most complex environmental sites across the United States including the Savannah River Site, the Lipari Landfill, the Nevada Test Site, Love Canal, and the Rocky Mountain Arsenal. Its skill set encompasses core capabilities such as integrated site characterization, field investigation, risk assessment and clean-up, groundwater modeling and analysis, characterization and remediation of NAPL, brownfields redevelopment, information management, remedial design, implementation and oversight, water resources, litigation and negotiation support, telecommunications site acquisition, remedial system evaluation and optimization, mine closure, and ISO 14000 implementation. Founded in 1979, Tetra Tech GEO has grown to over a dozen offices nationwide, with its headquarters located in Sterling, Virginia. (703) 444-7000.

Tetra Tech HEI
Tetra Tech HEI provides professional technical and management services for nuclear materials and weapons program infrastructure and operations, safeguards and security, environmental remediation, and waste management programs in support of government contractors and government agencies. Tetra Tech HEI is primarily focused on serving the U.S. Department of Energy (DOE) and the National Nuclear Security Administration (NNSA) missions, and operates out of facilities in close proximity to major DOE/NNSA nuclear weapons program sites, national laboratories, and environmental clean-up sites. Tetra Tech HEI's headquarters is located in Oak Ridge, Tennessee. (865) 483-7007.

Tetra Tech Tesoro, Inc.
Tetra Tech Tesoro is a construction services firm with a proven track record of success, particularly in design-build project delivery for federal clients including the U.S. Navy, U.S. Coast Guard, and other federal government entities. Tetra Tech Tesoro provides construction management and other construction services to build and repair facilities in support of military construction programs, military transformation initiatives, and the U.S. Department of Defense's Base Realignment and Closure (BRAC) activities. The firm has supported the construction and rehabilitation of military headquarters, administrative facilities, operational facilities, training facilities, barracks, family housing, dining facilities, personnel support facilities, industrial facilities, and piers. Tetra Tech Tesoro is headquartered in Virginia Beach, Virginia. (757) 518-8491.

Tetra Tech WEI Inc.
Established in 1955, Tetra Tech WEI Inc. (formerly Wardrop) is a Canadian-based consulting company providing front-end studies, engineering, and environmental services for resource management, energy, and infrastructure markets. Tetra Tech WEI offers feasibility studies, conceptual and detailed design, procurement, and construction management, among other technical consulting and engineering services. Tetra Tech WEI currently employs approximately 1,200 employees and has been named one of Canada's Top 100 Employers eight times. Tetra Tech WEI is based in Mississauga, ON (Canada). (905) 369-3000 or toll free at 1-877-987-3211.

Western Utility Contractors, Inc.
Western Utility Contractors, Inc. has been involved primarily in the construction of coaxial and fiber-optic infrastructure and sewer and water infrastructure for nearly 15 years. A pioneer in the field, it provides underground construction and installation services for wiring cable distribution systems, including many located in downtown Chicago and suburban municipalities. Western Utility also provides 24/7 emergency response for sewer and water breaks and fiber outages. Its headquarters is located in University Park, Illinois. 708-235-1408.