The core activity of Elderly Consulting SA encompasses three main areas:
1. **Trust Services**: The company provides fiduciary services, including account management, tax consulting, and other related services.
2. **Energy**: Elderly Consulting SA offers specialized consulting and services in the field of renewable energy, including the planning and implementation of energy projects.
3. **Design and Engineering**: The company provides engineering services, including the planning and implementation of projects in the field of renewable energy, building technology, and other related areas.
Overall, the company focuses on providing services in the fields of renewable energy, trust services, and engineering, with an emphasis on sustainability and innovation.