UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-19655 TETRA TECH, INC. (Exact name of registrant as specified in its charter) Delaware 95-4148514 (State or other jurisdiction ...

Financial Data and Key Metrics Changes - In Q1 2024, net revenue increased by 38% to $1.02 billion, with EBITDA rising by 32% to $131 million, resulting in an EPS of $1.40, the highest for a first quarter [8][7][8] - The company raised its full-year guidance for net revenue and earnings per share, projecting a 20% year-over-year growth rate [7][8] Performance by Business Lines - The Government Services Group (GSG) revenue grew by 25% to $443 million, with a margin of 14.3%, driven by inland waterways and coastal flood protection programs [11] - The Commercial International Group (CIG) saw a 49% revenue increase with a margin of 12.5%, with significant contributions from the RPS acquisition and a 10% organic growth rate [12] Market Data and Key Metrics Changes - Revenue from US Federal clients surged by 49%, primarily due to the Department of Defense and USAID Resiliency Consulting [9] - International revenue increased by 74%, particularly in the UK and Australia, contributing to the overall growth [36] Company Strategy and Industry Competition - Tetra Tech focuses on the entire water cycle, with approximately 85% of annual revenue derived from water-related services, emphasizing its leadership in the water and environmental consulting sector [21][20] - The company is actively pursuing acquisitions aligned with its technical leadership in water and environmental services, indicating a strong pipeline for future growth [18] Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in the strong demand for differentiated services in water and environmental markets, with Q1 results setting new records for revenue and profitability [60] - The company anticipates continued growth in federal revenues regardless of the political administration, supported by long-term contracts [56][58] Other Important Information - Cash flows from operations exceeded net income by over 152%, with a DSO metric of 55 days, reflecting strong operational efficiency [15][41] - The Board approved a 13% increase in dividends, marking the 35th consecutive quarterly dividend with double-digit increases [44] Q&A Session Summary Question: What is driving the confidence behind the raised guidance? - Management highlighted new contract wins, including significant awards from the Army Corps of Engineers, contributing to increased contract capacity and revenue expectations [90] Question: Can you elaborate on the margin improvement from RPS integration? - The margin uplift of 600 basis points was primarily due to cost synergies and operational efficiencies achieved through the integration of RPS into Tetra Tech's systems [103][118] Question: How is the utilization for the combined business trending? - Utilization rates for RPS employees who transitioned to Tetra Tech's ERP system have improved and are approaching Tetra Tech's levels, with further integration planned [123]

tetra tech Leading with Science® 4 Net Revenue by Customer (Q1-24) | --- | --- | --- | --- | |-----------------------------------|---------------|-------|----------------------------------------------------------------------------| | Customer | % of Net Rev. | Y/Y | Comments | | U.S. Federal U.S. State and Local | 30% | +49% | • Department of Defense up • USAID / Ukraine up | | U.S. State & Local | 11% | +16%* | • Digital Water up • Disaster response down Y/Y (FY23 Hurricane Ian) | | International U.S. Comm ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ____________________________________________________________________________ FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended October 1, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period from to Commission File Number 0-19655 _________________________________________________________ ...

Tetra Tech, Inc. (NASDAQ:TTEK) Q4 2023 Earnings Conference Call November 16, 2023 11:00 AM ET Company Participants Dan Batrack - Chairman and CEO Steve Burdick - Chief Financial Officer Jill Hudkins - President Conference Call Participants Tate Sullivan - Maxim Group Andrew Wittmann - Baird Ryan Connors - Northcoast Research Michael Dudas - Vertical Research Partners Operator Good morning. And thank you for joining the Tetra Tech Earnings Call. As a reminder, Tetra Tech is also simulcasting this presentatio ...

EARNINGS CALL Q4-23November 16, 2023 Dan Batrack, Chairman & CEO Steve Burdick, Executive VP & CFO Jill Hudkins, President WATER ENVIRONMENT SUSTAINABLE INFRASTRUCTURE Leading with Science® Forward Looking Statements & Non-GAAP Financial Measures All statements in this communication other than statements of historical fact are "forward-looking statements" for purposes of federal and state securities laws, including any statements of the plans, strategies and objectives for future operations, profitability, ...

Financial Data and Key Metrics Changes - Revenue increased by 36% year-over-year, from $890 million to $1.21 billion [6] - EBITDA income rose by 33% year-over-year, reaching a record high of $119 million [6] - Backlog increased to a new high of $4.39 billion, up 25% from last year [6][9] - Legacy Tetra Tech's revenue without RPS was $989 million, up 11% year-over-year [6] - Earnings per share increased by 19% from the prior year [6] Business Line Data and Key Metrics Changes - Government Services Group (GSG) segment grew by 16% year-over-year, with margins increasing to 14% [8] - Commercial/International Group (CIG) segment grew by 55% year-over-year, primarily due to the addition of RPS [8] - U.S. federal client work increased by 30%, driven by growth in water and environmental programs [6] - State and local revenues were up 16% year-over-year, excluding extraordinary disaster response programs [7] - U.S. commercial net revenues increased by 22% year-over-year, driven by renewable energy and environmental assessments [7] Market Data and Key Metrics Changes - International revenue, primarily driven by RPS, increased by 68% year-over-year [7] - Significant new contract capacity awarded in the U.S. and the U.K. for water programs [9][10] Company Strategy and Development Direction - The company is focused on leveraging revenue synergies from the RPS Group and increasing funding from U.S. federal stimulus programs [3][15] - Tetra Tech Delta technologies are being utilized to enhance profit margins without increasing headcount [4][5] - The company aims to increase EBITDA margins from RPS from under 5% in fiscal 2022 to over 13% by fiscal 2025 [11][12] Management's Comments on Operating Environment and Future Outlook - Management expressed optimism about the future, citing strong demand for services in water, environment, and sustainable infrastructure [22] - The integration of RPS is exceeding expectations, contributing to a robust pipeline of opportunities [22][23] - The company anticipates continued growth driven by federal funding and climate change commitments [23] Other Important Information - Cash flows from operations totaled $133 million, up 35% year-over-year [10] - The company paid out $14 million in dividends, marking the 37th consecutive quarterly dividend [11] - The net leverage multiple was approximately 1.6, with expectations to reduce it to about 1.4 by year-end [14] Q&A Session Summary Question: What is driving the momentum in the quarter? - Management noted broad-based performance across all end markets, with no single unusual contributor driving the results [24][26] Question: Can the current pace of growth be sustained? - Management indicated strong backlog growth and mid-teens organic growth, suggesting sustainability in growth [30][31] Question: What is driving better-than-expected results from RPS? - The strong workforce and cultural alignment between RPS and Tetra Tech were highlighted as key factors [32][33] Question: Can you elaborate on Tetra Tech Delta? - Tetra Tech Delta encompasses various tools that enhance project efficiency and margins, with significant growth potential [38][40] Question: Are margins in the backlog improving? - Management confirmed that embedded operating margins in the backlog are tending higher due to pricing power and a shift to higher-end work [46][47]

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended July 2, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-19655 TETRA TECH, INC. (Exact name of registrant as specified in its charter) Delaware 95-4148514 (State or other jurisdiction of in ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended April 2, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-19655 TETRA TECH, INC. (Exact name of registrant as specified in its charter) (State or other jurisdiction of incorporation or orga ...

Tetra Tech, Inc. (NASDAQ:TTEK) Q2 2023 Earnings Conference Call May 11, 2023 11:00 AM ET Company Participants Dan Batrack - Chairman and Chief Executive Officer Steve Burdick - Chief financial Officer Jill Hudkins - President Leslie Shoemaker - Chief Sustainability Officer Conference Call Participants Sean Eastman - KeyBanc Tate Sullivan - Maxim Group Andy Wittmann - Baird Michael Dudas - Vertical Research Operator Good morning and thank you for joining the Tetra Tech Earnings Call. As a reminder, Tetra Tec ...