| FY2015 | FY2016 | FY2017 | FY2018 | FY2019 | FY2020 | FY2021 | FY2022 | FY2023 | FY2024 | FY2025 | |
| Gross profit-Domestic building construction | 85.7 | 119.6 | 124.6 | 132.5 | 123.2 | 103.5 | 37.6 | 87.2 | 78.2 | 117.8 | 162.9 |
| Gross profit-Domestic civil engineering | 39.8 | 46.5 | 45.7 | 48.8 | 50.0 | 56.7 | 39.4 | 41.7 | 45.2 | 58.2 | 61.3 |
| Gross profit-Overseas building construction | 0.0 | -0.2 | -0.1 | 0.0 | 0.8 | 0.1 | 0.1 | 0.5 | 0.1 | 0.2 | 0.6 |
| Gross profit-Overseas civil engineering | 5.2 | 0.7 | 3.6 | 3.8 | 5.2 | 0.2 | 1.9 | 3.5 | 3.2 | 3.6 | 3.2 |
| Gross profit-Real estate business/Other | 6.3 | 5.1 | 3.0 | 5.3 | 4.7 | 5.1 | 5.3 | 13.3 | 5.1 | 4.8 | 6.2 |
| Gross profit margin-Domestic building construction | 9.6% | 12.2% | 12.8% | 12.3% | 11.2% | 11.2% | 3.6% | 8.3% | 6.3% | 9.1% | 14.9% |
| Gross profit margin-Domestic civil engineering | 14.9% | 18.0% | 18.0% | 18.1% | 19.1% | 21.6% | 14.9% | 15.7% | 15.8% | 18.8% | 18.0% |
| Gross profit margin-Overseas building construction | -0.5% | -1.5% | -1.5% | 0.0% | 6.7% | 2.4% | 2.8% | 19.1% | 1.8% | 3.5% | 7.1% |
| Gross profit margin-Overseas civil engineering | 17.6% | 2.0% | 11.3% | 17.6% | 27.8% | 1.3% | 5.5% | 11.6% | 11.3% | 12.6% | 10.9% |
| Gross profit margin-Real estate business/Other | 22.1% | 28.3% | 17.1% | 24.7% | 20.1% | 24.5% | 23.5% | 34.4% | 19.7% | 20.1% | 17.4% |