Tetra Tech Inc (TTEK) SEC Filing 10-K Annual report for the fiscal year ending Sunday, September 30, 2012

Exhibit 99.1

November 7, 2012

Tetra Tech Reports Fourth Quarter and Fiscal 2012 Results

·                 Q4 Net Revenue up 13% to $536 million

·                 FY12 Net Revenue up 13% to $2.02 billion

·                 Record backlog up 10% to $2.14 billion

Pasadena, California. Tetra Tech, Inc. (NASDAQ: TTEK) today announced results for the fourth quarter and fiscal year ended September 30, 2012.

Fourth Quarter Results

Revenue in the fourth quarter was $719.4 million compared to $675.7 million in the same period last year. Revenue, net of subcontractor costs1, in the fourth quarter was $536.3 million, up 12.7% compared to $475.9 million in the same period last year. Operating income was $48.5 million, up 11.6% compared to $43.4 million in the fourth quarter last year. Diluted earnings per share (EPS) were $0.47, up 11.9% compared to $0.42 in the fourth quarter last year. Diluted EPS included costs related to the reorganization of the Company’s operations, including the elimination of the Engineering and Architecture Services (EAS) segment, and purchase accounting-related adjustments, resulting in a net diluted EPS reduction of $0.01. Earnings before interest, taxes, depreciation, and amortization (EBITDA2), were $62.9 million, up 11.5% compared to $56.4 million in the fourth quarter last year. Backlog was a record high $2.14 billion, up 9.7% compared to $1.95 billion at the end of the fourth quarter last year. Cash generated from operations was $29.8 million compared to $33.2 million in the fourth quarter last year.

Fiscal Year Results

Revenue for fiscal 2012 was $2.71 billion compared to $2.57 billion in fiscal 2011. Revenue, net of subcontractor costs, was $2.02 billion, up 12.8% compared to $1.79 billion in fiscal 2011. Operating income was $166.4 million, up 13.6% compared to $146.4 million in fiscal 2011. Diluted EPS were $1.63, up 14.0% compared to $1.43 in fiscal 2011. EBITDA were $222.3 million, up 11.9% compared to $198.6 million in fiscal 2011. Cash generated from operations was $158.0 million, up 20.1% compared to $131.6 million in fiscal 2011.

Tetra Tech’s Chairman and CEO, Dan Batrack commented, “Tetra Tech finished the year with a strong fourth quarter that resulted in 13% net revenue growth and 10% backlog growth. Based on net revenue, our international business is now the largest client sector and the fastest growth market, having grown 19% organically in the fourth quarter. Our record backlog, expansions into Brazil and oil & gas, and the realigned organization provide a solid foundation for continued growth in 2013.”