SO(10) grand unified theories can ensure the stability of fields thanks to the group structure itself and in this respect are well suited to motivate and accommodate DM candidates in the form of new stable, weakly interacting, massive particles (WIMPs). I will discuss minimal embeddings of dark matter (DM) and inflation into non-supersymmetric SO(10) GUT and present their consequences on the intermediate scales and the resulting DM phenomenology. In particular, I will present a minimal model where such a viable WIMP is provided by the vector representation of SO(10). The DM transforms at low energy as a left-right (LR) bi-doublet and has a rich phenomenology. An interplay with direct detection bounds impose a non-trivial upper limit on the scale of the LR gauge bosons masses.
