[TTEK] Tetra Tech Thesis 2026: Water Environmental Drives Federal IIJA Engineering Capital Return

Key Takeaways

• TTEK FY2025 (September year-end) revenue ~$5.50-5.85B (+5-10% YoY) with adj. EPS ~$3.55-3.85 reflecting continued post-2024 $5.50-5.85B aggregate Water + Environment + Infrastructure Engineering Consulting revenue ($3.20-3.40B aggregate Government Services Group (GSG) + ~$2.30-2.45B aggregate Commercial/International Services Group (CIG)) under continued President + CEO Dan Batrack since 2005 (~20-year tenure as Tetra Tech CEO; selected primary post-2005 architect of Tetra Tech specialty engineering consolidation).
• Government Services + Federal IIJA + Water Pipeline (~$3.20-3.40B revenue): ~$3.20-3.40B aggregate Government Services Group (GSG) revenue (~58%+ revenue mix); selected primary US Federal Government (USAID + EPA + Army Corps of Engineers + Department of Defense + DOE + USDA) + State + Local Government Water + Environment + Climate + Infrastructure consulting + selected various aggregate ~$5-6B aggregate Government backlog + selected various aggregate ~85%+ aggregate prime contractor exposure + selected primary post-November 2021 Bipartisan Infrastructure Law (IIJA) ~$1.2T+ aggregate funding cycle exposure (Water + Environment + Climate + Resilience).
• Commercial + International + High-Performance Engineering Pipeline: selected continued post-2005 selected various aggregate Commercial/International Services Group (CIG) ~$2.30-2.45B aggregate revenue (~42%+ aggregate revenue mix; selected primary Commercial + International Water + Energy + Mining + Industrial + Climate + Infrastructure consulting) + selected various aggregate Australia + UK + Canada + Europe + Asia Pacific + Latin America + selected various aggregate global footprint + selected various aggregate ~28,000+ aggregate consulting + engineering professional employees + selected various aggregate ~$5-6B aggregate aggregate Commercial backlog.
• Capital position + balance sheet: ~$0.20 aggregate annual dividend (~6% aggregate payout ratio; ~0.4-0.6% aggregate dividend yield); ~$50-150M aggregate FY2025 buybacks; aggregate capital return ~$70-205M FY2025; net leverage ~1.5-2.0x Net Debt/EBITDA; investment-grade Baa3/BBB- credit rating; ~265-270M diluted shares; weighted average debt maturity ~5-6 years.
• FY2026 thesis catalysts: Government Services + Federal IIJA + Water pipeline (~$3.20-3.40B + $5-6B Government backlog + post-November 2021 IIJA $1.2T+ funding cycle) + Commercial + International + High-Performance Engineering pipeline ($2.30-2.45B + ~$5-6B Commercial backlog) + selected ~28,000+ aggregate consulting + engineering professional employees + selected continued post-2024 organic growth + tuck-in M&A capacity.

Company Background

Tetra Tech, Inc. (NASDAQ: TTEK) is one of the largest US specialty Water + Environment + Infrastructure Engineering Consulting companies, founded 1966 as Tetra Tech by Henri Hodara + selected various aggregate co-founders in Pasadena California (~59-year heritage; selected pioneer Water + Environment Engineering Consulting). Selected post-1991 NASDAQ IPO; selected post-1991-2025 selected various aggregate ~$3B+ aggregate cumulative tuck-in M&A platform expansion (selected post-2017 ~$355M+ Norman Disney & Young (NDY) acquisition + selected post-2021 ~$465M+ RPS Group acquisition (UK Engineering specialty) + selected various aggregate Water + Environmental + Engineering acquisitions); selected post-2005 Dan Batrack CEO appointment (selected primary post-2005 architect of Tetra Tech specialty engineering consolidation); selected post-November 2021 Bipartisan Infrastructure Law (IIJA) ~$1.2T+ aggregate funding cycle exposure (Water + Environment + Climate + Resilience); HQ Pasadena California; ~28,000-30,000 employees globally; selected various aggregate global Water + Environment + Infrastructure Engineering Consulting footprint (US + Australia + UK + Canada + Europe + Asia Pacific + Latin America).

TTEK operates 2 primary segments: Government Services Group (GSG) 58%+ revenue ($3.20-3.40B), Commercial/International Services Group (CIG) 42%+ revenue ($2.30-2.45B). Geographic mix: US ~70%+ + Australia + UK + Canada + Europe + Asia Pacific + Latin America aggregate ~30%.

Capital position: ~$0.20 aggregate annual dividend (~6% aggregate payout ratio; ~0.4-0.6% aggregate dividend yield); ~$50-150M aggregate FY2025 buybacks; aggregate capital return ~$70-205M FY2025; net leverage ~1.5-2.0x Net Debt/EBITDA; investment-grade Baa3/BBB- credit rating; ~265-270M diluted shares; weighted average debt maturity ~5-6 years.

Government Services + Federal IIJA + Water Pipeline (~$3.20-3.40B Revenue)

The Government Services + Federal IIJA + Water pipeline is TTEK's foundation thesis: ~$3.20-3.40B aggregate Government Services Group (GSG) revenue (~58%+ revenue mix) + selected primary US Federal Government (USAID + EPA + Army Corps of Engineers + Department of Defense + DOE + USDA) + State + Local Government Water + Environment + Climate + Infrastructure consulting + selected various aggregate ~$5-6B aggregate Government backlog + selected various aggregate ~85%+ aggregate prime contractor exposure + selected primary post-November 2021 Bipartisan Infrastructure Law (IIJA) ~$1.2T+ aggregate funding cycle exposure (Water + Environment + Climate + Resilience). Selected primary TTEK platform: ~85%+ prime contractor exposure + post-November 2021 IIJA Water + Environment + Climate funding cycle.

FY2025 GSG dynamics ($3.20-3.40B aggregate GSG revenue): selected continued post-2024 ~+5-10% aggregate GSG revenue growth (cyclical IIJA Water + Environment funding cycle + selected various aggregate USAID + EPA + Army Corps + DoD + DOE consulting demand) + ~$3.20-3.40B aggregate GSG revenue + selected various aggregate ~$5-6B aggregate Government backlog + selected various aggregate ~85%+ aggregate prime contractor exposure. Selected post-2024 ~$1.50-2.50 incremental annual EPS contribution as Government Services + Federal IIJA + Water pipeline drives incremental margin (post-November 2021 IIJA funding cycle continued ramp).

FY2026 catalyst: continued Government Services + Federal IIJA + Water pipeline + ~$1.50-2.50 incremental annual EPS contribution under continued Dan Batrack leadership (~20-year tenure). Selected aggregate ~$3.45-3.65B aggregate GSG revenue + selected various ~+5-8% aggregate GSG growth + selected various aggregate ~$5-6B aggregate Government backlog stability + selected various aggregate IIJA Water + Environment + Climate funding cycle continuation + selected various aggregate Trump administration Federal Government priorities. Risks: AECOM (ACM) + Jacobs Engineering (J) + Stantec + WSP + ARCADIS + selected various aggregate Water + Environment + Infrastructure Engineering Consulting competitive displacement + Trump administration USAID + EPA Federal budget cycle considerations + selected various aggregate Federal Government contract execution considerations.

Commercial + International + High-Performance Engineering Pipeline

The Commercial + International + High-Performance Engineering pipeline is TTEK's primary growth thesis: selected continued post-2005 selected various aggregate Commercial/International Services Group (CIG) ~$2.30-2.45B aggregate revenue (~42%+ aggregate revenue mix; selected primary Commercial + International Water + Energy + Mining + Industrial + Climate + Infrastructure consulting) + selected various aggregate Australia + UK + Canada + Europe + Asia Pacific + Latin America + selected various aggregate global footprint + selected various aggregate ~28,000+ aggregate consulting + engineering professional employees + selected various aggregate ~$5-6B aggregate aggregate Commercial backlog.

FY2025 Commercial + International dynamics: selected primary post-2017 Norman Disney & Young (NDY) + post-2021 RPS Group (UK Engineering specialty) integration + selected various aggregate ~$2.30-2.45B aggregate CIG revenue + selected various aggregate ~$5-6B aggregate Commercial backlog + selected various aggregate Australia + UK + Canada + Europe + Asia Pacific + Latin America footprint expansion. Selected post-2024 ~$0.85-1.50 incremental annual EPS contribution as Commercial + International + High-Performance Engineering pipeline drives incremental margin.

FY2026 catalyst: continued Commercial + International + High-Performance Engineering pipeline + ~$0.85-1.50 incremental EPS contribution. Selected aggregate ~$2.45-2.65B aggregate CIG revenue + selected various aggregate ~+5-8% aggregate CIG growth + selected various aggregate ~$5.5-6.5B aggregate Commercial backlog + selected various aggregate Australia + UK + Canada + Europe + Asia Pacific + Latin America footprint expansion + selected various aggregate ~28,000+ aggregate consulting + engineering professional employees. Risks: AECOM + Jacobs Engineering + Stantec + WSP + ARCADIS + Worley + ENGIE + selected various aggregate global Engineering Consulting competitive displacement + selected various aggregate Australia + UK + Canada + Europe Mining + Energy cycle considerations + Federal Reserve interest rate cycle considerations + post-2017 Norman Disney & Young + post-2021 RPS Group integration considerations.

Capital Position + Balance Sheet

Capital position + balance sheet: ~$0.20 aggregate annual dividend (~6% aggregate payout ratio; ~0.4-0.6% aggregate dividend yield) + ~$50-150M aggregate FY2025 buybacks + aggregate capital return ~$70-205M FY2025 + net leverage ~1.5-2.0x Net Debt/EBITDA + investment-grade Baa3/BBB- credit rating + ~265-270M diluted shares + weighted average debt maturity ~5-6 years.

FY2026 catalyst: continued ~$70-220M aggregate annual capital return + selected continued ~0.4-0.6% aggregate dividend yield + selected continued ~$0.20-0.25 aggregate annual dividend + selected continued ~1.5-2.0x net leverage + selected various aggregate ~$50-150M aggregate annual buybacks. Selected ~6% aggregate payout ratio + selected investment-grade Baa3/BBB- credit rating support continued capital return + Government Services + Commercial/International + tuck-in M&A capacity.

Key Core Metrics

• FY2025 (September year-end) revenue ~$5.50-5.85B (+5-10% YoY) vs $5.20B FY2024; adj. EPS ~$3.55-3.85
• 2 segments: Government Services Group (GSG) ~58%+ ($3.20-3.40B) + Commercial/International Services Group (CIG) ~42%+ ($2.30-2.45B)
• Geographic mix: US ~70%+ + Australia + UK + Canada + Europe + Asia Pacific + Latin America ~30%
• Government Services: US Federal Government (USAID + EPA + Army Corps of Engineers + Department of Defense + DOE + USDA) + State + Local
• Government backlog: ~$5-6B aggregate; ~85%+ prime contractor exposure
• IIJA exposure: post-November 2021 Bipartisan Infrastructure Law $1.2T+ funding cycle
• Commercial/International Services: Water + Energy + Mining + Industrial + Climate + Infrastructure
• Commercial backlog: ~$5-6B aggregate
• ~28,000+ aggregate consulting + engineering professional employees
• Net leverage ~1.5-2.0x Net Debt/EBITDA
• ~265-270M diluted shares; ~$70-205M total capital return FY2025
• Dividend ~$0.20 annual (~6% payout; ~0.4-0.6% yield)
• ~$50-150M aggregate FY2025 buybacks
• Investment-grade Baa3/BBB- credit rating

Market Evaluation

TTEK FY2026 market evaluation: at ~$30-45 share price + ~265-270M diluted shares = ~$8-12B market cap; ~$0.20 aggregate annual dividend + ~0.4-0.6% aggregate dividend yield. Selected primary TTEK peers: AECOM (ACM, ~$15-18B Mcap; competitor in Engineering Consulting) + Jacobs Engineering (J, ~$15-18B) + Stantec (Canadian; ~$10-13B) + WSP (Canadian; ~$15-18B) + ARCADIS (Dutch; ~$3-5B) + Worley (Australian) + ENGIE + selected various aggregate global Water + Environment + Infrastructure Engineering Consulting companies. Selected TTEK ~25-30x P/E + selected ~16-20x EV/EBITDA + selected ~0.4-0.6% dividend yield + selected aggregate ~$5.85-6.30B aggregate FY2026 revenue + selected aggregate ~$3.85-4.20 aggregate FY2026 EPS + selected aggregate ~$70-220M aggregate FY2026 capital return + selected aggregate Government Services + IIJA + Commercial/International pipeline. FY2026 base case: ~$5.85-6.30B aggregate revenue + ~$3.85-4.20 adj. EPS + ~$70-220M aggregate capital return. Bull case: post-November 2021 IIJA funding cycle continued ramp + Government Services backlog conversion + Commercial/International expansion + Federal Reserve interest rate cuts + Trump administration Federal Government priorities + post-2017 NDY + post-2021 RPS Group integration synergies drives ~$6.0-6.45B aggregate revenue + ~$4.05-4.50 EPS. Bear case: AECOM + Jacobs Engineering + Stantec + WSP + ARCADIS + Worley + ENGIE competitive intensification + Trump administration USAID + EPA Federal budget cycle considerations + Federal Government contract execution considerations + Australia + UK + Canada + Europe Mining + Energy cycle considerations + post-2017 Norman Disney & Young + post-2021 RPS Group integration considerations + Federal Reserve interest rate cycle considerations + post-2005 Dan Batrack CEO succession planning considerations drives ~$5.50-5.85B revenue + ~$3.30-3.65 EPS. The thesis depends on Government Services + Federal IIJA + Water pipeline + Commercial + International + High-Performance Engineering pipeline + ~$5-6B Government + Commercial backlogs.