The company's core activity encompasses a wide range of services and activities that can be divided into several areas:
1. **Construction and Soil Treatment**: This includes Delachaux (Lime Spreading), StabiSol (Soil Stabilization and Foundation Work) and Eds (Ripping-De-compaction-Seeding). These activities focus on soil treatment and stabilization as well as foundation work.
2. **Environmental Services**: Under the Environment division, the company offers a broad range of services including semi-hydraulic works (e.g. for roofs, walls, and facades), pruning and maintenance work (including lawn mowing, tree felling, and pruning), waste disposal and small demolition work, as well as snow removal.
3. **Transportation**: The company provides general transportation services.
4. **Metal Construction and Equipment Rental**: In addition to construction and environmental services, the company also offers metal construction work (Metal Assembly) and equipment rental (Equipment Rental).
Overall, the company's core activity can be described as a comprehensive service provider in the fields of construction, environment, transportation, and metal construction.