1 INTRODUCTION  
2 SAMPLE PROPERTIES  
2.1 Target Selection  
2.2 Stellar Ages  
2.3 Stellar Masses  
3 OBSERVATIONS AND DATA REDUCTION  
3.1 Detection Limits  
4 RESULTS  
4.1 SPHERE Astrometry and Photometry  
4.2 Common Proper Motion Confirmation  
4.3 Companion Spectra  
4.4 FORECAST (Finely Optimized Retrieval of Companions of Accelerating Stars)  
4.5 HIP 21152 B: A New Bound Substellar Companion in the Hyades  
4.6 HIP 29724 B: A New High Mass Brown Dwarf  
4.7 HD 60584 B and HIP 63734 B: Two More Potential Low Mass Brown Dwarf Candidate Companions  
5 DISCUSSION  
5.1 Comparison with Blind Surveys  
5.2 Limitations  
6 CONCLUSIONS