AECOM vs TETRA TECH, INC., two Consulting stocks. A side-by-side on valuation, growth, margins, returns, and what each price is betting.
The one number that splits this pair is free-cash yield: Tetra Tech turns 8.7% of its price into free cash each year, roughly double AECOM's 4.5%, on multiples a point apart, 17.5 and 18.5 times earnings. Same industry, similar client base of governments and infrastructure owners, but Tetra Tech runs the fatter margins, 10.8% operating against 6.5%, the mark of higher-value consulting inside the engineering wrapper. Its 0.8% dividend and 23.6% return on equity round out a tidier set of books. Two firms at nearly the same price per dollar of earnings, one handing back twice the cash: the pair is a quiet lesson in reading past the multiple.
Comparison updated 2026-07-10.
| Metric | ACM | TTEK |
|---|---|---|
| Price | $71.01 | $29.25 |
| Market cap | $9.2B | $7.7B |
| Sector | Consulting | Consulting |
| Stage | Mature | Mature |
| Implied growth (priced in) | -2.3% | +3.4% |
| P/E | 18.5 | 17.5 |
| P/B | 3.71 | 4.11 |
| P/S | 0.57 | 1.49 |
| EV/EBITDA | 7.8 | 12.3 |
| Revenue growth | -0.4% | -6.0% |
| Gross margin | 7.8% | 17.6% |
| Operating margin | 6.5% | 10.8% |
| Net margin | 3.2% | 8.6% |
| Return on equity | 20.4% | 23.6% |
| Return on assets | 4.2% | 10.1% |
| Return on invested capital | 34.7% | 16.6% |
| FCF yield | 4.5% | 8.7% |
| Dividend yield | — | 0.8% |
| Debt / equity | 0.03 | 0.47 |
| Current ratio | 1.11 | 1.25 |
| Altman Z (solvency) | 1.87 | 7.99 |
| Piotroski F (quality) | 6 / 9 | 4 / 9 |
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The stronger value is highlighted per metric where one is strictly better on that single number; it is not an overall verdict on either company. For informational and research purposes only. Not investment advice. Not a recommendation to buy, sell, or hold any security. boothcheck is not a registered investment adviser. Past performance does not guarantee future results.