The quest for dark matter and a deeper understanding of the elusive neutrinos are among the great challenges of particle physics for the next decades. LIP is part of these challenges through its engagement in some of the main international collaborations in this area: the neutrino experiment SNO+ at the SNOLAB laboratory in Canada, the dark matter detector LZ at the SURF Laboratory in the USA, and the recently embraced participations in DUNE, the main neutrino experiment of the next decade, and in SHiP, a general-purpose experiment proposed for CERN’s SPS.