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We explore the phenomenology of the Georgi-Machacek model extended with twoHiggs doublets and vector fermion doublets invariant under $SU(2)_L \timesU(1)_Y\times \mathcal {Z}_4 \times \mathcal {Z}_2$. The $\mathcal {Z}_4$symmetry is broken spontaneously while the imposed $\mathcal {Z}_2$ symmetryforbids triplet fields to generate any vacuum expectation value and leading toan inert dark sector providing a viable candidate for dark matter and generateneutrino mass radiatively. Another interesting feature of the model isleptogenesis arising from decay of vector-like fermions. A detailed study ofthe model is pursued in search for available parameter space consistent withthe theoretical and experimental observations for dark matter, neutrinophysics, flavor physics, matter-antimatter asymmetry in the Universe.

Common origin of radiative neutrino mass, dark matter and leptogenesis in scotogenic Georgi-Machacek model