  We present results for the six-gluon scattering amplitude at one-loop. Since
our method is semi-numerical, it yields the result for arbitrary momenta and
helicities of the external gluons. We evaluate the colour-ordered
sub-amplitudes with gluons, fermions and scalars running in the internal loop.
This is more than sufficient to give a complete description of six-gluon
scattering at one-loop in QCD. Combination of these results into amplitudes
with ${\cal{N}}=4$ and ${\cal{N}}=1$ multiplets of supersymmetric Yang-Mills or
with a complex scalar in the internal loops allows comparison with analytic
results in the literature. The numerical results for most of the helicity
combinations with loops of complex scalars are new.
