  We minimally extend the Standard Model field content by adding new
vector-like fermions at the TeV scale to allow gauge coupling unification at a
realistic scale. We embed the model into a $SU(5)$ grand unified theory that is
asymptotically safe and features an interacting fixed point for the gauge
coupling. There are no Landau poles of the $U(1)$ gauge and Higgs couplings.
Gauge, Yukawa and Higgs couplings are retraced from the fixed point and matched
at the grand unification scale to those of the Standard Model rescaled up to
the same energy. All couplings, their fixed point values and critical exponents
always remain in the perturbative regime.
