Actividades de arquitectura e ingeniería y actividades conexas de consultoría técnica
Division 711 of the classification the tax register files firms under, and the 3 activities inside it. 167,434 formal workers in 21,671 firms in 2024, across 240 communes.
The register files a firm at its tax address, so this is where the work is declared, not where it happens. The names are the SII's own, in Spanish, on both editions of this site: they are the wording a firm is filed under, not prose to translate.
Twenty years
2005–2024The whole series, not two ends of it: a division that halved over twenty years and one that halved last year give the same percentage, and only the line tells them apart.
Projected, five years
Prophet · 80%What is inside it
3The activities this division is made of, nationally. This is the finest the register goes: below it there is no further split published.
Where it is declared
2024Most workers
Largest share of the commune
Communes with at least 100 workers in it, so that a share is a share of something.
By region
| Region | Workers | Firms | Share of its payroll | Share of the country's |
|---|---|---|---|---|
| Metropolitana | 106,802 | 11,497 | 1.85% | 63.8% |
| Biobío | 14,763 | 1,777 | 2.65% | 8.8% |
| Antofagasta | 13,412 | 946 | 5.82% | 8.0% |
| Valparaíso | 10,154 | 2,013 | 1.50% | 6.1% |
| O'Higgins | 5,941 | 671 | 1.37% | 3.5% |
| Atacama | 3,945 | 245 | 4.28% | 2.4% |
| Coquimbo | 2,573 | 676 | 1.14% | 1.5% |
| Tarapacá | 2,470 | 319 | 2.21% | 1.5% |
| Maule | 2,166 | 776 | 0.45% | 1.3% |
| Los Lagos | 1,635 | 941 | 0.44% | 1.0% |
| Araucanía | 1,244 | 738 | 0.41% | 0.7% |
| Los Ríos | 867 | 376 | 0.81% | 0.5% |
| Ñuble | 738 | 283 | 0.48% | 0.4% |
| Magallanes | 304 | 162 | 0.39% | 0.2% |
| Aysén | 234 | 135 | 0.66% | 0.1% |
| Arica y Parinacota | 186 | 116 | 0.34% | 0.1% |
Sales are not on this page. At this depth the SII withholds them in three of every four commune cells — a comuna where one firm would be the figure — so a map of sales would be a map of where the source happened not to withhold. Firms and workers are published everywhere and reconcile to the unit against the register's own national total. The checks are here.