Tetra Tech Inc (TTEK) Fair Value & Analysis
Industrials · US · Market cap $8.1B · ISIN US88162G1031
What is Tetra Tech Inc really worth?
Tetra Tech Inc
TTEK · US
A solid business, but trading 33% above our fair value of $27.20.
Strengths
Risks
For context
Fair value as of: Aug 13, 2026
From 26 valuation models · updated 22 days ago
Fair value updated Aug 13, 2026, revised from $20.05 to $27.20 (+35.7%) since Jul 16, 2026. Share price +3.6% over the past month.
What runs behind every stock
69 individual criteria per stock, every one traceable See the method →
What matters now
- Solid but not exceptional quality (63/100) and above fair value, neither a clear bargain nor a standout compounder.
- A fairly wide model range ($17.29 to $36.31) leaves room in how you read the outcome.
Price vs Fair Value (5 years)
White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Aug 13, 2026.
How to read this chart
60‑month range $22.49 – $49.87 · fair‑value band $17.29 – $36.31 · the $36.29 price screens above the $27.20 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). 1 fiscal year is left out: there the valuation rested on only a fraction of the usual models. Dashed = 300-day average. As of Aug 13, 2026.
Analysis
Tetra Tech Inc (TTEK) currently trades at $36.29, while our model-based Fair Value estimate is $27.20, implying the stock looks roughly 33.4% overvalued today. The Quality Score stands at 63/100 (solid quality), in the Industrials sector. Bull case: the DCF Models group reads highest at a median of $30.03 per share, and 1 of the 26 models we run sit above the $36.29 price. Bear case: the Dividend Discount group reads lowest at $3.79, and 25 of the 26 models stay below the price. Evidence for this calculation is high.
Over the trailing twelve months, Tetra Tech Inc generated revenue of $4.4B at a net margin of 10.0%. Revenue declined 4.9% year over year. It earns a return on equity of 25.7%. Net debt stands at $820M. Fundamentals as of Aug 13, 2026
Our scenario range runs from $17.29 (bear case) to $36.31 (bull case); at $36.29, the current price sits within that range. Bear and bull are the same models run on conservative and optimistic assumptions (margins, growth, valuation multiples), so a plausible valuation range, not a price target. The share trades about 16% below its 52-week high and 41% above its 52-week low, currently above its 200-day average. For context, the median of 10 Industrials peers we cover trades at −46% fair-value upside, at −25%, TTEK screens cheaper than that median.
Fair Value models
This estimate rests on fiscal year 2025 figures, and about 11 months have passed since. In that time the company retained roughly $1.31 per share, which is 4.8 % of the fair value. The fair value deliberately does not add this in: the models value reported figures, not a projection.
Each model estimates fair value its own way; the Fair Value above is the evidence-weighted, family-balanced blend. Evidence (0–100) measures how completely this model’s inputs are available: well-fed models carry more weight in the blend. The spread across models is intentional, each one stresses a different value driver; dividend models, for instance, come out structurally low when payout is small. Every input is real reported data, nothing guessed.
All 26 models by family
Widest divergence: DCF Models ($30.03) versus Dividend Discount ($3.79). Highest evidence: FCF DCF (78).
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Key figures & financial health
More key figures
Figures from reported company fundamentals · as of Aug 13, 2026. TTM = trailing twelve months.
Quality Score breakdown
Of which business quality 63 · Market factors (momentum, volatility) 54
Non-valuation factor families (profitability, growth, cashflow, financial strength, momentum …), each academically grounded. Valuation itself sits in the Fair Value and is deliberately excluded here to avoid double-counting.
All values are scores from 0 to 100 (100 = best against fixed, research-based bands), not percentages. The three market factors (momentum, 52-week proximity, low volatility) are displayed but carry zero weight in the headline number: market sentiment is not a business property.
About the company
Tetra Tech, Inc. provides consulting and engineering services focusing on water, environment, and sustainable infrastructure in the United States and internationally. The company operates through two segments, Government Services Group (GSG) and Commercial/International Services Group (CIG).
Full company description
Tetra Tech, Inc. provides consulting and engineering services focusing on water, environment, and sustainable infrastructure in the United States and internationally. The company operates through two segments, Government Services Group (GSG) and Commercial/International Services Group (CIG). The GSG segment offers consulting and engineering services, including water resources analysis and water management, environmental monitoring, data analytics, government consulting, waste management, and civil infrastructure master planning and resilient engineering design for facilities, as well as transportation and local development projects primarily to government clients, including federal, state, and local, as well as international development agencies. It also offers sustainable solutions, such as energy management consulting, and greenhouse gas inventory assessment, certification, reduction, and management services. The CIG segment provides consulting and engineering services, including natural resources, energy, and utilities, as well as sustainable infrastructure master planning and engineering design for facilities; and transportation and local development projects to commercial and international clients, including the commercial and government sectors. The company offers early data collection and monitoring, data analysis and information management, science and engineering applied research, engineering design, project management, and operations and maintenance services; climate change consulting; greenhouse gas inventory assessment, certification, reduction, and management services; environmental remediation and reconstruction services, industrial water treatment and reuse services; and engineering services, such as data centers, advanced manufacturing, security systems, training and audiovisual facilities, clean rooms, laboratories, medical facilities, and disaster preparedness facilities. The company was founded in 1966 and is headquartered in Pasadena, California.
Company description, as reported by the company or data provider.
Revenue & earnings trend
FY2021 – FY2025 · reported fiscal years
Tetra Tech Inc reported revenue of $5.4B in FY2025 versus $3.2B in FY2021, a compound +14.1%/yr. Reported net income was $248M in FY2025, compounding +1.6%/yr from FY2021.
of which total revenue +8.4 % · buybacks/dilution +1.6 %
Annual growth per factor. These are factors, not summands: multiplied they give the EPS growth rate, added they do not quite. Start and end points are 3-year averages (details on hover).
TTEK screens 33% overvalued. Compare with Quanta Services, Inc →
Recent news
External third-party headlines (Yahoo Finance, Reuters and others), not an editorial selection.
- Tetra (TTEK) Up 12.9% Since Last Earnings Report: Can It Continue?
- Tetra Tech Awarded $16.8 Million EPA Land Revitalization Technical Services Contract
- TTEK Wins $49M Geospatial and Engineering Services Contract From NOAA
- Tetra Tech Awarded $12.7 Million MCC Engineering Services Contracts
Peer Group
Engineering & Construction · 816 stocks
How this stock ranks against its industry: the green marker is this stock, the band is the typical 25–75% peer range, and the tick is the median.
Valuation Multiples vs Engineering & Construction median · lower = cheaper
Strength profile in five axes (Snowflake)
Five quick dimensions, each 0 to 100: VALUE (fair-value potential), FUTURE (revenue growth), PAST (return on equity), HEALTH (low debt), DIVIDEND (yield). Green = this stock, grey = typical sector peer.
VALUE 0: the price sits above our fair-value range.
Insider activity: 40/100
Values & ESG
Does this company touch areas you may want to avoid? The classification is inferred from sector and industry.
Similar stocks
10 more Engineering & Construction stocks, each showing price versus our Fair Value estimate (as of Aug 13, 2026).
| Stock | Price | Fair Value | vs Fair Value |
|---|---|---|---|
| Quanta Services, Inc PWR | $620.06 | $143.92 | −77% |
| Vinci SA DG | €114.35 | €185.62 | +62% |
| Comfort Systems USA, Inc FIX | $1,615 | $519.97 | −68% |
| Larsen & Toubro Limited LT | ₹4,072 | ₹2,196 | −46% |
| Ferrovial N.V FER | €57.28 | €19.17 | −67% |
| HOCHTIEF Aktiengesellschaft HOT | €426.40 | €203.87 | −52% |
| Samsung C&T Corporation 028260 | 373,000 KRW | 261,411 KRW | −30% |
| EMCOR Group EME | $775.04 | $549.47 | −29% |
| MasTec, Inc MTZ | $241.00 | $100.00 | −59% |
| Bouygues SA EN | €46.65 | €65.67 | +41% |
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