Unified compositeness of leptons, quarks and Higgs bosons

The unified compositeness of leptons, quarks and Higgs bosons is proposed as a possible scenario for New Physics beyond the Standard Model. The following topics of the scenario are briefly discussed: - Chiral gauge exceptional symmetry E_6 as a strong internal binding mechanism; - Higgs doublet as a composite Goldstone boson; - Nonlinear Standard Model as a prototype ``low energy'' effective field theory of the unified compositeness; - Hidden local symmetry and an improved ``low energy'' effective field theory of the unified compositeness; - Heavy composite vector bosons and vector boson dominance of the SM gauge interactions; - Universal dominant residual interactions as a signature of the unified compositeness; - Manifestations of the residual interactions and potential of the future TeV e^+e^- linear colliders to uncover the unified compositeness.