Careers at Tetra Tech


Tetra Tech Inc (“Tetra Tech”) aims to establish itself as the premier worldwide consulting and engineering firm, focusing on water, environment, infrastructure, resource management, energy, and international development services, and to provide services sustainably and ethically.


Tetra Tech was established in 1966 under the name Water Management Group of Tetra Tech Inc. It was founded by four individuals based in Pasadena, California to provide engineering services related to waterways, harbours, and coastal areas. Tetra Tech opened its first wave lab in 1969 and in 1973 launched its first remote control submarine for exploration and military applications.

Tetra Tech grew relatively quickly and in 1977 listed shares on the American Stock Exchange.

The company used the proceeds from its initial public offering to further develop its business and expand its service offerings, in particular developing new methods of predicting the level and frequency of floods and causes of acid rain to support environmental impact studies.

In 1991, the company issued 1.4 million shares on the NASDAQ exchange, enabling the company to make a number of additional acquisitions.

Tetra Tech has continued to expand its operations in the 2000s, and is among the largest engineering and construction consulting firms in the world. The company currently employs more than 17,000 workers worldwide and maintains an operational presence across 400 offices in the Americas, Asia Pacific, Europe, and the Middle East.

The company has a current market capitalisation of approximately USD 3.27 billion.

Business model of Tetra Tech

Customer Segments

Tetra Tech serves a wide range of commercial and institutional clients both domestically and abroad. The company’s core customers can be organised broadly into the following segments:

  • Commercial Enterprises, including high-profile companies operating across the oil and gas, energy and power, utilities, manufacturing and industrial, aerospace and engineering, construction, and mining sectors among others;
  • Government and Public Bodies, comprising federal, state, and local government bodies and public institutions across the US, including civilian and defense agencies with services in water, environment, infrastructure, information technology, and emergency management services; and
  • Development Organisations, including domestic and international development agencies.

Tetra Tech’s largest market is the its native US. The company also serves a large international customer base across the Americas, Asia Pacific, Europe, and the Middle East.

Value Propositions

Tetra Tech provides value to its customers in the following ways:

  • Reputation and Track Record – Tetra Tech has a long history of providing consulting services and continues to enhance its reputation around the world, as indicated by its continued ability to secure business from US government bodies and high-profile commercial entities;
  • Size and Reach – Tetra Tech is among the largest specialist engineering and infrastructure consulting firms in the world, serving an international client base out of 400 offices spanning the Americas, Asia Pacific, Europe, and the Middle East;
  • Experience and Expertise – Tetra Tech employs highly-skilled workers across all employment levels of its company who are led by an experienced team of industry executives; and
  • Broad Range of Services – Tetra Tech offers a wide range of services that support companies operating across a broad range of industries, including the oil and gas, mining, engineering and construction, government, and utilities industries.


Tetra Tech provides its solutions directly to clients. Its solutions are agreed with clients through the company’s various sales and service personnel who are organised across the company’s three core operating segments and more than 400 offices spread across the Americas, Asia Pacific, Europe, and the Middle East.

Tetra Tech provides innovative consulting and engineering services. It employs innovative approaches and emerging science and technology in the provision of its solutions, which are developed at its specialised research and testing facilities.

Customer Relationships

Tetra Tech seeks to establish longstanding relationships with its clients. The company notably has regular clients with which it has worked for many years.

Tetra Tech works closely with these clients with a view to proactively understanding their priorities and identifying strategies to effectively integrate its experience, emerging science, proprietary data, and resources into its solutions.

Tetra Tech’s long-term relationships provide it with institutional knowledge of its clients' programs, past projects and internal resources, which helps it to submit competitive proposals and plans.

Tetra Tech operates a website at, through which it provides information that can be accessed by clients on a self-service basis. This includes information on the company’s services, the industries that it serves, its various operating locations, its management, and its partners.

The company also  publishes contact information, through which customers can get in touch with personnel trained to handle complaints and enquiries.

On its website, Tetra Tech also hosts a news portal, through which it publishes company updates, press releases, blog posts, and presentations for its clients to peruse.

It is additionally able to communicate directly with customers through its various social media accounts, including with  LinkedIn, Facebook, Twitter, and Instagram.

Key Activities

Tetra Tech operates as a provider of consulting, engineering, program management, construction management, and technical services.

It organises its operations into three core operating segments: Government Services Group, through which the company engages in activities with US government clients (federal, state and local) and activities with development agencies worldwide; Commercial/International Services Group through which the company engages in activities with US commercial clients and international clients other than development agencies; and Remediation and Construction Management, through which the company reports the results of the wind-down of its non-core construction activities.

Tetra Tech’s solutions span the entire life cycle of consulting and engineering projects and include applied science, research and technology, engineering, design, construction management, operations and maintenance, and information technology.

Key Partners

Tetra Tech works in close conjunction with a network of partner companies and organisations, including commercial entities and institutions.

These partners can be organised broadly into the following categories:

  • Supplier and Vendor Partners, comprising suppliers of equipment and software used in the company’s provision of its core services, as well as suppliers of materials and tools used in support of construction projects;
  • Government Partners, comprising national and federal government service providers with which the company works on various development projects;
  • Testing and Laboratory Partners, comprising technology and engineering companies with which the company collaborates on testing and research projects as part of its development and implementation of innovative solutions;
  • Commercial Partners, comprising a range of companies operating in the engineering, industrial, and infrastructure sectors with which the company works on joint projects around the world; and
  • Specialty Partners, comprising a range of specialty providers of niche services, and specialised providers of consulting and advisory services.

Tetra Tech lists several ‘Highlighted Partnerships’ on its website. These include tie-ups with Restoration Services Inc, TerranearPMC, IO Environmental and Infrastructure Inc, Oneida Total Integrated Enterprises, and American Integrated Services.

Key Resources

Tetra Tech’s success is dependent on its ability to provide effective, efficient, and innovative solutions to its clients. As such, the company’s key resources are its personnel – notably its skilled workers and experienced executive team, its international network of offices, its partnerships, its proprietary information and intellectual properties, and its IT and communications infrastructure.

Tetra Tech operates approximately 400 offices worldwide. It also notably has several patent applications filed with the US Patent and Trademark Office, including for a ‘light emission power control apparatus and method’, a ‘sensor synchronisation apparatus and method’, and a ‘ protective shroud for enveloping light from a light emitter for mapping of a railway track’.

Cost Structure

Tetra Tech incurs costs in relation to its research and its development of intellectual properties, the operation of its network of offices – including occupancy and utility costs, the payment of salaries and benefits to its personnel, the procurement of equipment and materials, the procurement of services from subcontractors, the management of its partnerships, and the maintenance and development of its IT and communications infrastructure.

In 2018, Tetra Tech recorded total subcontractor costs in the amount of USD 2.2 billion, other cost of revenue in the amount of USD 1.82 billion, and total selling, general, and administrative costs in the amount of USD 190.1 million.

Revenue Streams

Tetra Tech generates revenue through the provision of consulting services to clients across a range of industries. The company derives its revenue under contracts agreed on a case-by-case basis with individual clients.

In 2018, Tetra Tech generated revenue for the year totalling USD 3.0 billion, up on the USD 2.8 billion recorded by the company in 2017

More than half, around USD 1.7 billion, was generated by the company’s Government Services Group, while the company’s Commercial International Services Group recorded revenue of USD 1.3 billion.

Our team

Dan L. Batrack,
Chairman, President, and Chief Executive Officer

info: Dan L. Batrack (“Batrack”) has served as Tetra Tech’s Chairman and President since 2008, and has been the company’s Chief Executive Officer since 2005. He is responsible for leading the company’s overall strategic direction and for coordinating the company’s board of directors. Batrack joined one of Tetra Tech’s predecessor companies in 1980, where her served in roles of increasing responsibility over a period of 22 years, including in positions such as Project Scientist, Project Manager, Office Manager, Operations Manager and Vice President. Prior to assuming his current role at Tetra Tech, Batrack served as the company’s Senior Vice President from November 2002, Executive Vice President from 2004, and Chief Operating Officer from October 2004.

Steven M. Burdick,
Executive Vice President and Chief Financial Officer

info: Steven M. Burdick (“Burdick”) has served as Tetra Tech’s Chief Financial Officer and Treasurer since 2011. He is responsible for leading the company’s financial management operations, including the activities of its treasury, investor relations, accounting, tax, and internal audit units. Burdick began his career in 1986 at Ernst and Young, where he held a number of roles culminating in a spell as a senior manager. In 2000, he joined TRW Ventures as Chief Financial Officer, a role he held until 2002, when he was appointed Chief Financial Officer of Aura Systems Inc. Burdick joined Tetra Tech in 2003 as Vice President of Management Audit.

Craig L. Christensen,
Senior Vice President and Chief Information Officer

info: Craig L. Christensen (“Christensen”) has served as Senior Vice President and Chief Information Officer since 2006. He is responsible for the overseeing the company’s information services and technologies, including the implementation of its enterprise resource planning system and management of the shared services organisation. Christensen joined Tetra Tech in 1998 through the company’s acquisition of Tetra Tech NUS Inc. Since joining the company he has served in several leadership roles, including spells as Vice President and Controller and Vice President of Finance and Systems. Christensen previously worked in executive positions at Halliburton subsidiaries Brown and Root Services and Landmark Graphics, where his responsibilities included contracts administration, finance, and system development, prior to which he held positions at Burroughs Corporation and Apple Computer.