Compare
Willdan Group, Inc. vs Tetra Tech Inc vs Aecom vs Acorn Energy, Inc.
| Latest fiscal year | Willdan Group, Inc. WLDN | Tetra Tech Inc TTEK | Aecom ACM | Acorn Energy, Inc. ACFN |
|---|---|---|---|---|
| Year ended | 2026-01-02 | 2025-09-28 | 2025-09-30 | 2025-12-31 |
| Revenue | $681.55M | $5.44B | $16.14B | $11.48M |
| Revenue growth (YoY) | +20.5% | +4.7% | +0.2% | +4.5% |
| Gross margin | 37.5% | 17.7% | 7.5% | 76.8% |
| Operating margin | 6.5% | 7.5% | 6.4% | 17.3% |
| Net margin | 7.7% | 4.6% | 3.5% | 21.9% |
| Net income | $52.56M | $247.95M | $561.77M | $2.51M |
| EPS (Diluted) | $3.49 | $0.93 | $4.21 | $0.99 |
| Operating cash flow | $80.08M | $457.69M | $821.60M | $2.09M |
| Free cash flow | $70.70M | $439.05M | $684.93M | n/a |
| Cash & equivalents | $65.92M | $167.46M | $1.59B | $4.45M |
| Total assets | $544.21M | $4.28B | $12.20B | $13.33M |
| Total liabilities | $239.36M | n/a | $9.50B | $5.02M |
| Shareholders' equity | $304.85M | $1.78B | $2.70B | $8.32M |
| Return on year-end equity | 17.2% | 13.9% | 20.8% | 30.2% |
| Shares outstanding | 14.76M | 261.42M | 131.78M | 2.50M |
Revenue, most recent five fiscal years
| Fiscal year | Willdan Group, Inc. | Tetra Tech Inc | Aecom | Acorn Energy, Inc. |
|---|---|---|---|---|
| Latest | $681.55M Ended 2026-01-02 | $5.44B Ended 2025-09-28 | $16.14B Ended 2025-09-30 | $11.48M Ended 2025-12-31 |
| 1 year earlier | $565.80M Ended 2024-12-27 | $5.20B Ended 2024-09-29 | $16.11B Ended 2024-09-30 | $10.99M Ended 2024-12-31 |
| 2 years earlier | $510.10M Ended 2023-12-29 | $4.52B Ended 2023-10-01 | $14.38B Ended 2023-09-30 | $8.06M Ended 2023-12-31 |
| 3 years earlier | $429.14M Ended 2022-12-30 | $3.50B Ended 2022-10-02 | $13.15B Ended 2022-09-30 | $7.00M Ended 2022-12-31 |
| 4 years earlier | $353.75M Ended 2021-12-31 | $3.21B Ended 2021-10-03 | $13.34B Ended 2021-09-30 | $6.78M Ended 2021-12-31 |