  The determination and control of the electron $g$-factor in semiconductor
quantum dots (QDs) are fundamental prerequisites in modern concepts of
spintronics and spin-based quantum computation. We study the dependence of the
$g$-factor on the orientation of an external magnetic field in quantum dots
(QDs) formed between two metallic contacts on stacking fault free InAs
nanowires. We extract the $g$-factor from the splitting of Kondo resonances and
find that it varies continuously in the range between $|g^*| = 5$ and 15.
