The core activity of B.C.D.T. & Associés SA encompasses three main areas:
1. **Insurance and Pensions Brokerage**: The company offers brokerage services for insurance and pension products, including risk management, financial and cyber insurance, property and liability insurance, personal insurance, occupational and individual pension planning.
2. **Family Office**: B.C.D.T. provides services to families and private individuals, including wealth management, tax planning and consulting.
3. **Trust Services**: The company offers trust services, including payroll management, tax consulting and planning.
Overall, the core activity of B.C.D.T. & Associés SA can be described as a combination of insurance brokerage, wealth management and trust services.