Every activity (KD 2010 class) in the sector in 2025: companies, employees, revenue, profit and margin.
The aggregate margin is not shown when fewer than 5 companies have one, or when one company carries more than half of the summed profit and loss; use the median margin and the profitable share instead. Profits that cannot be reconciled with revenue and payroll are left out.
The activity title is the code's title in the KD 2010 classification (NACE Rev. 2), which applies to every year shown. The registry now shows titles from the new classification for the same codes, so titles can differ.
| Plumbing, heat and air-conditioning installation |
| 258 |
| 1,061 |
| 92,803,124€ |
| 9,330,928€ |
| 10.1% |
| 3.1% |
| 55.4% |
| 4339 | Other building completion and finishing | 330 | 910 | 66,553,148€ | 3,057,893€ | 4.6% | 2.3% | 47.1% |
| 4213 | Construction of bridges and tunnels | 11 | 80 | 51,498,196€ | 36,428,322€ | Not shown: one company carries more than half of the profit or loss | 9.3% | 45.5% |
| 4333 | Floor and wall covering | 235 | 591 | 35,214,359€ | 2,142,876€ | 6.1% | 3.6% | 53.2% |
| 4291 | Construction of water projects | 23 | 106 | 32,131,723€ | 5,555,662€ | 17.3% | 15.2% | 60.9% |
| 4110 | Development of building projects | 154 | 365 | 29,728,428€ | -3,120,203€ | -10.5% | -14.2% | 22.4% |
| 4312 | Site preparation | 119 | 332 | 26,412,453€ | 3,303,484€ | 12.5% | 3.8% | 55.5% |
| 4299 | Construction of other civil engineering projects n.e.c. | 81 | 211 | 23,643,984€ | -95,304€ | -0.4% | -1.0% | 30.9% |
| 4329 | Other construction installation | 64 | 184 | 20,931,335€ | 2,061,349€ | 9.8% | 2.7% | 48.4% |
| 4212 | Construction of railways and underground railways | 2 | 812 | 17,807,462€ | -4,010,729€ | Not shown: fewer than 5 companies with a margin | — | 0.0% |
| 4222 | Construction of utility projects for electricity and telecommunications | 29 | 165 | 13,696,775€ | -60,662€ | -0.4% | 1.0% | 51.7% |
| 4221 | Construction of utility projects for fluids | 16 | 79 | 12,245,802€ | 616,248€ | 5.0% | 8.0% | 87.5% |
| 4332 | Joinery installation | 83 | 235 | 11,903,882€ | 411,691€ | 3.5% | 1.7% | 57.8% |
| 4391 | Roofing activities | 21 | 214 | 9,250,140€ | 473,962€ | Not shown: one company carries more than half of the profit or loss | 0.1% | 52.4% |
| 4331 | Plastering | 56 | 240 | 8,739,424€ | 901,971€ | 10.3% | -0.5% | 33.9% |
| 4334 | Painting and glazing | 74 | 169 | 8,524,618€ | 547,722€ | 6.4% | 3.2% | 52.7% |
| 4311 | Demolition | 13 | 64 | 3,730,490€ | 195,692€ | 5.2% | -9.7% | 41.7% |
| 4313 | Test drilling and boring | 6 | 17 | 1,091,800€ | 227,512€ | Not shown: one company carries more than half of the profit or loss | 17.1% | 66.7% |