Tetra Tech is a prominent provider of consulting and engineering services, focusing on the environmental, infrastructure, resource management, energy, and international development sectors. With a workforce of over 10,000 employees globally, the company offers comprehensive solutions throughout the entire project life cycle. Tetra Tech specializes in water-related services, catering to both public and private clients, and is adept at designing complex infrastructure and facilities. The company operates through two main segments: the Government Services Group, which serves U.S. government clients and international development agencies, and the Commercial/International Services Group, which addresses the needs of commercial clients. Tetra Tech's commitment to innovative solutions positions it as a leader in addressing critical challenges related to water, the environment, and energy.
NDY Group, also known as Norman Disney & Young, is an engineering consulting firm based in North Sydney, Australia, with a global presence. Established in 1959, the company offers a diverse range of consulting services, including acoustics, asset performance, audio-visual solutions, building information modeling, commissioning management, electrical and fire engineering, hydraulics, and information and communications technology consultancy. It also provides expertise in interiors, mechanical systems, sustainability, security, and vertical transportation. NDY Group serves various sectors, including civic, education, health, industrial, residential, retail, and transport markets. As of June 30, 2018, the firm operates as a subsidiary of Tetra Tech, Inc. The company is recognized for delivering innovative and tailored solutions to meet the specific needs of its clients.
Coffey International Limited is a consulting firm that specializes in geoservices, international development, and project management on a global scale. The company offers a wide range of services, including geotechnical engineering, groundwater management, earthquake engineering, and virtual reality applications. It also focuses on development assistance through project design, fund management, and strategic communications, alongside research and evaluation services. Additionally, Coffey provides project planning, risk management, and Building Information Modelling to enhance project coordination and documentation. The firm is involved in extensive testing services for soil, rock, and materials. Founded in 1959 and headquartered in Chatswood, Australia, Coffey International operates as a subsidiary of Tetra Tech, Inc. since January 2016.
Cornerstone Environmental Group is an environmental engineering and consulting firm dedicated to providing services to the solid waste industry with commercial, industrial, and utility clients throughout the United States.
Caber Engineering is a Calgary-based engineering firm that offers a range of services across multiple disciplines. The company specializes in engineering solutions for tank terminals, rail loading, gas processing, and carbon capture. In addition to its core engineering services, Caber Engineering provides project management and field services, catering to upstream and midstream sectors, as well as specialized process engineering needs. With its extensive expertise, the firm has established itself as a leader in the engineering industry.
American Environmental Group offers specialized environmental, construction, and maintenance services, focusing on solid and hazardous waste management. Established in 2002, the company caters to a diverse clientele in the environmental, energy, mining, and industrial sectors. It has gained recognition as a leader in landfill gas system construction and is a premier supplier and installer of geosynthetics. American Environmental Group's experienced management team plays a crucial role in its operations and success in the industry.
Parkland Pipeline Contractors Ltd. is an Oil & Gas Service Company. They specialize in small to midbore pipeline (2 inch to 30 inch) as well as the construction and maintenance of pipeline and oilfield facilities.
Proteus EPCM Engineers provides engineering design, procurement and construction management (EPCM) services.
Fransen Engineering
Acquisition in 2011
Fransen Engineering provides engineering and technical support to industrial clients with specific expertise in water treatment and tailings management for oil sands producers.
BPR is one of the largest engineering firms in Quebec and Canada, specializing in a comprehensive range of engineering and project management services. The firm serves a diverse clientele, including industrial and commercial businesses, major institutions, and municipalities. BPR's expertise is organized into five key areas: building, infrastructure—encompassing municipal infrastructure and transportation—energy, industry, and water management. This broad spectrum of services positions BPR as a significant player in the engineering sector, capable of addressing various client needs across multiple domains.
EBA Engineering Consultants is a consulting engineering and sciences firm that offers a comprehensive range of services, including arctic engineering, natural sciences, geophysics, planning, transportation, and water and marine services. As part of a larger network of companies under Tetra Tech in Canada, EBA operates with a values-based approach and employs over 4,000 professionals across 50 offices nationwide. This integrated model enables EBA to provide a wide array of consulting services, catering to the diverse needs of commercial sectors and facilitating efficient operations for its clients.
Tetra Tech WEI
Acquisition in 2009
Tetra Tech WEI specialising in resource management, energy and infrastructure design. Tetra Tech WEI Inc. was formerly known as Wardrop Engineering Inc. and changed its name in October 2011.
Gore Engineering
Acquisition in 2007
Gore Engineering operates as a geotechnical engineering firm.
Northern Ecological Associates
Acquisition in 2007
Northern Ecological Associates is an environmental services firm with special permitting expertise relevant to wind energy programs.
Murphy Engineering Group
Acquisition in 2007
Murphy Engineering Group focuses on water infrastructure services.
Soil Testing Engineers specializes in soil testing services, focusing on site investigation, geologic evaluation, and geotechnical engineering design. The company offers a range of consulting services that encompass geotechnical, environmental, and materials assessments. Their expertise is applicable to various sectors, including industrial facilities, commercial enterprises, professional firms, and government agencies. By providing technical consulting and engineering services, Soil Testing Engineers plays a crucial role in ensuring the safety and stability of construction projects and infrastructure development.
Vector Colorado
Acquisition in 2007
Vector Colorado provides consulting and geotechnical engineering services to the mining industry.
Engineering Management Concepts provides technical and staff augmentation services to the U.S. Government and commercial clients. Areas of service include information technology (IT), computer sorftware engineering; systems engineering, test and evaluation; logistics support services; facilities operations and management services; program and financial management; real property and space planning; facility management, operations, and maintenance; workforce development and management; human capital management services; earned value management services; and technical writing.
Foster Wheeler Environmental Corporation provides consulting, engineering, remediation, and construction services.
D.E.A. Construction
Acquisition in 1999
D.E.A. Construction is a provider of engineering and network infrastructure services for cable-TV and fiber-optic telephone networks.
SCM Consultants
Acquisition in 1997
SCM Consultants is a designer of various water and wastewater systems.
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