Tetra Tech

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.

Brian Sullivan

President - Tetra Technician Infrastructure Northeast Region Operating Unit

Past deals in Consulting

The Kaizen Company

Acquisition in 2021
The Kaizen Company specializes in delivering solutions that enhance institutional capacity and organizational performance, particularly in developing countries. It offers a range of services including organizational development, incubator programs, and communities of practice, aimed at fostering locally-owned transformations. The company supports various sectors such as finance, education, governance, and economic growth, helping organizations improve their effectiveness and resilience. By facilitating connections between businesses and capital providers, The Kaizen Company enables enterprises to achieve their growth potential. Its initiatives focus on sustainable and scalable innovations that leverage new media and technologies, ultimately contributing to increased living standards in emerging markets.

WYG

Acquisition in 2019
WYG Group is a professional services firm that specializes in management consulting, project management, and technical services.

EGlobalTech

Acquisition in 2019
EGlobalTech is a prominent small business based in Arlington, Virginia, specializing in information technology and management consulting services for the Federal Government. The company offers a range of solutions, including cloud migration, information assurance, cybersecurity, and business strategy. With a team of experienced professionals drawn from top consulting firms, EGlobalTech is committed to delivering customized solutions that help clients meet their objectives effectively. Their expertise in IT and management consulting positions them as a trusted partner for government agencies seeking to enhance their operational capabilities.

Coffey International

Acquisition in 2015
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.

PRO-telligent

Acquisition in 2011
PRO-telligent offers professional and technical services primarily to civilian, defense, and national security clients. The company specializes in strategy consulting, focusing on areas such as operations, change management, and information technology. Their services are designed to support various government operations, ensuring effective and efficient management of resources and processes.

BPR

Acquisition in 2010
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

Acquisition in 2010
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.

ARD

Acquisition in 2007
ARD is a consulting firm that specializes in designing, implementing, and evaluating projects across various sectors, including governance and institutional development, natural resources and the environment, agriculture and rural development, infrastructure—particularly water supply and sanitation—and information management. Established in 1977, ARD has a strong track record of executing numerous domestic and international projects, focusing on comprehensive development programs. The firm offers technical consulting services aimed at assisting developing countries in enhancing their governance, agricultural practices, infrastructure, energy solutions, and environmental management. Through its diverse expertise, ARD contributes to sustainable development and improved quality of life in various communities.

Northern Ecological Associates

Acquisition in 2007
Northern Ecological Associates is an environmental services firm with special permitting expertise relevant to wind energy programs.

Vector Nevada

Acquisition in 2007
Vector Nevada provides mining consulting services.

Soil Testing Engineers

Acquisition in 2007
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

Acquisition in 2003
Foster Wheeler Environmental Corporation provides consulting, engineering, remediation, and construction services.

Shepherd Miller

Acquisition in 2001
Shepherd Miller operates as an environmental engineering consulting firm.

McCulley, Frick & Gilman

Acquisition in 1999
McCulley, Frick & Gilman is a provider of professional environmental science and consulting services to private-sector clients.

SCM Consultants

Acquisition in 1997
SCM Consultants is a designer of various water and wastewater systems.
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