I review attempts at constructing EW symmetry breaking sectors from 4D gauge theories with fermionic matter. In these models the Higgs particle as well as the top partners arise as bound states of the theory. A few additional minimality assumptions allow one to isolate a small number of benchmark models. Their salient feature is the existence of extra pseudo Nambu-Goldstone bosons (in addition to the Higgs) of relevance to LHC phenomenology.