  We consider the production of a heavy neutrino and its possible signals at
the Large Hadron-electron Collider (LHeC) in the context of an inverse-seesaw
model for neutrino mass generation. The inverse seesaw model extends the
Standard Model (SM) particle content by adding two neutral singlet fermions for
each lepton generation. It is a well motivated model in the context of
generating non-zero neutrino masses and mixings. The proposed future LHeC
machine presents us with a particularly interesting possibility to probe such
extensions of the SM with new leptons due to the presence of an electron beam
in the initial state. We show that the LHeC will be able to probe an inverse
scenario with much better efficacy compared to the LHC with very nominal
integrated luminosities as well as exploit the advantage of having the electron
beam polarized to enhance the heavy neutrino production rates.
