  We present a complete study of the vacuum structure of Top Quark Seesaw
models of the Electroweak Symmetry Breaking, including bottom quark mass
generation. Such models emerge naturally from extra dimensions. We perform a
systematic gap equation analysis and develop an improved broken phase
formulation for including exact seesaw mixings. The composite Higgs boson
spectrum is studied in the large-N_c fermion-bubble approximation and an
improved renormalization group approach. The theoretically allowed parameter
space is restrictive, leading to well-defined predictions. We further analyze
the electroweak precision constraints. Generically, a heavy composite Higgs
boson with a mass of ~1TeV is predicted, yet fully compatible with the
precision data.
