The Standard Model (SM) of particle physics describes fundamental particles and their interactions, including the Higgs boson. However, issues like dark matter, neutrino masses, and the matter-antimatter asymmetry highlight the need for physics beyond the Standard Model (BSM).The High-Luminosity Large Hadron Collider (HL-LHC) will investigate rare processes, while future lepton colliders like FCC-ee will facilitate precision measurements of new physics.This workshop aims to gather theorists, phenomenologists, and experimentalists (data analysis and detector) to discuss BSM searches and