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Patrick D. Haun

President, Tetra Tech EMC, Inc.

Pat Haun currently serves as the President of Tetra Tech EMC a wholly owned subsidiary of Tetra Tech Inc. Tetra Tech EMC is a premier provider of a broad spectrum of services to the federal government focusing on defense programs. Tetra Tech EMC provides comprehensive technical and management consulting to the federal government which includes engineering, logistics, information technology and programmatic support services. Tetra Tech is a world wide provider of engineering and consulting services addressing both the public and private markets and is a leader in its field with over 13,000 associates generating more than $2.6B in annual sales.

Mr. Haun joined Tetra Tech EMC’s predecessor company in 1985 as an associate engineer. Mr. Haun was then responsible for providing engineering and analysis services associated with Navy air launched missile ground support and test equipment, including equipment supporting the PHOENIX, Harpoon and Sparrow weapon systems. Mr. Haun was assigned as Director of EMC’s Engineering Division in 1992, providing technical and management leadership for all ongoing support efforts which included in-service engineering for a variety of missile systems, launchers, avionics and test equipment.

In 1994 Mr. Haun was named Vice President of Operations at EMC (Tetra Tech EMC’s predecessor company) and in 1996 was named Sr. Vice President. Mr. Haun was responsible for overseeing all aspects of the company’s operational support to their various customers, which included engineering, information technology solutions, logistics support, program and acquisition management, and environmental support. Following the acquisition of EMC by Tetra Tech Inc. in 2003, Mr. Haun was named President of Tetra Tech EMC. In his current position of President, Mr. Haun is responsible for directing all aspects of the corporations operations and performance and is the driving force behind the development of the company’s strategic focus and business expansion.

Prior to joining Tetra Tech, Mr. Haun worked at Gearhart Industries, a leading oil industry service company. Mr. Haun was responsible for system development and operations for the company’s Pacific Basin MWD Division.

Mr. Haun lives and works in Camarillo California. Mr. Haun received his Bachelor of Science degree in Electrical Engineering from Iowa State University in 1982.

Tetra Tech EMC Corporate | 100 Camino Ruiz, Camarillo, CA 93012 | 805.484.9082 | fax 805.484.4607

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