1. Introduction

2. BEAST sample  
2.1. Sample selection  
2.2. Membership of Sco-Cen  
2.3. Individual ages  
2.4. Stellar masses  
2.5. Multiplicity  
2.6. Discs  

3. Observations

4. Data reduction and analysis

5. Results and discussion  
5.1. Contrast  
5.2. Faint companion candidates  
5.3. Binary companions in the SPHERE images  

6. Conclusions