  We analyse the complementarity between Lepton Flavour Violation (LFV) and LHC
experiments in probing the Supersymmetric (SUSY) Grand Unified Theories (GUT)
when neutrinos got a mass via the see--saw mechanism. Our analysis is performed
in an SO(10) framework, where at least one neutrino Yukawa coupling is
necessarily as large as the top Yukawa coupling. Our study thoroughly takes
into account the whole RG running, including the GUT and the right handed
neutrino mass scales, as well as the running of the observable neutrino
spectrum. We find that the upcoming (MEG, SuperKEKB) and future (PRISM/PRIME,
Super Flavour factory) LFV experiments will be able to test such SUSY framework
for SUSY masses to be explored at the LHC and, in some cases, even beyond the
LHC sensitivity reach.
